US3628565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible check valves
Assignee: Lanteris Space LLC
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Filing: 1970-03-03
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Granted: 1971-12-21
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Expires: 1990-03-03
Abstract
Abstract Check valve apparatus for controlling fluid flow, comprising a flexible ''''flapper'''' -type valve member and a tubular valvereceiving collar including an internal annular valve seat. The collar is apertured around a portion of its periphery to accommodate insertion of the flexible valve laterally of the direction of fluid flow. Mounting of a hose over the collar, and clamping of the hose thereon, provides a seal and completes the assembly.
Inventors
- 👤 Irvin E Mcwethy
- 👤 Bjorn O Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:28
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/16; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7854; Y10T137/7856; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
In check valve apparatus of the kind comprising a fitting or conduit for receiving a hose thereover and having an internal annular valve-seating shoulder, and a flexible valve member within said conduit cooperable with said shoulder to control flow of fluid through the conduit in accordance with the direction of fluid flow, the improvements which comprise: provision of an aperture in a portion of the periphery of the wall of said conduit, said aperture accommodating insertion of said flexible valve member into said conduit, in position confronting said shoulder, and ready removal of the same; the wall of said conduit having a recessed area adjacent said aperture and facing exteriorly of said conduit; and said valve member having flange means which lies within said recessed area, exteriorly of said conduit, when said valve member is disposed within said conduit, said flange means fitting with said recessed area so that mounting of a hose over the conduit, at the valve installation position, seals the valve in the conduit as well as insuring retention of said flange means in said recess.
Claim 2
Dependent Claim
179 words
In check valve apparatus of the kind comprising a fitting or conduit for receiving a hose thereover and having an internal annular valve-seating shoulder, and a flexible valve member within said conduit cooperable with said shoulder to control flow of fluid through the conduit in accordance with the direction of fluid flow, the improvements which comprise: provision of an aperture in a portion of the periphery of the wall of said conduit, said aperture accommodating insertion of said flexible valve member into said conduit, in position confronting said shoulder, and ready removal of the same; the wall of said conduit having a recessed area adjacent said aperture and facing exteriorly of said conduit; and said valve member having flange means which lies within said recessed area, exteriorly of said conduit, when said valve member is disposed within said conduit, said flange means fitting with said recessed area so that mounting of a hose over the conduit, at the valve installation position, seals the valve in the conduit as well as insuring retention of said flange means in said recess.
Claim 3
Dependent Claim
39 words
Check valve apparatus in accordance with claim 1, and further characterized in that said flange means comprises a pair of flanges projecting in opposite directions from said valve member and each retained within a portion of said recessed area.
Claim 4
Dependent Claim
68 words
Check valve apparatus in accordance with claim 1, and further characterized in that said conduit is cylindrical in cross section, said valve member is generally circular, and said flange means and the aperture in said conduit are so shaped and disposed that said flange means lies generally flush with the exterior surfaces of said conduit in a position to contact the interior wall surface of a mounted hose.
Claim 5
Dependent Claim
146 words
Check valve apparatus of the kind comprising a cylindrical conduit having an internal annular valve-seating shoulder, and a flexible generally circular valve member cooperable therewith to control flow of liquid through the conduit in accordance with the direction of liquid flow, the improvements which comprise: provision of an aperture extending around a portion of the periphery of the wall of said conduit and providing for insertion of said flexible valve member into said conduit in position confronting said shoulder, and ready removal of the same; said valve member having a mounting portion with a dimension, in the direction of the axis of said conduit, substantially greater than the thickness of said member, said mounting portion contacting the walls defining said aperture; and a hose mounted over the conduit, extending across and in contact with said mounting portion and retaining and sealing the valve in the conduit.
Claim 6
Dependent Claim
146 words
Check valve apparatus of the kind comprising a cylindrical conduit having an internal annular valve-seating shoulder, and a flexible generally circular valve member cooperable therewith to control flow of liquid through the conduit in accordance with the direction of liquid flow, the improvements which comprise: provision of an aperture extending around a portion of the periphery of the wall of said conduit and providing for insertion of said flexible valve member into said conduit in position confronting said shoulder, and ready removal of the same; said valve member having a mounting portion with a dimension, in the direction of the axis of said conduit, substantially greater than the thickness of said member, said mounting portion contacting the walls defining said aperture; and a hose mounted over the conduit, extending across and in contact with said mounting portion and retaining and sealing the valve in the conduit.
Claim 7
Dependent Claim
37 words
Check valve apparatus in accordance with claim 4, and in which said mounting portion included flange means overlying conduit exterior wall portions adjacent said aperture, and said hose extends across and in contact with said flange means.
Claim 8
Dependent Claim
46 words
Check valve apparatus in accordance with claim 4, and in which said flexible valve member, in one dimension, extends across less than the full diameter of said conduit and serves as a restrictor the impedance of which is a function of the direction of liquid flow.
Claim 9
Dependent Claim
43 words
Check valve apparatus in accordance with claim 6, and in which said valve member has an elongated zone of reduced cross section about which it may flex and at least one strengthening rib extending across its face in general parallelism with said zone.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |