Patent US1681944A successfully refreshed from Google Patents.
Patent US3625249A successfully refreshed from Google Patents.
US3625249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eccentric damper-type valve for controlled action
Assignee: Individual
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Filing: 1970-02-26
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Granted: 1971-12-07
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Expires: 1990-02-26
Abstract
Abstract An eccentric damper-type valve disposed across a flow line and which is adapted to open under pressure of the flow on the larger of the two uneven sections of the valve on either side of the valve shaft, whereby the total upstream pressure on the valve being unequal on the opposite sides of the shaft, the resulting differential of pressures enables manual or mechanical (automatic or not) operation of the valve with a lower expenditure of force than would be required under comparable conditions, to open or otherwise operate a completely unbalanced check valve.
Inventors
- 👤 James F Karr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:15
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/01; F16K15/00; F16K15/02; F16K15/03; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7837; Y10T137/7898; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692; Y10T137/877; Y10T137/87708
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
90 words
An eccentric damper-type valve for controlled action comprising: a resilient ring seat disposed transversely in a passage for flow of fluid through the opening in said seat, a rotational shaft extending on an axis transverse to and offset from the axis of the opening in the ring seat, a valve vane of a size to close said seat opening in the ring seat to shut off flow in said passage, and said shaft extending from the vane with unequal portions of the latter on opposite sides of the shaft axis.
Claim 2
Dependent Claim
90 words
An eccentric damper-type valve for controlled action comprising: a resilient ring seat disposed transversely in a passage for flow of fluid through the opening in said seat, a rotational shaft extending on an axis transverse to and offset from the axis of the opening in the ring seat, a valve vane of a size to close said seat opening in the ring seat to shut off flow in said passage, and said shaft extending from the vane with unequal portions of the latter on opposite sides of the shaft axis.
Claim 3
Dependent Claim
24 words
A valve according to claim 1 including an operating lever connected to said shaft for moving the valve vane between opened and closed positions.
Claim 4
Dependent Claim
73 words
A valve according to claim 2, in combination with: a similar, second eccentric damper-type valve located transversely in a second passage offset from and parallel to the first-mentioned passage and similarly provided with an operative lever, the axes of the two rotational shafts being parallel, and means interconnecting the operating levers of said two valves whereby upon operative movement of the vane of one valve, the vane of the other valve is moved.
Claim 5
Dependent Claim
33 words
The valve combination according to claim 3 in which the mentioned lever-connecting means comprises dashpot-controlled linkage to control the movement of one valve vane relative to the movement of the other valve vane.
Claim 6
Dependent Claim
57 words
The valve combination according to claim 4 in which the mentioned linkage comprises: a fluid-bypassing plunger pivotally connected to one of said operating levers, and a cylinder in which said plunger operates and containing the fluid which is bypassed from one side of the plunger to the other side causing the mentioned relative movements of valve vane.
Claim 7
Dependent Claim
31 words
A valve according to claim 2 in combination with: a fixed bracket, and dashpot means interconnecting the operating lever and said bracket for controlling the operative movement of the valve vane.
Claim 8
Dependent Claim
59 words
A valve combination according to claim 6 in which the dashpot means comprises: a fluid-bypassing plunger, and a cylinder in which said plunger operates and contains the fluid which is bypassed from one side of the plunger to the other side, said plunger and cylinder being each pivotally connected, one to the lever and the other to the bracket.
Claim 9
Dependent Claim
23 words
A valve combination according to claim 7 in which the plunger is pivotally connected to the lever and the cylinder to the bracket.
Claim 10
Dependent Claim
21 words
A valve combination according to claim 7 in which the bracket is adjustedly mounted for regulation of the valve vane movement.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |