Patent US2410632A successfully refreshed from Google Patents.
US3827451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick release valve
Assignee: Eaton Corp
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Filing: 1973-05-21
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Granted: 1974-08-06
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Expires: 1993-05-21
Abstract
Abstract A drive for transmitting torque from a driving to a driven member includes an inflatable member which is adapted to connect the driving and driven members when inflated by a fluid under pressure. The drive includes a valve assembly having an inlet connected to a fluid supply, a first outlet in communication with the inflatable member and a second outlet for venting the inflatable member. The valve assembly has a movable valve member which has a first position for restriciting fluid flow between the inlet and the first and second outlets while providing for fluid communication between the first and second outlets. When fluid is supplied under pressure to the inlet, the valve member has a surface area against which the fluid acts to move the valve member from the first position to a second position. In the second position, the valve member restricts fluid flow between the first and second outlets while providing for fluid communication between the inlet and the first outlet which effects inflation of the inflatable member, resulting in the driving and driven members being drivingly connected thereby. A muffler may be utilized in connection with the second outlet to control the level of noise associated with the operation of the valve.
Inventors
- 👤 E Roob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/04; F16D25/042; F16D25/046; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
401 words
A valve assembly for fluid operated devices comprising: a housing having an inlet, a supply outlet connected to said fluid operated device, an exhaust outlet and a chamber interposed said inlet and said outlets, said housing having an elongate bore interposed said inlet and said chamber and an annular valve seat interposed said chamber and said exhaust outlet, said annular valve seat coaxial with said elongate bore and across said chamber therefrom; a one-piece valve member having a first and second position, said valve member establishing fluid communication between said exhaust outlet and said supply outlet and blocking communication between said outlets and said inlet in said first position and establishing fluid communication between said inlet and said supply outlet and blocking communication between said chamber and said exhaust outlet in said second position, said valve member having a substantially cylindrical portion axially slidable and sealingly engaged in said elongate bore, a tapered portion extending towards said annular valve seat, and a radially extending flanged portion axially interposed said cylindrical and tapered portions, the circumference of said flanged portion slidably and sealingly engaging said chamber, the circumference of said flanged portion sealing said elongate bore from said supply outlet in said first position and communicating said elongate bore and said supply outlet in said second position, said valve member having an axial bore for communication with said inlet and at least one radial bore communicating said axial bore with the surface of said cylindrical section, said radial bore sealed by said elongate bore in said first position and communicating with said chamber when said valve moves towards said second position, said flange thus forming an unopposed area exposed to inlet fluid pressure when said radial bore is in communication with said chamber and said inlet is blocked from said supply outlet to provide more rapid movement of the valve member towards its second position and to prevent said one-piece valve member from moving from said second to said first position as a result of mere momentary fluctuations in inlet fluid pressure, said tapered portion engaging said annular valve seat whereby said exhaust outlet is sealed from said chamber when said one-piece valve member is in said second position, said one-piece valve member biased by fluid pressure in said inlet to move from said first to said second position; and spring biasing means for biasing said valve member to said first position.
Claim 2
Dependent Claim
401 words
A valve assembly for fluid operated devices comprising: a housing having an inlet, a supply outlet connected to said fluid operated device, an exhaust outlet and a chamber interposed said inlet and said outlets, said housing having an elongate bore interposed said inlet and said chamber and an annular valve seat interposed said chamber and said exhaust outlet, said annular valve seat coaxial with said elongate bore and across said chamber therefrom; a one-piece valve member having a first and second position, said valve member establishing fluid communication between said exhaust outlet and said supply outlet and blocking communication between said outlets and said inlet in said first position and establishing fluid communication between said inlet and said supply outlet and blocking communication between said chamber and said exhaust outlet in said second position, said valve member having a substantially cylindrical portion axially slidable and sealingly engaged in said elongate bore, a tapered portion extending towards said annular valve seat, and a radially extending flanged portion axially interposed said cylindrical and tapered portions, the circumference of said flanged portion slidably and sealingly engaging said chamber, the circumference of said flanged portion sealing said elongate bore from said supply outlet in said first position and communicating said elongate bore and said supply outlet in said second position, said valve member having an axial bore for communication with said inlet and at least one radial bore communicating said axial bore with the surface of said cylindrical section, said radial bore sealed by said elongate bore in said first position and communicating with said chamber when said valve moves towards said second position, said flange thus forming an unopposed area exposed to inlet fluid pressure when said radial bore is in communication with said chamber and said inlet is blocked from said supply outlet to provide more rapid movement of the valve member towards its second position and to prevent said one-piece valve member from moving from said second to said first position as a result of mere momentary fluctuations in inlet fluid pressure, said tapered portion engaging said annular valve seat whereby said exhaust outlet is sealed from said chamber when said one-piece valve member is in said second position, said one-piece valve member biased by fluid pressure in said inlet to move from said first to said second position; and spring biasing means for biasing said valve member to said first position.
Claim 3
Dependent Claim
16 words
The valve assembly of claim 1 wherein said exhaust outlet includes a sound muffling device therein.
Claim 4
Dependent Claim
28 words
The valve assembly of claim 2 wherein said sound muffling device comprises at least one perforated baffle arranged normally to the flow of fluid through said exhaust outlet.
Claim 5
Dependent Claim
55 words
The valve of claim 1 additionally comprising a tapered area opposite said flanged area, said tapered area exposed to fluid pressure in said supply outlet, supply outlet fluid pressure acting upon said tapered area being effective to move said valve member from its second to its first position when supply of inlet pressure is interrupted.
Claim 6
Dependent Claim
21 words
The apparatus of claim 1 wherein said second outlet includes a sound muffling device to muffle the sounD of exhausting fluids.
Claim 7
Dependent Claim
39 words
The valve of claim 1 wherein said supply outlet pressure is effective to move said valve member from its second to its first position upon interruption of inlet fluid pressure in the event of failure of said biasing means.
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |