Patent US4368756A successfully refreshed from Google Patents.
US4368756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check valve
Assignee: CLAYTON MARK Inc
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Filing: 1981-01-12
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Granted: 1983-01-18
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Expires: 2001-01-12
Abstract
Abstract A guide for a poppet in a check valve includes an annular, cylindrical rim and a guide hub concentric therewith. At least one web extends radially from the guide hub to the rim. The outer periphery of the rim includes at least one projection defined at a position angularly spaced from the web. The projection is engaged by the inner periphery of the check valve such that the guide is held within the check valve, with a stem on the poppet extending through the guide hub. The guide hub includes at least one lug to engage the stem to prevent rotation of the stem relative to the check valve. The guide is formed of a smooth bearing material, and the rim thereof is capable of flexing, in the area where the projections are provided.
Inventors
- 👤 Donald E. Carlson, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:03
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7931; Y10T137/7932; Y10T137/7933; Y10T137/7934
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
239 words
A valve for controlling fluid flow in a fluid system comprising: an elongated body including an internal bore and a fluid inlet and a fluid outlet in fluid communication with said bore; a valve seat defined by said bore; a valve element adapted to move longitudinally in said bore and to engage said valve seat in the valve closed condition, said valve element including a valve stem; and means for guiding the longitudinal movement of said valve stem in said bore, said guiding means including a continuous annular flexible rim adapted to be inserted in said bore and to be frictionally engaged thereby, said rim having axially spaced first and second ends, a guide hub for encircling said stem, and a plurality of circumferentially spaced radial webs extending from said hub to said rim, said webs being disposed between the first and second ends of said rim, said rim having a predetermined effective outer diameter that is larger than the effective inner diameter of said bore prior to insertion of said guiding means into said bore to define an interference fit therebetween, the engagement between said bore and said rim cooperating to deform said rim inwardly in a portion thereof spaced angularly from said radial webs to retain said guiding means against movement relative to said bore, said webs remaining substantially undeformed so as to retain said guide hub in position to receive the stem of said valve element.
Claim 2
Dependent Claim
239 words
A valve for controlling fluid flow in a fluid system comprising: an elongated body including an internal bore and a fluid inlet and a fluid outlet in fluid communication with said bore; a valve seat defined by said bore; a valve element adapted to move longitudinally in said bore and to engage said valve seat in the valve closed condition, said valve element including a valve stem; and means for guiding the longitudinal movement of said valve stem in said bore, said guiding means including a continuous annular flexible rim adapted to be inserted in said bore and to be frictionally engaged thereby, said rim having axially spaced first and second ends, a guide hub for encircling said stem, and a plurality of circumferentially spaced radial webs extending from said hub to said rim, said webs being disposed between the first and second ends of said rim, said rim having a predetermined effective outer diameter that is larger than the effective inner diameter of said bore prior to insertion of said guiding means into said bore to define an interference fit therebetween, the engagement between said bore and said rim cooperating to deform said rim inwardly in a portion thereof spaced angularly from said radial webs to retain said guiding means against movement relative to said bore, said webs remaining substantially undeformed so as to retain said guide hub in position to receive the stem of said valve element.
Claim 3
Dependent Claim
34 words
The valve claimed in claim 1 wherein said guiding means further comprises at least one pair of projections defined on the outer periphery of said rim and diametrically opposed from one of said webs.
Claim 4
Dependent Claim
33 words
The valve claimed in claim 2 wherein said body further includes at least one rib defined on the periphery of said bore, said rib engaging said rim between said one pair of projections.
Claim 5
Dependent Claim
36 words
The valve claimed in claim 1 further comprising at least one projection defined on the outer periphery of said rim at a position angularly spaced from the point of joining of said webs and said rim.
Claim 6
Dependent Claim
36 words
The valve claimed in claim 4 wherein said bore includes at least one radial rib defined on the inner periphery thereof, said rib engaging said rim of said guide means at a point adjacent said projection.
Claim 7
Dependent Claim
58 words
The valve claimed in claim 1 wherein said valve stem is of a polygonal cross-sectional configuration and said hub includes at least one lug defined on the inner peripheral surface thereof and longitudinally extending along at least a portion of said hub, said lug engaging a side of said stem upon insertion of said stem through said hub.
Claim 8
Dependent Claim
38 words
The valve claimed in claim 6 wherein said hub is a hollow generally cylindrical member having an inner diameter larger than the cross-sectional dimension of said stem thereby providing a loose fit of said stem in said hub.
Claim 9
Dependent Claim
37 words
The valve set forth in claim 1 wherein said stem is of a polygonal configuration, said hub includes at least one lug defined on the inner peripheral surface thereof for engaging a side of said valve stem.
Claim 10
Dependent Claim
215 words
A valve for controlling fluid flow in a fluid system comprising: an elongated body including an internal bore and a fluid inlet and a fluid outlet in fluid communication with said bore, said body having at least one rib defined on the periphery of said bore; a valve seat defined in said bore; a valve element adapted to move longitudinally in said bore and to engage said valve seat in the valve closed condition, said valve element including a valve stem; and means for guiding the longitudinal movement of said valve stem in said bore, said guiding means including an annular flexible rim adapted to be inserted in said bore and to be frictionally engaged thereby, a guide hub for encircling said stem, and at least one radial web extending from said hub to said rim, at least one pair of projections defined on the outer periphery of said rim and diametrically opposed from one of said webs, said rib on said body engaging said rib between said one pair of projections, the effective outer diameter of said rim being larger than the effective inner diameter of said bore to define an interference fit therebetween, said bore thereby being effective to deform said rim to retain said guiding means against movement relative to said bore.
Claim 11
Dependent Claim
215 words
A valve for controlling fluid flow in a fluid system comprising: an elongated body including an internal bore and a fluid inlet and a fluid outlet in fluid communication with said bore, said body having at least one rib defined on the periphery of said bore; a valve seat defined in said bore; a valve element adapted to move longitudinally in said bore and to engage said valve seat in the valve closed condition, said valve element including a valve stem; and means for guiding the longitudinal movement of said valve stem in said bore, said guiding means including an annular flexible rim adapted to be inserted in said bore and to be frictionally engaged thereby, a guide hub for encircling said stem, and at least one radial web extending from said hub to said rim, at least one pair of projections defined on the outer periphery of said rim and diametrically opposed from one of said webs, said rib on said body engaging said rib between said one pair of projections, the effective outer diameter of said rim being larger than the effective inner diameter of said bore to define an interference fit therebetween, said bore thereby being effective to deform said rim to retain said guiding means against movement relative to said bore.
Claim 12
Dependent Claim
225 words
A valve for controlling fluid flow in a fluid system comprising: an elongated body including an internal bore and a fluid inlet and a fluid outlet in fluid communication with said bore, said bore having at least one radial rib defined on the inner periphery thereof; a valve seat defined in said bore; a valve element adapted to move longitudinally in said bore and to engage said valve seat in the valve closed condition, said valve element including a valve stem; and means for guiding the longitudinal movement of said valve stem in said bore, said guiding means including an annular flexible rim adapted to be inserted in said bore and to be frictionally engaged thereby, a guide hub for encircling said stem, and at least one radial web extending from said hub to said rim, at least one projection defined on the outer periphery of said rim at a position angularly spaced from the point of joining of said web and said rim, said rib on said bore engaging said rim of said guide means at a point adjacent said projection, the effective outer diameter of said rim being larger than the effective inner diameter of said bore to define an interference fit therebetween said bore thereby being effective to deform said rim to retain said guiding means against movement relative to said bore.
Claim 13
Dependent Claim
225 words
A valve for controlling fluid flow in a fluid system comprising: an elongated body including an internal bore and a fluid inlet and a fluid outlet in fluid communication with said bore, said bore having at least one radial rib defined on the inner periphery thereof; a valve seat defined in said bore; a valve element adapted to move longitudinally in said bore and to engage said valve seat in the valve closed condition, said valve element including a valve stem; and means for guiding the longitudinal movement of said valve stem in said bore, said guiding means including an annular flexible rim adapted to be inserted in said bore and to be frictionally engaged thereby, a guide hub for encircling said stem, and at least one radial web extending from said hub to said rim, at least one projection defined on the outer periphery of said rim at a position angularly spaced from the point of joining of said web and said rim, said rib on said bore engaging said rim of said guide means at a point adjacent said projection, the effective outer diameter of said rim being larger than the effective inner diameter of said bore to define an interference fit therebetween said bore thereby being effective to deform said rim to retain said guiding means against movement relative to said bore.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-17 | 1986-07-19 | 1987-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-17 | 1990-07-19 | 1991-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-17 | 1994-07-19 | 1995-01-18 | $7700.00 | Window Closed / Lapsed |