US3586042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary valve for viscous materials
Assignee: GEN IND Inc
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Filing: 1969-04-16
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Granted: 1971-06-22
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Expires: 1989-04-16
Abstract
Abstract A gate or plug-type of valve including a housing and pipe connections, said housing having a chamber open at one side thereof and closed at the other side, and a gate or plug in said chamber, means for moving said plug axially to open and close the valve, the axis of the chamber and of the plug being coaxial and at an inclination with respect to the axis of the pipe connections and to the flow of the material therein.
Inventors
- 👤 Wilfred J Grenier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/22; F16K3/24; Y; Y10; Y10T; Y10T137/00; Y10T137/794; Y10T137/8013
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
A sanitary valve comprising a housing having a chamber therein open at one end thereof and closed at the other end, an axially aligned inlet and outlet comprising a through passage, a valve member movable in said chamber for closing and opening the valve, means for moving said valve member to open and close the same, said chamber and valve member being generally coaxial along an axis at an inclination with respect to the through passage and path of motion of the material to be conveyed through the valve, said valve member being a plug having a free bottom area, the valve housing having a portion receiving the bottom of said plug in slightly spaced relationship with respect thereto when the valve is closed as respects the downstream side of the valve, thus forming a chamber in the bottom of the valve, said chamber being always open and in communication with respect to the upstream side of the valve.
Claim 2
Dependent Claim
159 words
A sanitary valve comprising a housing having a chamber therein open at one end thereof and closed at the other end, an axially aligned inlet and outlet comprising a through passage, a valve member movable in said chamber for closing and opening the valve, means for moving said valve member to open and close the same, said chamber and valve member being generally coaxial along an axis at an inclination with respect to the through passage and path of motion of the material to be conveyed through the valve, said valve member being a plug having a free bottom area, the valve housing having a portion receiving the bottom of said plug in slightly spaced relationship with respect thereto when the valve is closed as respects the downstream side of the valve, thus forming a chamber in the bottom of the valve, said chamber being always open and in communication with respect to the upstream side of the valve.
Claim 3
Dependent Claim
35 words
The valve of claim 1 wherein the plug is movable to fill the chamber at its free bottom area, forcing material in the chamber out of the chamber into the upstream side of the valve.
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |