Patent US3837377A successfully refreshed from Google Patents.
US3837377A
Expired / Lapsed
US
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Temperature compensated charging system and process for natural gas and the like
Assignee: Individual
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Filing: 1972-10-10
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Granted: 1974-09-24
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Expires: 1992-10-10
Abstract
Abstract A valve controls communication between a source of pressurized gas and containers which are to be charged with the gas. The valve in turn, is controlled by the pressure of a gas in a reference vessel which is in thermal communication with the containers to be charged. This reference vessel contains a quantity of gas charged into it at a predetermined temperature and pressure. The valve is controlled by the pressure of the reference vessel and the container to be charged such that when a predetermined pressure differential between the two exists, the valve closes communication between the source of gas the the containers.
Inventors
- 👤 Jones R Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:59
CPC Classifications
F; F17; F17D; F17D1/00; F17D1/02; F17B; F17B1/00; F17B1/02; F17B1/12; F17C; F17C13/00; F17C13/04; F17C13/12; F17C5/00; F17C5/002; F17C5/007; F17D1/04; F17C2227/00; F17C2227/04; F17C2227/043; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0379; Y10T137/2496; Y10T137/2559; Y10T137/2562; Y10T137/2564; Y10T137/2567; Y10T137/265; Y10T137/2668; Y10T137/2693; Y10T137/4673; Y10T137/469
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
301 words
A temperature compensated charging system comprising: a. a constant volume container adapted to be charged with a gas from a high pressure source thereof; b. a closed reference vessel within the container containing a predetermined quantity of a gas under pressure and being in thermal communication with the container such that the gas in the reference vessel is at least substantially at the temperature of the bulk of the gas in the container even when the container is being charged with a gas and the pressure of the gas in the reference vessel is a direct function of the temperature therein and, hence, the temperature of the gas in the container, the gas in the reference vessel having at least substantially the same temperature-pressure characteristics as the gas to be charged into the container; c. means for sensing the pressure of the gas in the reference vessel; d. means for sensing the pressure of the gas in the container; e. valve means for selectively communicating the high pressure source of the gas to be charged into the container with the container; f. means responsive to both pressure sensing means to open the valve means and communicate the high pressure source with the interior of the container when there is less than a predetermined pressure differential between the gas in the interior of the container and exterior of the reference vessel on the one hand and interior of the reference vessel on the other and until there is the predetermined pressure differential at which time the responsive means closes the valve means to prevent communication between the container and the high pressure source of the gas; and g. whereby, the amount of gas charged into the container is essentially independent of the temperature thereof and essentially dependent on the predetermined pressure differential.
Claim 2
Dependent Claim
301 words
A temperature compensated charging system comprising: a. a constant volume container adapted to be charged with a gas from a high pressure source thereof; b. a closed reference vessel within the container containing a predetermined quantity of a gas under pressure and being in thermal communication with the container such that the gas in the reference vessel is at least substantially at the temperature of the bulk of the gas in the container even when the container is being charged with a gas and the pressure of the gas in the reference vessel is a direct function of the temperature therein and, hence, the temperature of the gas in the container, the gas in the reference vessel having at least substantially the same temperature-pressure characteristics as the gas to be charged into the container; c. means for sensing the pressure of the gas in the reference vessel; d. means for sensing the pressure of the gas in the container; e. valve means for selectively communicating the high pressure source of the gas to be charged into the container with the container; f. means responsive to both pressure sensing means to open the valve means and communicate the high pressure source with the interior of the container when there is less than a predetermined pressure differential between the gas in the interior of the container and exterior of the reference vessel on the one hand and interior of the reference vessel on the other and until there is the predetermined pressure differential at which time the responsive means closes the valve means to prevent communication between the container and the high pressure source of the gas; and g. whereby, the amount of gas charged into the container is essentially independent of the temperature thereof and essentially dependent on the predetermined pressure differential.
Claim 3
Dependent Claim
108 words
The temperature compensated charging system claimed in claim 1 wherein: a. the valve means includes a housing having a chamber, a first passage into the chamber for supplying gas from the high pressure source thereinto, a second passage into the chamber for discharging gas from the chamber into the container, and a valving element disposed in the chamber for movement therein between an open and a closed position to open and close the second passage to the chamber, respectively; and b. the responsive means is coupled to the valving element and the reference vessel such that the valving element is maintained open until the predetermined value is reached.
Claim 4
Dependent Claim
87 words
The temperature compensated charging system claimed in claim 2 wherein: the responsive means includes a push rod disposed between the valving element and the reference vessel; and the reference pRessure vessel has a pressure responsive element which is positionally responsive to the pressure within the container and the pressure within the reference vessel, the responsive element being coupled to the push rod and the push rod being coupled to the valving element to maintain the valving element in its open position until the predetermined value is reached.
Claim 5
Dependent Claim
31 words
The temperature compensated charging system claimed in claim 3 wherein: a member is included which is carried by the valve means; and the reference pressure vessel is carried by the member.
Claim 6
Dependent Claim
50 words
The temperature compensated charging system claimed in claim 3 wherein the valve means includes biasing means for biasing the valving element into its closed position, the predetermined value being a function of the force of the biasing means, the pressure within the container and the pressure within the reference vessel.
Claim 7
Dependent Claim
27 words
The temperature compensated charging system claimed in claim 3 wherein the pressure responsive element includes a sealed bellows, the sealed bellows containing the predetermined quantity of gas.
Claim 8
Dependent Claim
72 words
The temperature compensated charging system claimed in claim 3 wherein the reference pressure vessel includes a housing having a hollow interior and the pressure responsive element includes a piston disposed for movement within the hollow interior of the housing and dividing such hollow interior into a first and a second chamber, the first chamber being adapted for pressure communication with the container and the second chamber containing the predetermined quantity of gas.
Claim 9
Dependent Claim
29 words
The temperature compensated charging system claimed in claim 3 wherein means are provided for effecting a discrete amount of movement of the pressure responsive element at the predetermined value.
Claim 10
Dependent Claim
248 words
For use in charging a predetermined quantity of a gas into a constant volume, pressurized container from a high pressure source of the gas regardless of temperature, a temperature compensated charging system comprising: a. the container; b. a valve mounted on the container and having means for communication with the source of high pressure gas, the valve having an open position for gas passage into and out of the container and a closed position for preventing gas passage into and out of the container; c. a closed reference pressure vessel within the container, the reference pressure vessel containing a predetermined quantity of gas under pressure and being in thermal communication with the container such that the temperature within the reference pressure vessel is essentially the same as the temperature of the bulk of the gas in the container even during charging of the container with the gas from the high pressure source thereof, the gas in the reference pressure vessel having at least substantially the same pressure-temperature characteristics as the gas to be charged into the container; d. means for sensing the pressure of the gas in the container relative to the pressure of the gas in the reference pressure vessel; and e. means responsive to the sensing means to maintain the valve in its open position until a predetermined pressure differential between the gas in the container and the gas in the reference pressure vessel exists and to close the valve when the predetermined pressure differential exists.
Claim 11
Dependent Claim
248 words
For use in charging a predetermined quantity of a gas into a constant volume, pressurized container from a high pressure source of the gas regardless of temperature, a temperature compensated charging system comprising: a. the container; b. a valve mounted on the container and having means for communication with the source of high pressure gas, the valve having an open position for gas passage into and out of the container and a closed position for preventing gas passage into and out of the container; c. a closed reference pressure vessel within the container, the reference pressure vessel containing a predetermined quantity of gas under pressure and being in thermal communication with the container such that the temperature within the reference pressure vessel is essentially the same as the temperature of the bulk of the gas in the container even during charging of the container with the gas from the high pressure source thereof, the gas in the reference pressure vessel having at least substantially the same pressure-temperature characteristics as the gas to be charged into the container; d. means for sensing the pressure of the gas in the container relative to the pressure of the gas in the reference pressure vessel; and e. means responsive to the sensing means to maintain the valve in its open position until a predetermined pressure differential between the gas in the container and the gas in the reference pressure vessel exists and to close the valve when the predetermined pressure differential exists.
Claim 12
Dependent Claim
65 words
The temperature compensated charging system claimed in claim 9 wherein: a. a hollow member is provided, the member depending from the valve into the interior of the container; b. the reference pressure vessel is carried by the hollow member; and c. the interior of the hollow member is in gas communication with the valve in the latter''s open position and the interior of the container.
Claim 13
Dependent Claim
61 words
The temperature compensated charging system claimed in claim 10 wherein the reference pressure vessel is disposed in a housing which in turn is carried by the hollow member, the responsive means including a push rod within the hollow member and coupling the reference pressure vessel with the valve to maintain the valve in its open position until the predetermined pressure exists.
Claim 14
Dependent Claim
23 words
The temperature compensated charging system claimed in claim 11 wherein the responsive means includes means to bias the valve into its closed position.
Claim 15
Dependent Claim
146 words
A process for charging a predetermined quantity of a charge gas into a container regardless of container temperature comprising the steps of: a. sensing the pressure of a given amount of reference gas in a reference vessel which reference gas has at least substantially the same temperature and characteristics as the charge gas; b. charging the charge gas into the container from a high pressure source thereof under a condition where the reference gas is in thermal communication with the charge gas in the container and the temperature of the charge gas in the container and the temperature of the reference gas are essentially equal; c. sensing the pressure of the charge gas in the container; and d. terminating the charging of the charge gas into the container when there is a predetermined pressure differential between the charge gas in the container and the reference gas.
Claim 16
Dependent Claim
146 words
A process for charging a predetermined quantity of a charge gas into a container regardless of container temperature comprising the steps of: a. sensing the pressure of a given amount of reference gas in a reference vessel which reference gas has at least substantially the same temperature and characteristics as the charge gas; b. charging the charge gas into the container from a high pressure source thereof under a condition where the reference gas is in thermal communication with the charge gas in the container and the temperature of the charge gas in the container and the temperature of the reference gas are essentially equal; c. sensing the pressure of the charge gas in the container; and d. terminating the charging of the charge gas into the container when there is a predetermined pressure differential between the charge gas in the container and the reference gas.
References Cited (Backward Citations)
US3211175A
Cited
US3232485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |