Patent US3727651A successfully refreshed from Google Patents.
US3727651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable high volume gas supply system
Assignee: Individual
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Filing: 1971-03-17
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Granted: 1973-04-17
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Expires: 1991-03-17
Abstract
Abstract There is provided a mobile system for dispensing a gas generated as a consequence of vaporization of a cryogenic fluid at high volumetric flow rates and at temperatures approaching ambient. The system consists of a cart-mounted container for a cryogenic fluid and a gas dispensing system having, as a part thereof, a contained and protected primary heat transfer coil secured to a secondary heat transfer surface which is a part of the cart.
Inventors
- 👤 R Biever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:59
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2205/00; F17C2205/01; F17C2205/0103; F17C2205/0153; F17C2205/0157; F17C2205/0161; F17C2205/0165; F17C2221/00; F17C2221/01; F17C2221/014; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
131 words
A mobile system for providing a self-contained supply of gas at high volumetric flow rates and elevated pressures which comprises a mobile cart containing: a. means for producing a supply of gas at an elevated pressure and at a temperature below ambient; said supply of gas generated by vaporization of a cryogenic fluid; b. a gas heating system in communicating connection with the gas producing means, said system including a primary heat transfer coil secured in heat transfer relation to a secondary heat transfer surface, said secondary heat transfer surface enclosing at least part of said primary heat transfer coil; and c. a gas distribution system in connecting communication with the outlet of said gas heating system, said gas distribution system adapted to be connected to a pressurized gas receiving vessel.
Claim 2
Dependent Claim
131 words
A mobile system for providing a self-contained supply of gas at high volumetric flow rates and elevated pressures which comprises a mobile cart containing: a. means for producing a supply of gas at an elevated pressure and at a temperature below ambient; said supply of gas generated by vaporization of a cryogenic fluid; b. a gas heating system in communicating connection with the gas producing means, said system including a primary heat transfer coil secured in heat transfer relation to a secondary heat transfer surface, said secondary heat transfer surface enclosing at least part of said primary heat transfer coil; and c. a gas distribution system in connecting communication with the outlet of said gas heating system, said gas distribution system adapted to be connected to a pressurized gas receiving vessel.
Claim 3
Dependent Claim
18 words
A mobile gas supply system as claimed in claim 1 in which the cryogenic fluid is liquid nitrogen.
Claim 4
Dependent Claim
46 words
A mobile gas supply system as claimed in claim 1 in which said gas heating system is contained within a control housing mounted on said cart, the primary heat transfer coil of said gas heating system secured to at least one inner surface of said housing.
Claim 5
Dependent Claim
34 words
A mobile gas supply system as claimed in claim 3 of which said housing is open at the upper and lower ends thereof to permit a convective flow of ambient air through said housing.
Claim 6
Dependent Claim
95 words
A mobile gas supply system as claimed in claim 4 in which the primary heat transfer coil is further secured to a second ribbed heat conductive surface parallel to the inner surface of the housing to which the primary heat transfer coil is secured, the ribs of said second heat transfer surface being parallel and secured to the surface of the primary heat transfer coil opposed to the inner surface of said housing to which the primary heat transfer coil is secured to provide conductive and convective heat transfer to said primary heat transfer coil.
Claim 7
Dependent Claim
48 words
A mobile gas supply system as claimed in claim 1 in which the gas distribution system comprises a plurality of spring biased reel mounted pressure hoses manifolded in connecting communication to the outlet of said primary heat transfer coil, the housing adapted to couple to a pressurizable receptacle.
Claim 8
Dependent Claim
141 words
A mobile system for providing a self-contained supply of gas at high volumetric flow rates and elevated pressures which comprises a mobile cart containing: a. means for producing a supply of gas at an elevated pressure and at a temperature below ambient, said supply of gas generated by vaporization of a cryogenic fluid; b. a primary heat transfer coil in connectIng communication to the outlet of said means for producing a supply of gas, said primary heat transfer coil secured in heat transfer relation to at least one inner surface of a cart mounted housing; c. a gas distribution system comprising a manifold in connecting communication with the outlet of the primary heat transfer coil, the outlet of said manifold, in turn, being in connecting communication with a plurality of spring biased reel mounted hoses adapted to couple to pressurizable receptacle.
Claim 9
Dependent Claim
141 words
A mobile system for providing a self-contained supply of gas at high volumetric flow rates and elevated pressures which comprises a mobile cart containing: a. means for producing a supply of gas at an elevated pressure and at a temperature below ambient, said supply of gas generated by vaporization of a cryogenic fluid; b. a primary heat transfer coil in connectIng communication to the outlet of said means for producing a supply of gas, said primary heat transfer coil secured in heat transfer relation to at least one inner surface of a cart mounted housing; c. a gas distribution system comprising a manifold in connecting communication with the outlet of the primary heat transfer coil, the outlet of said manifold, in turn, being in connecting communication with a plurality of spring biased reel mounted hoses adapted to couple to pressurizable receptacle.
Claim 10
Dependent Claim
18 words
A mobile gas supply system as claimed in claim 7 in which the cryogenic fluid is liquid nitrogen.
Claim 11
Dependent Claim
33 words
A mobile gas supply system as claimed in claim 8 in which said housing is open at the upper and lower ends thereof to permit a flow of ambient air through said housing.
Claim 12
Dependent Claim
73 words
A mobile gas supply system as claimed in claim 9 in which the primary heat transfer coil is further secured to a second ribbed heat conductive surface parallel to the inner surface of the housing to which the primary heat transfer coil is secured, the ribs of said second heat transfer surface being parallel and secured to the wall of said primary heat transfer coil opposed to the inner surface of said housing.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |