Patent US3583426A successfully refreshed from Google Patents.
US3583426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aseptically sealing valve
Assignee: Alfa Laval AB
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Filing: 1969-04-15
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Granted: 1971-06-08
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Expires: 1989-04-15
Abstract
Abstract A valve body has a closing position in which it makes sealing contact with valve seat means to close the channel therethrough; and in this closing position the valve body and seat means define a chamber surrounding the valve body and separating two areas of sealing contact between the valve body and seat means, the chamber having an inlet and an outlet for a blocking medium such as water vapor. As the valve body moves from the seat means to open the channel, the inlet and outlet for the blocking medium are automatically shut off from communication with the channel.
Inventors
- 👤 Vaclav Feres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
F; F16; F16K; F16K25/00; B; B67; B67C; B67C3/00; B67C3/02; B67C3/22; B67C3/28; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/8593; Y10T137/86928
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
An aseptically sealing shutoff valve comprising valve seat means defining a channel, a valve body movable to a closing position in sealing contact with the seat means to close said channel, the seat means and valve body in said closing position defining a chamber which surrounds the valve body and which separates two areas of sealing contact between the valve body and seat means, said chamber having separate from said channel an inlet and an outlet for a blocking medium, the valve body being movable from the seat means to open said channel, and actuating means responsive to said opening movement of the valve body for effecting a shutting off of communication between the channel and said inlet and outlet.
Claim 2
Dependent Claim
120 words
An aseptically sealing shutoff valve comprising valve seat means defining a channel, a valve body movable to a closing position in sealing contact with the seat means to close said channel, the seat means and valve body in said closing position defining a chamber which surrounds the valve body and which separates two areas of sealing contact between the valve body and seat means, said chamber having separate from said channel an inlet and an outlet for a blocking medium, the valve body being movable from the seat means to open said channel, and actuating means responsive to said opening movement of the valve body for effecting a shutting off of communication between the channel and said inlet and outlet.
Claim 3
Dependent Claim
76 words
A valve according to claim 1, in which said seat means include two parts each coacting with the valve body in its said closing position to provide one of said two sealing contact areas, one of said parts being movable relative to the other part to form said chamber in response to movement of the valve body to said closing position, said acTuating means being operable to effect said shutting off by actuating said movable part.
Claim 4
Dependent Claim
25 words
A valve according to claim 2, in which one of said parts of the seat means is an elastic member connected to the other part.
Claim 5
Dependent Claim
28 words
A valve according to claim 2, in which said actuating means include a spring operable to press said movable part against the other part of the seat means.
Claim 6
Dependent Claim
24 words
A valve according to claim 2, in which said two parts of the seat means are formed by an integral piece of elastic material.
Claim 7
Dependent Claim
96 words
A valve according to claim 1, in which said seat means include two parts each coacting with the valve body in its said closing position to provide one of said two sealing contact areas, one of said parts being movable relative to the other part of the valve body as said body moves to its said closing position, thereby forming said chamber, said actuating means being operable to force said movable part against the other part to form a circumferential seal for effecting said shutting off of communication between the channel and said inlet and outlet.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |