GB1572627A - Creation of Inventions and Patents with Artificial Intelligence

GB1572627A – Power-actuated valve
– Google Patents

GB1572627A – Power-actuated valve
– Google Patents
Power-actuated valve

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Publication number
GB1572627A

GB1572627A
GB29358/77A
GB2935877A
GB1572627A
GB 1572627 A
GB1572627 A
GB 1572627A
GB 29358/77 A
GB29358/77 A
GB 29358/77A
GB 2935877 A
GB2935877 A
GB 2935877A
GB 1572627 A
GB1572627 A
GB 1572627A
Authority
GB
United Kingdom
Prior art keywords
power
valve
actuator
socket
stem
Prior art date
1976-07-26
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
GB29358/77A
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.)

Parker and Harper Manufacturing Co Inc

Original Assignee
Parker and Harper Manufacturing Co Inc
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.)
1976-07-26
Filing date
1977-07-13
Publication date
1980-07-30

1977-07-13
Application filed by Parker and Harper Manufacturing Co Inc
filed
Critical
Parker and Harper Manufacturing Co Inc

1980-07-30
Publication of GB1572627A
publication
Critical
patent/GB1572627A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

230000008878
coupling
Effects

0.000
claims
description
8

238000010168
coupling process
Methods

0.000
claims
description
8

238000005859
coupling reaction
Methods

0.000
claims
description
8

230000002441
reversible effect
Effects

0.000
claims
description
6

239000012530
fluid
Substances

0.000
description
5

239000004809
Teflon
Substances

0.000
description
2

229920006362
Teflon®
Polymers

0.000
description
2

238000004519
manufacturing process
Methods

0.000
description
2

239000004519
grease
Substances

0.000
description
1

230000001050
lubricating effect
Effects

0.000
description
1

238000005461
lubrication
Methods

0.000
description
1

239000000463
material
Substances

0.000
description
1

238000000034
method
Methods

0.000
description
1

230000000284
resting effect
Effects

0.000
description
1

238000007789
sealing
Methods

0.000
description
1

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

F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING

F16K31/00—Actuating devices; Operating means; Releasing devices

F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid

F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member

F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston

F16K31/1635—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston for rotating valves

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

F16B2200/00—Constructional details of connections not covered for in other groups of this subclass

F16B2200/69—Redundant disconnection blocking means

F16B2200/73—Cam locks or thread locks

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

Y10T137/00—Fluid handling

Y10T137/5109—Convertible

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T137/00—Fluid handling

Y10T137/8158—With indicator, register, recorder, alarm or inspection means

Y10T137/8225—Position or extent of motion indicator

Y10T137/8275—Indicator element rigidly carried by the movable element whose position is indicated

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T403/00—Joints and connections

Y10T403/70—Interfitted members

Y10T403/7018—Interfitted members including separably interposed key

Y10T403/7021—Axially extending

Description

PATENT SPECIFICATION
( 21) Application No 29358/77 ( 2 ( 31) Convention Application No.
708 698 ( 11) ) Filed 13 July 1977 ( 32) Filed 26 July 1976 in ( 33) United States of America (US) ( 44) Complete Specification publishedi ( 51) INT CL 3 F 16 D 1/08 ( 52) Index at acceptance F 2 U 230 236 239 386 ( 54) POWER-ACTUATED VALVE ( 71) We, THE PARKER & HARPER MANUFACTURING COMPANY INC, of 119 Dewey Street, Worcester, Massachusetts, 01610 United States of America, a company organized and existing under the Laws of the State of Massachusetts, 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:The present invention relates to poweractuated valves and in particular the coupling of the actuator to the valve.
Power actuators are available for many of the valves used in industry These actuators are frequently powered by electric solenoids and by pneumatics Hydraulic power is also used as are rotary electric motors The power actuators are commonly designed to mate with valves that are also sold for manual operation In power operation there is frequently a good deal of stress on valve stem and stem seal.
Since the valve is not necessarily under human observation, a stem sometimes loosens resulting in improper operation and sometimes a lot of undesired spillage.
Both double acting and single acting power actuators are available The double acting actuator provides controlled power for both on and off operation of the valve.
The single acting actuator is normally powered in one direction only and has a spring return Such actuators are normally designed so that they open a valve under power and shut it by the spring return.
Sometimes, however, control systems are set up in reverse With a power actuator it is not always easy to tell whether a valve is open or shut so it is common to add some kind of indicator When a control system is set up to operate in reverse, it is necessary that the valve be open when at rest This change is easily made with ball valves and the like that can be operated through 3600 opening and closing at 90 intervals However, the indicator gets reversed when the valve is rotated 900 to be 50 open at the rest position.
In accordance with the present invention a power actuator is coupled to a valve stem by a socket which can be positioned over the valve stem assembly in any one of 55 four 90 spaced positions The external valve stem assembly includes a special washer with at least one projecting lug and the nut The special washer and stem are shaped to interlock so that one cannot 60 rotate without the other Since the lug and nut are both engaged by the socket and the stem cannot rotate without the lug, the stem cannot rotate without the nut either This prevents the nut from 65 loosening while turning the stem.
An indicator coupled to the actuator carries the indications of OPEN and SHUT as words, symbols or the like in a 3600 ring reading by way of example, OPEN 70 OPEN SHUT SHUT at 90 intervals The indicator is coupled to the actuator shaft to rotate with the shaft A cover over the indicator has a window exposing only one indication If the indicator goes from open 75 to shut when the shaft is turned clockwise, then reversing the indicator cover will cause it to go from shut to open with clockwise shaft rotation.
Thus the invention provides a valve 80 and actuator combination in which the actuator may be connected to the valve stem in either a normally open or normally closed position, a coupling in the connection that locks the valve stem nut with 85 the stem and an indicator that can be installed to read either for normally closed or normally open operation of the valve with valve rotation in the same direction for either case 90 tell 1.0 C 4 r_ W) ” 4 1 572 627 Accordingly therefore, the present inven remaining sides of valve 11 and is bolted to tion provides a power actuated valve corm mounting plate 24 by bolts 30.
prising a valve operable from fully open to Figure 2 is a section taken along 2-2 of fully closed position by ninety degree rota Figure 1 and depicts shaft 12 extending tion of a valve stem, a power actuator for through body 16 and coupling to stem 31 70 rotating said valve stem and co lo alve 11 Stem 31 has an enlarged seal means to couple said actuator to said Fu rface 32 inside of valve body 34 This stem, said coupling means comprising: a type of stem can only be inserted from washer having at least one laterally pro the inside with ball 35 removed since apertruding lug fitted over said valve stem; a ture 36 in body 34 is smaller than sealing 75 nut screw-threaded over said valve stem surface 32 Tab 33 projecting from the on top of said washer; a socket connected bottom of stem 31 mates with slot 39 in to said actuator for rotation thereby ball 35 for turning the ball.
having at least one slot in its sidewall for On top of surface 32 is washer 37 made, receiving said lug and a series of points for example, of Teflon (Registered Trade 80 on its inner sidewall for engaging said nut; Mark) to provide a tight seal and a bearand, means to clamp said actuator to said ing surface at the same time On the outvalve to secure said socket over said stem side of valve body 34 stack of washers 38 The invention can be better understood is positioned over valve stem 31 The botby reference to the accompanying draw tom washer of washers 38 is made of a 85 ings, which illustrate a preferred embodi similar material to that of washer 37, for ment thereof, in which: example, Teflon All together four washers Figure 1 is a perspective view of a power are depicted in stack 38 but the number actuated ball valve according to the inven can be adjusted for spacing purposes On tion top of washer stack 38 is special washer 40 90 Figure 2 is a cross section along 2-2 of having tang 41 projecting from its circumFigure 1 ference.
Figure 3 is an exploded view of the stem As can be better seen in exploded view assembly of Figure 1 Figure 3 the upper part 42 of stem 31 is a Figure 4 is a cross section taken along threaded cylindrical portion in which the 95 4-4 of Figure 2 threads have been ground off to provide Figure 5 is a bottom plan view of the two flat sides Washer 40 has a central actuator of Figure 1 with the valve re aperture 44 matching part 42 of stem 31 moved so that it cannot rotate relative to the stem.
Figure 6 is a top plan view of the Nut 45 threads down over part 42 of stem 100 actuator of Figure 1 31 to secure the stem assembly.
A complete actuator with the valve Coupling socket 46 forms the bottom of assembly is depicted in Figure 1 Valve shaft 12 and fits over nut 45 and washer actuator assembly 10 is mounted on top 40 Slots 47 also depicted in Figure 5 reof ball valve 11 Actuator shaft 12 passes ceive tang 41 in any of four 90 displaced 105 through actuator 10 and couples to valve 11 positions The inside walls of socket 46 as depicted in Figure 2 Indicator 14 between slots 47 and extending above slots mounted to shaft 12 carries the words 47 define a twelve-point socket for engaging ” OPEN OPEN SHUT SHUT” in nut 45 Socket points 48 are depicted in sequence around shaft 12 Cover 15 covers Figures 3 and 5 and are the same as 110 indicator 14 and is secured to body 16 of usually found in a mechanic’s socket actuator 10 Cover 15 has window 17 wrench that would fit nut 45 The depth facing one side to expose one of the indi of socket 46 and of slots 47 are made cator words Cover 15 is mounted to body greater than necessary to accommodate 16 by two screws 18 Window 17 can be variations in the stack height of washers 38 115 rotated to face the opposite side of actua along with washer 40 and nut 45.
tor 10 by removing screws 18 With cover Shaft 12 is sealed in body 16 by O-ring facing the opposite side, the words 50 resting in a groove in the outside wall ” OPEN ” and ” SHUT ” turn up in the of socket 46, and O-ring 51 in a groove of reverse sequence for a 900 rotation of shaft the upper portion of shaft 12 120 12 The upper end of shaft 12 has one In between O-rings 50 and 51 shaft 12 face 20 cut flat for securing a manual carries vertical gear teeth 52 for engaging handle Ports 21 and 22 are located in one gear teeth 54 of piston 55 The meshing of end of body 16 for fluid pressure connec these gear teeth is illustrated in Figure 4.
tions Mounting plate 24 is connected to Piston 55 is positioned in cylindrical cham 125 the bottom of actuator assembly 10 by ber 56 inside body 16 and is forced back screws 25 and is positioned centered under and forth by fluid presure to drive shaft shaft 12 Valve 11 has six sides 26, one 12 in rotation.
of which fits ridges 27 in the bottom of Fluid pressure connections 57 and 58 are plate 24 Mounting strap 28 fits around the provided at one end of body 16 Pressure 130 1 572 627 1 572 627 provided at connection 57 centrally located at one end of body 16 forces piston 55 downward as viewed in Figure 4 Pressure connection 58 is coupled through bore 60 in wall 61 of body 16 providing a passage to the opposite end of chamber 56 Pressure provided through this connection thus forces piston 55 back upward with reference to Figure 4 The length of chamber 56 is accurately dimensioned so that the movement of piston 55 produces substantially a 90 rotation of ball 35.
Piston 55 includes a cylindrical piston head 62 and a leg 64 carrying gear teeth 54.
Referring to Figure 4 the bottom end of leg 64 has a bearing surface 65 against wall 61 of body 16 This bearing surface maintains teeth 54 engaged with teeth 52 of shaft 12 Piston head 62 also engages wall 61 to provide a fluid seal In between piston head 62 and bearing surface 65, the outside portion of leg 64 carries a tapered recess 66 In manufacture, tapered recess 66 is packed with lubricating grease which gradually feeds out over the tapered surface to maintain lubrication of bearing surface 65.
Figure 5 is a bottom plan view of actuator showing mounting plate 24 Mounting plate 24 has series of ridges 27 to accept different sizes of valves 11 As depicted, there are four sets of ridges to mate with four different sizes of valve bodies.
Figure 6 is a top plan view of actuator 10 showing indicator 14 with cover 15 removed It will be seen that the indications of ” SHUT ” and ” OPEN ” arranged around indicator 14 are such that when it indicates “SHUT” on one side it indicates OPEN” on the other With a 900 rotation of shaft 12, it can be seen that the indication at the opposite sides will reverse.
Thus, in order to reverse the sense of operation, valve 11 can be disconnected and valve stem 31 rotated 900 Then with actuator 10 reassembled to valve 11, cover 15 is removed by unscrewing two screws 18 and is reversed so that the window in cover 15 exposes the opposite indication of indicator 14 The actuator can be a spring return actuator instead of double acting or it can use two opposed pistons instead of one or it may be actuated by some other type of power drive than fluid pressure against a piston Likewise, the valve may be a plug valve or butterfly valve or any other type of valve using 900 rotation for operation.

Claims (11)

WHAT WE CLAIM IS:

1 A power-actuated valve comprising a valve operable from fully open to fully closed position by ninety degree rotation of a valve stem, a power actuator for rotating said valve stem and coupling means to couple said actuator to said valve stem, said coupling means comprising: a washer hav 65 ing at least one laterally protruding lug fitted over said valve stem; a nut screwthreaded over said valve stem on top of said washer; a socket connected to said actuator for rotation thereby having at least 70 one slot in its sidewall for receiving said lug and a series of points on its inner sidewall for engaging said nut; and, means to clamp said actuator to said valve to secure said socket over said stem 75

2 A power-actuated valve according to claim 1, wherein said at least one slot is four slots spaced at 900 intervals whereby said socket can receive said valve stem at any one of four 90 spaced positions 80

3 A power-actuated valve according to claim 1 or claim 2 wherein said series of points consists of 12 points to provide a 12-point socket.

4 A power-actuated valve according to 85 any one of claims 2 or 3 wherein said means to clamp comprises a mounting plate secured to said actuator and a strap around said valve secured to said plate.

A power-actuated valve according to 90 claim 4, wherein said mounting plate carries a plurality of ridges for engaging valve bodies of different sizes.

6 A power-actuated valve operating from fully closed to fully open by ninety 95 degree rotation comprising: a power actuator in a first body, a gear driven rotatable shaft passing entirely through said first body to provide the output of said actuator; an indicator at a first end of said shaft outside 100 of said first body; a socket coupling at a second end of said shaft; a valve in a second body; a valve stem extending from said second body and secured thereto by a nut external to said body; a shaped washer hav 105 ing at least one laterally extending tang secured to said stem under said nut; and, mounting means for clamping said first body to said second body with said socket engaging both said tang and said nut 110

7 A power-actuated valve according to claim 6 wherein said indicator comprises an indicator plate secured to said shaft and carrying indicia representing open and shut in the sequence “OPEN OPEN SHUT 115 SHUT” spaced at ninety degree intervals around said shaft.

8 A power-actuated valve according to claim 7 wherein a cover is secured to said first body covering said indicator plate and 120 1 572 627 exposing one of said indicia, said cover being reversible so that it can be secured in either of two one hundred and eighty degree reversed positions.

9 A power-actuated valve according to any one of claims 6 to 8 wherein said socket carries four slots for accepting said tang in four ninety degree displaced positions of rotation.

10 A power-actuated valve according to claim 9 wherein said socket is a 12-point socket for engaging said nut in a plurality of displaced positions of rotation.

11 A power-actuated valve substantially as herein described with reference to the 15 accompanying drawings.
BROOKES, MARTIN & WILSON, Chartered Patent Agents, Prudential Buildings, St Philip’s Place, Birmingham, B 3 2 AF.
Agents for the Applicants.
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 IAY, from which copies may be obtained

GB29358/77A
1976-07-26
1977-07-13
Power-actuated valve

Expired

GB1572627A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US05/708,698

US4046350A
(en)

1976-07-26
1976-07-26
Power actuated valve

Publications (1)

Publication Number
Publication Date

GB1572627A
true

GB1572627A
(en)

1980-07-30

Family
ID=24846845
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB29358/77A
Expired

GB1572627A
(en)

1976-07-26
1977-07-13
Power-actuated valve

Country Status (7)

Country
Link

US
(1)

US4046350A
(en)

JP
(1)

JPS5315622A
(en)

CA
(1)

CA1048477A
(en)

DE
(1)

DE2733195A1
(en)

GB
(1)

GB1572627A
(en)

NL
(1)

NL183249C
(en)

SE
(1)

SE432010B
(en)

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Publication date
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GB2552643A
(en)

2016-06-02
2018-02-07
Fort Vale Eng Ltd
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1976

1976-07-26
US
US05/708,698
patent/US4046350A/en
not_active
Expired – Lifetime

1977

1977-06-22
CA
CA77281162A
patent/CA1048477A/en
not_active
Expired

1977-07-13
GB
GB29358/77A
patent/GB1572627A/en
not_active
Expired

1977-07-20
SE
SE7708370A
patent/SE432010B/en
not_active
IP Right Cessation

1977-07-22
DE
DE19772733195
patent/DE2733195A1/en
active
Granted

1977-07-22
NL
NLAANVRAGE7708209,A
patent/NL183249C/en
not_active
IP Right Cessation

1977-07-25
JP
JP8844677A
patent/JPS5315622A/en
active
Granted

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2552643A
(en)

2016-06-02
2018-02-07
Fort Vale Eng Ltd
Valve assembly

Also Published As

Publication number
Publication date

NL183249C
(en)

1988-09-01

US4046350A
(en)

1977-09-06

JPS5531353B2
(en)

1980-08-18

SE432010B
(en)

1984-03-12

NL183249B
(en)

1988-04-05

SE7708370L
(en)

1978-01-27

DE2733195C2
(en)

1987-06-25

NL7708209A
(en)

1978-01-30

CA1048477A
(en)

1979-02-13

DE2733195A1
(en)

1978-02-02

JPS5315622A
(en)

1978-02-13

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