GB1229452A – – Google Patents
GB1229452A – – Google Patents
Info
Publication number
GB1229452A
GB1229452A
GB1229452DA
GB1229452A
GB 1229452 A
GB1229452 A
GB 1229452A
GB 1229452D A
GB1229452D A
GB 1229452DA
GB 1229452 A
GB1229452 A
GB 1229452A
Authority
GB
United Kingdom
Prior art keywords
woodscrew
entry
cartwright
unthreaded
heading
Prior art date
1968-01-23
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
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.)
1968-01-23
Filing date
1968-01-23
Publication date
1971-04-21
1968-01-23
Application filed
filed
Critical
1971-04-21
Publication of GB1229452A
publication
Critical
patent/GB1229452A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
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
F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
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
F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
F16B25/0063—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections with a non-threaded portion on the shaft of the screw
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
F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
F16B25/106—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a self-piercing screw-point, i.e. without removing material
Abstract
1,229,452. Woodscrew. R. L. CARTWRIGHT. 22 April, 1969 [23 Jan., 1968], No. 3445/68. Heading F2H. A woodscrew has at its entry end an unthreaded entry portion 14 terminating in a point 16.
GB1229452D
1968-01-23
1968-01-23
Expired
GB1229452A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB344568
1968-01-23
Publications (1)
Publication Number
Publication Date
GB1229452A
true
GB1229452A
(en)
1971-04-21
Family
ID=9758470
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1229452D
Expired
GB1229452A
(en)
1968-01-23
1968-01-23
Country Status (1)
Country
Link
GB
(1)
GB1229452A
(en)
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1994015552A1
(en)
*
1993-01-15
1994-07-21
Depuy Inc.
Pin for securing a replacement ligament to a bone
GB2318534A
(en)
*
1996-10-28
1998-04-29
Richard Gareth Cross
Masonry drill for driving compatible screws
EP0845607A3
(en)
*
1996-11-29
1998-08-26
Max Co., Ltd.
Driving screw
GB2361977A
(en)
*
2000-05-05
2001-11-07
Robert Butler
Self locating wood screw
1968
1968-01-23
GB
GB1229452D
patent/GB1229452A/en
not_active
Expired
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1994015552A1
(en)
*
1993-01-15
1994-07-21
Depuy Inc.
Pin for securing a replacement ligament to a bone
US5397356A
(en)
*
1993-01-15
1995-03-14
Depuy Inc.
Pin for securing a replacement ligament to a bone
AU670677B2
(en)
*
1993-01-15
1996-07-25
Depuy Orthopaedics, Inc.
Pin for securing a replacement ligament to a bone
US5562671A
(en)
*
1993-01-15
1996-10-08
Depuy Inc.
Ligament replacement cross pinning method
GB2318534A
(en)
*
1996-10-28
1998-04-29
Richard Gareth Cross
Masonry drill for driving compatible screws
EP0845607A3
(en)
*
1996-11-29
1998-08-26
Max Co., Ltd.
Driving screw
US5882162A
(en)
*
1996-11-29
1999-03-16
Max Co., Ltd.
Driving screw
GB2361977A
(en)
*
2000-05-05
2001-11-07
Robert Butler
Self locating wood screw
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Legal Events
Date
Code
Title
Description
1971-09-02
PS
Patent sealed
1979-12-12
PCNP
Patent ceased through non-payment of renewal fee
