Patent US1674439A successfully refreshed from Google Patents.
Patent US3743245A successfully refreshed from Google Patents.
US3743245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cam axially actuated diaphragm valve
Assignee: TE Connectivity Corp
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Filing: 1971-12-10
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Granted: 1973-07-03
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Expires: 1991-12-10
Abstract
Abstract A rotary cam axially actuated diaphragm valve having a rotating valve stem adapter and a valve stem splined thereto. The valve stem is in abutting relationship with a cam on its upper surfaces, and in abutting relationship with a pressure pad on its lower surface. Similarily, the pressure pad is in abutting relationship with a diaphragm on its lower surface, the diaphragm controlling the flow of fluid through the valve; a brass spacer separates the valve stem from the diaphragm. Upon rotation of the valve stem adapter and its splined valve stem, the valve stem contacts the cam which forces the valve stem in an axially downward direction, the axial movement of the stem forcing the non-rotating pressure pad to also move in an axial downward direction, such axial movement of the pad sequentially moving the non-rotating diaphragm in an axial downward direction until closure of the valve is attained. Further rotation of the valve stem adapter and valve stem permits recession of the camming force with a consequent movement of the various components in an axially upward direction and the ultimate opening of the valve to its original fully open position.
Inventors
- 👤 H Demler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:34
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/16; F16K31/00; F16K31/44; F16K31/52; F16K31/524; F16K31/52491
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
317 words
A cam-operated diaphragm valve assembly comprising: a. a valve body having inlet and outlet passageways interconnected by a perpendicularly oriented tubular passageway, said tubular passageway having an edge portion thereon, b. a non-rotating, flexible diaphragm having an upstanding stem portion and a radial flange positioned adjacent said edge portion; c. a non-rotating, axially movable pressure pad positioned on top of said diaphragm, said pad having an upstanding stem, a downwardly opening recess for receiving said stem portion of said diaphragm and a radial flange for abutting said flange on said diaphragm; d. a rotatable and axially movable valve stem positioned on top of said pressure pad and having an upstanding stem, downwardly opening recess for receiving said stem on said pressure pad, and further having a radially extending camming surfaces consisting of diametrically opposed raised portions, diametrically opposed lower portions, and inclined portions coNnecting said raised portions to said lower portions; e. spacer means positioned between said diaphragm and said valve stem for preventing direct contact thereinbetween; f. a cylindrical cam positioned in said tubular passageway in overlying relation to said diaphragm, pressure pad and valve stem, said cam having an opening to admit said stem on said valve stem therethrough and further having, internally thereof and in registration with said camming surfaces on said valve stem camming surfaces consisting of diametrically opposed raised portions, diametrically opposed lower portions and inclined portions connecting said raised portions to said lower portions; g. rotating means positioned on said stem on said valve stem for rotating said valve stem so that said camming surfaces on said valve stem and on said cylindrical cam cooperate to move said valve stem axially against said pressure pad which then pushes said radial flange on said diaphragm into sealing engagement with said edge portion in said tubular passageway or away from said pressure pad which permits communication between saId inlet and said outlet passageway.
Claim 2
Dependent Claim
317 words
A cam-operated diaphragm valve assembly comprising: a. a valve body having inlet and outlet passageways interconnected by a perpendicularly oriented tubular passageway, said tubular passageway having an edge portion thereon, b. a non-rotating, flexible diaphragm having an upstanding stem portion and a radial flange positioned adjacent said edge portion; c. a non-rotating, axially movable pressure pad positioned on top of said diaphragm, said pad having an upstanding stem, a downwardly opening recess for receiving said stem portion of said diaphragm and a radial flange for abutting said flange on said diaphragm; d. a rotatable and axially movable valve stem positioned on top of said pressure pad and having an upstanding stem, downwardly opening recess for receiving said stem on said pressure pad, and further having a radially extending camming surfaces consisting of diametrically opposed raised portions, diametrically opposed lower portions, and inclined portions coNnecting said raised portions to said lower portions; e. spacer means positioned between said diaphragm and said valve stem for preventing direct contact thereinbetween; f. a cylindrical cam positioned in said tubular passageway in overlying relation to said diaphragm, pressure pad and valve stem, said cam having an opening to admit said stem on said valve stem therethrough and further having, internally thereof and in registration with said camming surfaces on said valve stem camming surfaces consisting of diametrically opposed raised portions, diametrically opposed lower portions and inclined portions connecting said raised portions to said lower portions; g. rotating means positioned on said stem on said valve stem for rotating said valve stem so that said camming surfaces on said valve stem and on said cylindrical cam cooperate to move said valve stem axially against said pressure pad which then pushes said radial flange on said diaphragm into sealing engagement with said edge portion in said tubular passageway or away from said pressure pad which permits communication between saId inlet and said outlet passageway.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |