US3731845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for dispensing chilled carbonated water
Assignee: Individual
•
Filing: 1970-11-23
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Granted: 1973-05-08
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Expires: 1990-11-23
Abstract
Abstract A carbonation unit in a closed loop including a circulation pump, dispensing valves, a restrictor and a pressure regulated source of fresh makeup water with a float contolled inlet to the carbonation unit, which is normally restricted as carbonated water within the unit approaches a predetermined level. A bypass valve across the pump is open o recirculate water within the pump when the carbonation unit inlet becomes restricted. Water withdrawal from the carbonator through the dispenser valves opens the inlet for increased flow to the carbonator accompanied by a pressure drop to close the pump bypass valve. Pump suction drops the pressure across the restrictor to draw makeup water into the loop.
Inventors
- 👤 J Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:53
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/0042; B67D1/0057; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/236; B01F23/2363
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
209 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure including a ''''T'''' connection one output of which is connected to a large float control inlet of said carbonator through a non-restricted conduit, the other outlet of which is connected to a small bypass inlet of said carbonator through a highly restricted conduit; a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenser to said pump, the output of said pump being connected to the input of said ''''T'''' connection to continuously supply a small flow of water into said carbonator through said small bypass inlet and a large flow of water into said carbonator through said float control inlet, upon actuation of a float within said carbonator, a restrictor in said loop at the suction side of said pump; a makeup water supply line connected into said loop at a point between said restrictor and said pump; and a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said carbonator.
Claim 2
Independent Claim
209 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure including a ''''T'''' connection one output of which is connected to a large float control inlet of said carbonator through a non-restricted conduit, the other outlet of which is connected to a small bypass inlet of said carbonator through a highly restricted conduit; a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenser to said pump, the output of said pump being connected to the input of said ''''T'''' connection to continuously supply a small flow of water into said carbonator through said small bypass inlet and a large flow of water into said carbonator through said float control inlet, upon actuation of a float within said carbonator, a restrictor in said loop at the suction side of said pump; a makeup water supply line connected into said loop at a point between said restrictor and said pump; and a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said carbonator.
Claim 3
Independent Claim
139 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level float controlled inlet structure including a valve seat having a controlled leak; a pump connected in a closed loop leading from said carbonator to a disenser and from said dispenser to said pump to produce a continuous circulation of water through the controlled lead in said valve seat; a restrictor in said loop at the suction side of said pump; a makeup water supply line connected into said loop at a point between said restrictor and said pump; and a water pressure regulator in said supply line to supply make up water at a pressure less than the operating pressure of said carbonator and said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said carbonator.
Claim 4
Independent Claim
139 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level float controlled inlet structure including a valve seat having a controlled leak; a pump connected in a closed loop leading from said carbonator to a disenser and from said dispenser to said pump to produce a continuous circulation of water through the controlled lead in said valve seat; a restrictor in said loop at the suction side of said pump; a makeup water supply line connected into said loop at a point between said restrictor and said pump; and a water pressure regulator in said supply line to supply make up water at a pressure less than the operating pressure of said carbonator and said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said carbonator.
Claim 5
Independent Claim
159 words
A system for cIrculating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure, a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenser to said pump, a restrictor in said loop at the suction side of said pump, a makeup water supply line connected into said loop at a point between said restrictor and said pump, a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said carbonator, and said inlet structure comprises flow structure including a float and float seat completely closed when the water level in said carbonator reaches a predetermined level and further comprises a structure forming a restricted bypass flow channel for continuous circulation of carbonated water through said loop.
Claim 6
Independent Claim
159 words
A system for cIrculating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure, a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenser to said pump, a restrictor in said loop at the suction side of said pump, a makeup water supply line connected into said loop at a point between said restrictor and said pump, a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said carbonator, and said inlet structure comprises flow structure including a float and float seat completely closed when the water level in said carbonator reaches a predetermined level and further comprises a structure forming a restricted bypass flow channel for continuous circulation of carbonated water through said loop.
Claim 7
Independent Claim
121 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure closable except for a controlled leak therethrough, a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenmer to said pump, a restrictor in said loop at the suction side of said pump, a makeup water supply line connected into said loop at a point between said restrictor and said pump, and a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said c8rbonator.
Claim 8
Independent Claim
121 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure closable except for a controlled leak therethrough, a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenmer to said pump, a restrictor in said loop at the suction side of said pump, a makeup water supply line connected into said loop at a point between said restrictor and said pump, and a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to cause reduced pressure at the inlet to said pump upon increased flow to said c8rbonator.
Claim 9
Independent Claim
146 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure, a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenser to said pump, a restrictor in said loop at the suction side of said pump, a makeup water supply line connected into said loop at a point between said restrictor and said pump, a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to c8use reduced pressure at the inlet to said pump upon increased flow to said carbonator, and said inlet structure of said carbonator includes a restricted diameter line between said carbonator and the output of said pump continuously to supply a very small amount of water into said carbonator.
Claim 10
Independent Claim
146 words
A system for circulating chilled carbonated water comprising: a pressurized carbonator having a liquid level controlled inlet structure, a pump connected in a closed loop leading from said carbonator to a dispenser and from said dispenser to said pump, a restrictor in said loop at the suction side of said pump, a makeup water supply line connected into said loop at a point between said restrictor and said pump, a water pressure regulator in said supply line to supply makeup water at a pressure less than the operating pressure of said carbonator when said dispenser is opened to c8use reduced pressure at the inlet to said pump upon increased flow to said carbonator, and said inlet structure of said carbonator includes a restricted diameter line between said carbonator and the output of said pump continuously to supply a very small amount of water into said carbonator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |