US3870066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aseptic vacuum breaker
Assignee: AVOSET CORP 5700 STONERIDGE MALL RD PLEASANTON CA A CORP OF
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Filing: 1973-11-21
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Granted: 1975-03-11
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Expires: 1993-11-21
Abstract
Abstract An aseptic vacuum breaker has a hollow valve body having an internal valve seat with a valve plug urged away from said seat by gravity and stop means to limit said movement. The valve body has an opening below the valve plug and an opening above the valve seat. An adapter conduit is removably joined to the lower end of the valve body and a cover overlies the valve body and is joined to the lower end of the valve body. The joint between the adapter conduit and the valve body, the joint between the cover and the valve body and the joint between the cover and the adapter conduit are blanketed with an aseptic gas or liquid and the interior of the cover is supplied with an aspectic gas which flows to the opening in the valve body above the valve seat.
Inventors
- 👤 Walter R Jurasek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:23
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/06; E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/108; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/4238; Y10T137/4245; Y10T137/4266; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7871
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
148 words
An aseptic vacuum breaker comprising: a hollow valve body having an internal valve seat, a valve plug urged away from said seat by gravity, means to limit the movement of said valve plug away from said seat to a predetermined distance, said valve body having a lower opening below the valve seat and an upper opening above the valve seat, an adapter conduit removably joined to the lower end of the valve body and communicating with the interior of the valve body, a cover overlying the valve body, removably joined to the lower end of the valve body, spaced from the upper opening of the valve body, and having an opening to connect the interior thereof to the atmosphere, means to blanket the joint between the adapter conduit and the cover with an aseptic fluid, and means to supply the interior of the cover with an aseptic gas.
Claim 2
Dependent Claim
148 words
An aseptic vacuum breaker comprising: a hollow valve body having an internal valve seat, a valve plug urged away from said seat by gravity, means to limit the movement of said valve plug away from said seat to a predetermined distance, said valve body having a lower opening below the valve seat and an upper opening above the valve seat, an adapter conduit removably joined to the lower end of the valve body and communicating with the interior of the valve body, a cover overlying the valve body, removably joined to the lower end of the valve body, spaced from the upper opening of the valve body, and having an opening to connect the interior thereof to the atmosphere, means to blanket the joint between the adapter conduit and the cover with an aseptic fluid, and means to supply the interior of the cover with an aseptic gas.
Claim 3
Dependent Claim
18 words
A device in accordance with claim 1 in which the second mentioned means employs a blanket of steam.
Claim 4
Dependent Claim
20 words
A device in accordance with claim 2 in which the aseptic fluid supplied by the last mentioned means is steam.
Claim 5
Dependent Claim
16 words
A device in accordance with claim 1 in which the blanketing means includes a peripheral passage.
Claim 6
Dependent Claim
27 words
A device in accordance with claim 1 in which the blanketing means additionally blankets the joint between the cover and the valve body with an aseptic fluid.
Claim 7
Dependent Claim
146 words
An aseptic vacuum breaker comprising: a hollow valve body having an internal valve seat, a valve plug urged away from said seat by gravity, means to limit the movement of said valve plug away from said seat to a predetermined distance, said valve body having a lower opening below the valve seat and an upper opening above the valve seat, an adapter conduit removably joined to the lower end of the valve body and communicating with the interior of the valve body, a cover overlying the valve body, removably joined to the lower end of the valve body, and spaced from the upper opening of the valve body, means to blanket the joint between the adapter conduit and the cover with an aseptic fluid, and means including a conduit communicating with the interior of the cover to supply aseptic air to the interior of the cover.
Claim 8
Dependent Claim
146 words
An aseptic vacuum breaker comprising: a hollow valve body having an internal valve seat, a valve plug urged away from said seat by gravity, means to limit the movement of said valve plug away from said seat to a predetermined distance, said valve body having a lower opening below the valve seat and an upper opening above the valve seat, an adapter conduit removably joined to the lower end of the valve body and communicating with the interior of the valve body, a cover overlying the valve body, removably joined to the lower end of the valve body, and spaced from the upper opening of the valve body, means to blanket the joint between the adapter conduit and the cover with an aseptic fluid, and means including a conduit communicating with the interior of the cover to supply aseptic air to the interior of the cover.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |