US3672632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swing out valve structure
Assignee: Grove Valve and Regulator Co
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Filing: 1971-05-03
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Granted: 1972-06-27
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Expires: 1991-05-03
Abstract
Abstract A valve structure comprising a swing-out body which is clamped between line flange connector plates by means of elongated studs with clamping nuts. Those studs which are located on, and on one side of, a diameter of the flow passages are provided with jacking nuts which may be tightened to engage the inside of the connector plates and separate them out of clamping engagement with the swing out body. A pair of hinge members welded to the swing out body have circular openings therein which rotatably receive bushings threadedably carried on one of the studs located on the aforementioned diameter. The studs without jacking nuts may be completely removed and the valve body may be pivoted out for internal inspection. Lateral slots in the hinge members permit removal of the valve body from the stud when the bushings are threaded back out of the circular openings in the hinges.
Inventors
- 👤 Peter C M Chow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:22
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07; F16K7/075; Y; Y10; Y10T; Y10T137/00; Y10T137/7504
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
229 words
A valve structure comprising: a valve body having a flow passageway therethrough, a pair of end connector plates having flow openings therethrough, means on the outer faces of said connector plates for connecting them to pipe sections, a plurality of aligned openings around the edges of said connector plates, a plurality of elongated threaded studs extending between said connector plates and through said aligned openings, a plurality of clamping nuts carried on said studs to bear against the outer surfaces of said connector plates, a plurality of jacking nuts carried on certain of said studs on, and on one side of, a given diameter of said flow openings and movable into engagement with the inner surfaces of said connector Plates to impart separating forces thereto, the elongated studs other than said certain studs, when removed, leaving sufficient space for passage of said valve body, transversely between said connector plates, said certain studs and said jacking nuts being of sufficient strength to hold said connector plates in spaced relationship against forces transmitted by a pipeline, the improvement comprising: hinge members secured to said valve body, and means operatively associated with one of said certain studs located on said given diameter for forming a rotatable connection between said hinge member and said certain stud, said rotatable connection means further preventing axial movement of said hinge member along said one certain stud.
Claim 2
Dependent Claim
229 words
A valve structure comprising: a valve body having a flow passageway therethrough, a pair of end connector plates having flow openings therethrough, means on the outer faces of said connector plates for connecting them to pipe sections, a plurality of aligned openings around the edges of said connector plates, a plurality of elongated threaded studs extending between said connector plates and through said aligned openings, a plurality of clamping nuts carried on said studs to bear against the outer surfaces of said connector plates, a plurality of jacking nuts carried on certain of said studs on, and on one side of, a given diameter of said flow openings and movable into engagement with the inner surfaces of said connector Plates to impart separating forces thereto, the elongated studs other than said certain studs, when removed, leaving sufficient space for passage of said valve body, transversely between said connector plates, said certain studs and said jacking nuts being of sufficient strength to hold said connector plates in spaced relationship against forces transmitted by a pipeline, the improvement comprising: hinge members secured to said valve body, and means operatively associated with one of said certain studs located on said given diameter for forming a rotatable connection between said hinge member and said certain stud, said rotatable connection means further preventing axial movement of said hinge member along said one certain stud.
Claim 3
Dependent Claim
77 words
The valve structure defined by claim 1 wherein said hinge member comprises: a lug secured to said valve body, and a circular hole through said lug, and said rotatable connection comprises: a bushing threadedly received on said one stud, said bushing being of an external diameter along a portion of its length to be rotatably received in said circular hole and being of a larger cross section adjacent said portion to take axial thrust from said lug.
Claim 4
Dependent Claim
40 words
The valve structure defined by claim 2 including: a lateral slot in said lug opening into said circular hole, said lug being disengageable from said one stud through said slot when said bushing is threaded out of said circular hole.
Claim 5
Dependent Claim
22 words
The valve structure defined by claim 2 including: a thrust washer interposed between said lug and said portion of larger cross section.
Claim 6
Dependent Claim
90 words
The valve structure defined by claim 1 wherein said hinge member comprises: a pair of spaced lugs secured to said valve body, and a circular hole through each of said lugs, and said rotatable connection comprises: a pair of bushings threadedly received on said one stud, on remote sides of said lugs, said bushings being of an external diameter along corresponding portions of their length to be rotatably received in said circular holes, and being of a larger cross section adjacent said portions to take axial thrust from said lug.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |