GB1568897A - Creation of Inventions and Patents with Artificial Intelligence

GB1568897A – Swivel means
– Google Patents

GB1568897A – Swivel means
– Google Patents
Swivel means

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Publication number
GB1568897A

GB1568897A
GB47794/77A
GB4779477A
GB1568897A
GB 1568897 A
GB1568897 A
GB 1568897A
GB 47794/77 A
GB47794/77 A
GB 47794/77A
GB 4779477 A
GB4779477 A
GB 4779477A
GB 1568897 A
GB1568897 A
GB 1568897A
Authority
GB
United Kingdom
Prior art keywords
bolt
swivel means
shackle
opening
pivot assembly
Prior art date
1977-03-31
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB47794/77A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

American Hoist and Derrick Co

Original Assignee
American Hoist and Derrick Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1977-03-31
Filing date
1977-11-17
Publication date
1980-06-11

1977-11-17
Application filed by American Hoist and Derrick Co
filed
Critical
American Hoist and Derrick Co

1980-06-11
Publication of GB1568897A
publication
Critical
patent/GB1568897A/en

Status
Expired
legal-status
Critical
Current

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Global Dossier

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Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B66—HOISTING; LIFTING; HAULING

B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES

B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles

B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means

B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled

B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR

F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes

F16G15/08—Swivels

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T403/00—Joints and connections

Y10T403/32—Articulated members

Y10T403/32114—Articulated members including static joint

Y10T403/32213—Articulate joint is a swivel

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T403/00—Joints and connections

Y10T403/32—Articulated members

Y10T403/32975—Rotatable

Description

PATENT SPECIFICATION
_ ( 21) Application No 47794/77 >a ( 31) Convention Application No.
X: 783 1 ( 11) ( 22) Filed 17 Nov 1977 153 ( 32) Filed 31 March 1977 in X ( 33) United States of America (US) 0 ( 44) Complete Specification published 11 June 1980 ( 51) INT CL 3 F 16 G 15/08 ( 52) Index at acceptance F 2 Q 51 ( 54) SWIVEL MEANS ( 71) We AMERICAN HOIST & DERRICK COMPANY, of P O Box 3128, Tulsa, Oklahoma, United States of America; a corporation organized and existing under the laws of the State of Delaware, Delaware, United States of America, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed to be particularly described in and by the following statement:
This invention lies in the field of attachment devices.
Still more particularly this invention concerns a type of attachment device which can be attached to an object either by means of a threaded opening or by means of a bolt, that can be passed through an opening in the object and locked by means of a nut.
Still more particularly this invention concerns a type of attachment device by means of which a tensile force can be applied to the bolt, and to the object, wherein the bolt has adequate strength for any direction of the force within a hemisphere, cantered about the point of attachment of the device to the object.
In the prior art, fittings used for applying cables or other tensile members to the surface of a large object, or to a heavy base, have usually employed eye bolts, or ring bolts Such eye bolts, because of their rigid construction, do not have the same load carrying capabilities for all directions of the applied force, relative to the axis of the bolt Therefore, this requires that the user predetermines the optimum direction of the force loading when handling the object to be lifted, or the device to be attached to the base.
Other devices have been described in the literature which do provide a universal type connection between the cable and the object However, in most of these the attachment between the cable and the bolt is at some considerable distance from the plane of the surface of the object, and therefore the transverse bending moments can be dangerously large 50 It is a primary object of this invention to provide an attachment device, or swivel which can be attached to a surface of a large object, or base, so that a tensile member such as a cable, can be connected to 55 the bolt, so as to apply forces to the object in any selected direction.
It is a further object of this invention to prfovide a universal type connection between the tensile mem 60 ber and the attachment device, so that a minimum bending moment is provided when the direction of the tensile force is approximately parallel to the surface of the object 65 According to the present invention there is provided a swivel means for applying a tensile load to an object, comprising:
(a) a shoulder bolt adapted to be attached to said object, said bolt having a 70 cylindrical portion of larger diameter than the attachment portion, said larger diameter portion providing a shoulder which presses against the surface of said object, to resist transverse bending moments on 75 said bolt; (b) a load ring of unitary construction, having a body portion, including a circular bored opening, and adapted to rotate about said cylindrical portion of said shoulder 80 bolt, and including two oppositely extending shaft portions, coaxial with each other, and perpendicular to the axis of said bore; (c) a Y-shaped pivot assembly, having bored openings on the ends of the two arms 85 of said Y, said openings adapted to rotate about said shaft portions of said load ring:
and (d) an opening through the leg of said Y-shaped pivot assembly, adapted to re 90 1 568 897 1 568 897 ceive the pin of a shackle.
The shoulder bolt can be locked into a trapped hole in one surface of the body, or it can be in the form of a long bolt threaded at the end, which is adapted to pass through a drilled opening in the body, and to be locked by means of a nut on the the opposite surface of the body.
Various types of shackles with different types of shackle pins can be connected to the leg of the Y-shaped pivot assembly.
These and other objects and advantages of this invention and a better understanding of the principles and details of the invention will be evident from the following description taken in conjunction with the appended drawings in which:
FIGURE 1 illustrates one embodiment of this invention, in which a stud bolt is used, and including a shackle in which the pin is locked in the shackle by means of a locking sleeve inside the opening in the leg of the pivot assembly.
FIGURE 2 illustrates an embodiment in which a different type of shackle is used to connect to the pivot assembly.
FIGURE 3 illustrates an embodiment of the invention in which the shoulder bolt comprises a long bolt having a threaded shank, which can be locked through an opening in the body, by means of a nut.
FIGURE 3 also illustrates the use of a shackle which includes a wire rope socket, for attachment to a cable.
Referring now to the drawings, there is shown in FIGURES 1 and 2 an embodiment of this invention which utilizes a stud type shoulder bolt The entire assembly of bolt, load ring, pivot arms and shackle are indicated generally by the numeral 10.
The numeral 12 indicates generally the bolt and load ring assembly The numeral 18 illustrates generally the shoulder bolt.
There is a tapped opening 16 in one surface of a large and heavy body, or base 14, to which a tensile force is to be connected The direction of the tensile force can be any direction within a hemisphere centered about the surface 15 of the body 14 and the axis of the bolt 18.
The bolt 18 includes a cylindrical portion 32 of selected diameter and selected length A head 34 which can be of a hexagonal or any other shape with which an appropriate wrench can be used There is a threaded extension 22, of lesser diameter than the cylindrical portion 32, such as to provide a shoulder 20 such that when the bolt is screwed tight into the socket 16, there will be a load bearing edge 20 A, such as to resist transverse bending of the bolt, when the tensile force is transverse to the axis of the bolt There is a shallow circumferential channel 21 cut in the threaded portion of the bolt adjacent the shoulder, for the purpose, as is well known, of minimizing stress at that point A similar stress relieving portion is provided at the junc tion of the bolt head 34 and the body portion 32 70 A load assembly of unitary construction is provided, with a body portion 24, through which a bored opening 33 is provided of slightly larger diameter than the cylindrical portion 32 of the bolt The bolt can be 75 slipped through this opening and screwed into the body 14 and locked tight by means of the head 34 There is a thin thrust washer 36 between the bolt head 34 and the load assembly 12 such that the load assem 80 bly can rotate freely when confined between the surface 15 of the object, the thrust washer 36, and the bolt head 34.
The load assembly has two oppositely extending short circular shafts, 26 A and 26 B, 85 which are coaxial, and their axis is perpendicular to the axis of the opening 33.
A pivot arm assembly 37 comprises two pivot arms 38 A and 38 B, which are shaped so that when two ends 44 A and 44 B are 90 clamped together, as by a rivet 42, it will form a Y-shaped pivot assembly, with the arms of the Y, 40 A and 40 B, spaced apart by a dimension which is slightly larger than the two parallel faces 28 A and 28 B of the 95 body Openings are provided in the two arms of Y such that they can be slipped over the shaft extensions 26 A and 26 B, and the two pivot arms locked together by the rivet 42, to form a rigid assembly 10 The Y-shaped pivot assembly has an opening 46 A in the leg of the Y, which is of sufficient diameter such that a locking sleeve 46 can be inserted A shackle 50 is provided with two ears which are spaced 10 apart to slip over the width of the leg 44 A, 44 B A pin 48 is then slipped through the opening 52 A in the ear of the shackle, which can be hammered into, and locked by, the locking sleeve 46, and through the lp second ear 52 B Thus the pin will not move out of the ears unless forced out by suitable means.
The axis 31 of the projecting shafts 26 A and 26 B is positioned as close 29 to the 11, shoulder of the bolt as possible, leaving only sufficient space for the projections 40 A and 40 B of the pivot assembly to clear the surface 15 of the body By this means, a transverse force on the bolt has a minimum 121 moment arm, and therefore there is a minimum of bending stress in the bolt.
A cable loop or other attachment means can be applied to the shackle 50 to exert a force, 50 which is applied through the pin 12 48 to the pivot assembly 38, and through the shafts 26 A, 26 B to the load ring 24, and to the bolt 18 Since the load ring can rotate about the axis of the bolt, and the area of the shafts 26 A, 26 B are perpendicu 13 1 568 897 lar to the axis of the bolt, the force that is applied to the shackle 50 can be exerted in any direction within 3600 of the axis of the bolt, and within any angle up to 90 between its direction and the surface 15 of the object 14.
The shape of the body of the load ring 12 can be anything desired, provided that there are two parallel opposite faces 28 A and 28 B, which have the outwardly directed shafts, which support the pivot assembly.
Thus the body portion can be square with two opposite faces 28 A and 28 B, or it can be hexagonal, or any selected shape, which includes the two faces 28 A and 28 B. Referring now to FIGURE 2, there is shown a similar bolt and shackle assembly, as in FIGURE 1, except that the shackle has a pin which comprises a body portion 62, and a shoulder 59 and a ring 58.
The opposite end of the pin 60 is threaded and is adapted to screw into a threaded opening in one ear of the shackle The opening 56 in the leg of the Y-shaped swivel assembly is appropriate for the type of pin that is inserted into the shackle.
This opening is different of course from FIGURE 1.
Referring now to FIGURE 3, the object 14 A is of a different shape than object 14 of FIGURES 1 and 2, having a portion of limited thickness through which there is an opening 16 A which is drilled, and into which can be inserted a long shank 32 A of the bolt 18 A The shank is long enough to extend through the opening 16 A, and a nut 32 B is provided for screwing onto the threaded portion 22 A, so that the bolt 18 A can be locked into the opening 16 A through the body 14 A, with the shoulder 20 pressed tightly against the surface 15.
The load ring 12 is similar to that of FIGURES 1 and 2, as in the cylindrical portion 32 of the bolt and the head 34 The Y-shaped pivot assembly 38 A-38 B is also similar.
In FIGURE 3 a type of shackle 76 is provided which has two ears which are pierced with openings 76 A, 76 B through which a pin 70 can be provided The pin has a head 72 on one end, and a locking means, such as a cotter pin 74, on the other end The type of shackle illustrated includes a wire rope socket 78, by means of which a wire cable 80 can be anchored into the shank 78 of the shackle 76.
What has been described is a shackle type of swivel assembly, for applying a tensile force to a bolt, attached to a surface of a large and heavy object The direction of application of the force can be any desired angle within a hemisphere centered about the bolt The design is such that when the force is parallel to the surface of the object, that is, perpendicular to the axis of the bolt, a minimum movement of force is applied The design of the bolt includes a shoulder such that the pressure of the shoulder edge against the object is such as to minimize the deflection, stress 70 and strain of the bolt The device can be designed for any type of shackle means for connection of a tensile member to the bolt assembly.

Claims (1)

WHAT WE CLAIM IS: –
1 A swivel means for applying a tensile load to an object, comprising:
(a) a shoulder bolt adapted to be at 80 tached to said object, said bolt having a cylindrical portion of larger diameter than the attachment portion, said larger diameter portion providing a shoulder which presses against the surface of said object, 85 to resist transverse bending moments on said bolt; (b) a load ring of unitary construction, having a body portion, including a circular bored opening, and adapted to rotate about 90 said cylindrical portion of said shoulder bolt, and including two oppositely extending shaft portions, coaxial with each other, and perpendicular to the axis of said bore; (c) a Y-shaped pivot assembly, having 95 bored openings on the ends of the two arms of said Y, said openings adapted to rotate about said shaft portions of said load ring; and (d) an opening through the leg of said 100 Y-shaped pivot assembly, adapted to receive the pin of a shackle.
2 A swivel means as claimed in claim 1, in which said attachment portion com 105 prises a threaded stud which is adapted to be screwed into a tapped hole in said object.
3 A swivel means as claimed in claim 1, in which said attachment portion com 110 prises a threaded bolt which is adapted to be inserted through an opening in said object, and locked by a nut.
4 A swivel means as claimed in claim 115 1, including a thrust washer between the head of said shoulder bolt and said load ring.
A swivel means as claimed in claim 120 1, in which said Y-shaped pivot assembly comprises two pivot arms, which are each adapted to be placed over one of said shaft portions on said load ring, and including means to clamp the two free ends of said 125 arms together, to form the leg of said Y.
6 A swivel means as claimed in claim 1, including a shackle, having a pin; said leg of said Y-shaped pivot assembly includ 130 1 568 897 ing a locking sleeve inside said opening, adapted to hold said pin in place.
7 A swivel means as claimed in claim 1, including a shackle which is locked to said pivot assembly by a threaded pin.
8 A swivel means as claimed in claim I, including a shackle which is attached to a cable by means of a cable socket.
9 A swivel means, substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings 15 POTTS, KERR & CO.
27, Sheet Street, Windsor Berkshire and 15, Hamilton Square, Birkenhead, Merseyside.
Printed for Her Majesty’s Stationery Office by The Tweeddale Press Ltd, Berwick-upon-Tweed, 1980.
Published at the Patent Office, 25 Southampton Buildings London, WC 2 A l AY, from which copies may be obtained.

GB47794/77A
1977-03-31
1977-11-17
Swivel means

Expired

GB1568897A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US05/783,153

US4074519A
(en)

1977-03-31
1977-03-31
Swivel shackle

Publications (1)

Publication Number
Publication Date

GB1568897A
true

GB1568897A
(en)

1980-06-11

Family
ID=25128340
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB47794/77A
Expired

GB1568897A
(en)

1977-03-31
1977-11-17
Swivel means

Country Status (6)

Country
Link

US
(1)

US4074519A
(en)

CA
(1)

CA1065585A
(en)

DE
(1)

DE2755280A1
(en)

FR
(1)

FR2385954A1
(en)

GB
(1)

GB1568897A
(en)

NL
(1)

NL7713370A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE10062972A1
(en)

2000-12-16
2002-07-04
Theile J D Gmbh
Shackle is mounted on threaded bolt which is screwed into object to be lifted, mounting consisting of ring which fits between shackle and ball bearing mounted on plate attached to bolt

Families Citing this family (54)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE3123029C2
(en)

1981-06-10
1985-05-09
Maho Werkzeugmaschinenbau Babel & Co, 8962 Pfronten

Workpiece handling device

US4558979A
(en)

1981-09-28
1985-12-17
Andrews Gary E
Fastening device

US4592686A
(en)

1981-09-28
1986-06-03
Andrews Gary E
Fastening device

US4431352A
(en)

1981-09-28
1984-02-14
Andrews Gary E
Fastening device

US4549829A
(en)

1982-09-24
1985-10-29
The Crosby Group, Inc.
Trunnion for hook and block assembly

US4687365A
(en)

1985-03-07
1987-08-18
Condux International, Inc.
Load limited swivel connector

EP0208028A1
(en)

1985-07-08
1987-01-14
Pmb Systems Engineering Limited
Lifting gear and testing it

US4641986A
(en)

1985-08-30
1987-02-10
Cbc Industries, Inc.
Multi-position eyebolt

US4669618A
(en)

1985-11-18
1987-06-02
Outboard Marine Corporation
Lifting assembly

US4699410A
(en)

1986-08-28
1987-10-13
Seidel Richard E
Swivel connector for hoists and the like

FR2638150B1
(en)

1988-10-21
1990-12-28
Lecourt Marc

IMPROVED LIFTING RING FOR SIDE LOADING OF HEAVY LOADS

US4940371A
(en)

1989-07-19
1990-07-10
Cholovich George M
Trailer lock down device

US5413445A
(en)

1991-11-22
1995-05-09
Aceros Cartellone, S.A.
End link and swivel assemblies for chaincables

US5735563A
(en)

1992-05-18
1998-04-07
River Don Castings Limited
Lifting devices

GB9210601D0
(en)

1992-05-18
1992-07-01
River Don Castings Ltd
Improvements in or relating to lifting devices

US5381650A
(en)

1993-11-22
1995-01-17
The Crosby Group, Inc.
Swivel hardware assembly

US5634734A
(en)

1995-10-13
1997-06-03
Jergens, Inc.
Hoist device

US5823588A
(en)

1995-11-13
1998-10-20
Morghen; Manfred A.
Universal hoist assembly

AU689728B1
(en)

1996-11-06
1998-04-02
Jergens, Inc.
Hoist device

US5970636A
(en)

1997-07-25
1999-10-26
Esco Corporation
Dump block

US5927780A
(en)

1998-03-24
1999-07-27
The Crosby Group, Inc.
Swivel hoist ring to web sling connector

CA2248484A1
(en)

1998-09-25
2000-03-25
Lloyd L. Walker
Back spin swivelling device for a progressive cavity pump

US6375380B1
(en)

2000-02-04
2002-04-23
Columbus Mckinnon Corporation
Connector assembly apparatus and method for use

FR2806637B1
(en)

2000-03-23
2002-07-12
Zedel

REMOVABLE MOORING DEVICE EQUIPPED WITH A DEGAINE

US6699135B2
(en)

2000-11-10
2004-03-02
Stat Cochron
Multidirectional amusement device

US7066822B2
(en)

2000-11-10
2006-06-27
Stat Cochron
Multidirectional amusement device

US6749237B1
(en)

2001-06-08
2004-06-15
Shu Lan Ma
Unitary body swiveling hoist ring and method of manufacture

US6443514B1
(en)

2001-09-17
2002-09-03
Jergens, Inc.
Hoist ring

US6652012B1
(en)

2002-02-26
2003-11-25
Jergens, Inc.
Hoist ring

US7093996B2
(en)

2003-04-30
2006-08-22
General Electric Company
Methods and apparatus for mounting a gas turbine engine

EP2427368A4
(en)

2009-05-05
2013-09-25
Dcl Engineered Solutions L L C
Detachable synthetic rope connector

DE102009033032A1
(en)

2009-07-02
2011-01-05
Gartner Steel And Glass Gmbh

Rope anchorage with overload protection

US8794886B1
(en)

2013-03-11
2014-08-05
Oshkosh Corporation
Cargo tie down

EP2969058B1
(en)

2013-03-14
2020-05-13
Icon Health & Fitness, Inc.
Strength training apparatus with flywheel and related methods

LU92242B1
(en)

2013-07-08
2015-01-09
Intelprop Sa

Revolving lifting point

JOP20140215B1
(en)

2013-07-10
2023-03-28
Esco Group Llc
Connector to facilitate lifting of wear parts

US20150123418A1
(en)

2013-11-01
2015-05-07
Wear Applications and Management Services Pty Ltd.
Lifting device, system and associated methods

WO2015100429A1
(en)

2013-12-26
2015-07-02
Icon Health & Fitness, Inc.
Magnetic resistance mechanism in a cable machine

US10426989B2
(en)

2014-06-09
2019-10-01
Icon Health & Fitness, Inc.
Cable system incorporated into a treadmill

CN104454958A
(en)

2014-10-30
2015-03-25
河海大学常州校区
Pin-shaft-middle-single-face-planed hinged connection

TWI644702B
(en)

2015-08-26
2018-12-21
美商愛康運動與健康公司
Strength exercise mechanisms

US10940360B2
(en)

2015-08-26
2021-03-09
Icon Health & Fitness, Inc.
Strength exercise mechanisms

US10012329B2
(en)

2015-09-03
2018-07-03
Lds Land Development Services
Systems and methods for a pipeline anchor lug sleeve and link

US10046611B2
(en)

2015-09-28
2018-08-14
Charles Kennith Fincher
Mechanical connecting link for tow straps and pintle hitches

US9783393B2
(en)

2015-11-24
2017-10-10
Safety Products Engineering Group, Inc.
Lifting apparatus

CN105329767B
(en)

2015-11-26
2018-08-24
中国航空工业集团公司沈阳飞机设计研究所
A kind of aircraft lifting tool

US10293211B2
(en)

2016-03-18
2019-05-21
Icon Health & Fitness, Inc.
Coordinated weight selection

US10441840B2
(en)

2016-03-18
2019-10-15
Icon Health & Fitness, Inc.
Collapsible strength exercise machine

US10252109B2
(en)

2016-05-13
2019-04-09
Icon Health & Fitness, Inc.
Weight platform treadmill

US10227216B2
(en)

2016-06-28
2019-03-12
Marcus Albert J. RANGER
Tool lifting devices, oilfield flange lifting safety devices, and related methods of use

US10661114B2
(en)

2016-11-01
2020-05-26
Icon Health & Fitness, Inc.
Body weight lift mechanism on treadmill

CN107804428B
(en)

2017-10-14
2020-08-14
江苏亚星锚链股份有限公司
Marine chain-abandoning protection device

USD964152S1
(en)

2019-11-04
2022-09-20
Zhejiang Runva Mechanical & Electrical Co., Ltd
Bow shackle

USD991015S1
(en)

2023-03-06
2023-07-04
Qingdao Huilisheng Hardware Products Co., Ltd.
Winch hook

Family Cites Families (6)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US679889A
(en)

1900-08-16
1901-08-06
Charles I Dorn
Sand-line and pump or bailer connection.

US2010853A
(en)

1934-08-25
1935-08-13
Leonard H Dyer
Shackle

US3297293A
(en)

1965-01-13
1967-01-10
American Drill Bushing Company
Fastening device

US3453822A
(en)

1967-01-16
1969-07-08
American Hoist & Derrick Co
Coupling link

US3492033A
(en)

1968-09-18
1970-01-27
Charles R Mueller & Sons Inc
Clevis assembly

US3905633A
(en)

1974-09-30
1975-09-16
Caterpillar Tractor Co
Swivel mounted lifting eye for engines

1977

1977-03-31
US
US05/783,153
patent/US4074519A/en
not_active
Expired – Lifetime

1977-11-17
GB
GB47794/77A
patent/GB1568897A/en
not_active
Expired

1977-11-24
CA
CA291,674A
patent/CA1065585A/en
not_active
Expired

1977-12-02
NL
NL7713370A
patent/NL7713370A/en
not_active
Application Discontinuation

1977-12-12
DE
DE19772755280
patent/DE2755280A1/en
not_active
Withdrawn

1977-12-27
FR
FR7739323A
patent/FR2385954A1/en
not_active
Withdrawn

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE10062972A1
(en)

DE10062972C2
(en)

2000-12-16
2002-12-12
Theile J D Gmbh

sling swivel

Also Published As

Publication number
Publication date

US4074519A
(en)

1978-02-21

CA1065585A
(en)

1979-11-06

NL7713370A
(en)

1978-10-03

DE2755280A1
(en)

1978-10-05

FR2385954A1
(en)

1978-10-27

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