US3836285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water regulator and power governor
Assignee: TRI MATIC
•
Filing: 1972-12-07
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Granted: 1974-09-17
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Expires: 1992-12-07
Abstract
Abstract Equipment detects the first small amount of air which is pumped from a liquid source and uses it for governing the power or liquid flow. This is accomplished by attaching an air separating relief vent to the discharge pipe of the pump. The vented pressurized air is captured and used to activate air driven cylinders which control the water flow or the power source by decreasing the speed of the pump or by choking the outlet of the pump or by increasing the fluid supply to the pump.
Inventors
- 👤 R Purtell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:44
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/16; F04D15/00; F04D15/0066; F04D15/02; F04D15/0209; F04D15/0218
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
98 words
In a liquid pumping system including a. a reservoir, and b. a pump having i. an inlet in the reservoir, ii. an outlet and iii. a power source for the pump, c. the improved method of regulating the system comprising the following steps: d. detecting if the liquid level in the reservoir is near the pump inlet by e. detecting if there is air in the pumped liquid at the outlet, f. controlling the level in the reservoir by g. making partial fluid flow adjustment responsive to said detection, by h. partially choking the outlet to the pump.
Claim 2
Dependent Claim
98 words
In a liquid pumping system including a. a reservoir, and b. a pump having i. an inlet in the reservoir, ii. an outlet and iii. a power source for the pump, c. the improved method of regulating the system comprising the following steps: d. detecting if the liquid level in the reservoir is near the pump inlet by e. detecting if there is air in the pumped liquid at the outlet, f. controlling the level in the reservoir by g. making partial fluid flow adjustment responsive to said detection, by h. partially choking the outlet to the pump.
Claim 3
Dependent Claim
151 words
In a liquid pumping system including a. a reservoir, and b. a pump having i. an inlet in the reservoir, ii. an outlet and iii. a power source for the pump; c. the improved method of regulating the system comprising the following steps: d. detecting if the liquid level in the reservoir is near the pump inlet by e. detecting if there is air in the pumped liquid at the outlet, f. controlling the level in the reservoir by g. making partial fluid flow adjustment responsive to said detection, h. attaching a float chamber to the outlet of the pump thus detecting if there is air in the pumped liquid, j. connecting the air from the float chamber to an air pressure motor, k. slowly bleeding air from the connection to the air pressure motor, and m. utilizing the output of the air pressure motor to make the fluid flow adjustment.
Claim 4
Dependent Claim
151 words
In a liquid pumping system including a. a reservoir, and b. a pump having i. an inlet in the reservoir, ii. an outlet and iii. a power source for the pump; c. the improved method of regulating the system comprising the following steps: d. detecting if the liquid level in the reservoir is near the pump inlet by e. detecting if there is air in the pumped liquid at the outlet, f. controlling the level in the reservoir by g. making partial fluid flow adjustment responsive to said detection, h. attaching a float chamber to the outlet of the pump thus detecting if there is air in the pumped liquid, j. connecting the air from the float chamber to an air pressure motor, k. slowly bleeding air from the connection to the air pressure motor, and m. utilizing the output of the air pressure motor to make the fluid flow adjustment.
Claim 5
Dependent Claim
108 words
In a liquid pumping system including a. a reservoir, b. a pump having i. an inlet in the reservoir, ii. an outlet, and iii. a power source for the pump, c. adjustment means for adjusting fluid flow in the system, and d. an air separator attached to the outlet; e. the improved regulator comprising in combination with the above: f. an air pressure motor, g. a conduit connecting the air separator to the air pressure motor, h. a connection from the air pressure motor to said adjustment means, and j. start means attached to the regulator for inactivating the regulator during periods of abnormal operation such as starting.
Claim 6
Dependent Claim
108 words
In a liquid pumping system including a. a reservoir, b. a pump having i. an inlet in the reservoir, ii. an outlet, and iii. a power source for the pump, c. adjustment means for adjusting fluid flow in the system, and d. an air separator attached to the outlet; e. the improved regulator comprising in combination with the above: f. an air pressure motor, g. a conduit connecting the air separator to the air pressure motor, h. a connection from the air pressure motor to said adjustment means, and j. start means attached to the regulator for inactivating the regulator during periods of abnormal operation such as starting.
Claim 7
Dependent Claim
19 words
The invention as defined in claim 3 wherein said start means is j. a vent valve in said conduit.
Claim 8
Dependent Claim
118 words
In a liquid pumping system including a. a reservoir, and b. a pump having i. an inlet in the reservoir, ii. an outlet and iii. a power source for the pump; c. the improved method of regulating the system comprising the following steps: d. detecting if the liquid level in the reservoir is near the pump inlet by e. by detecting if there is air in the pumped liquid at the outlet, f. controlling the level in the reservoir by g. making partial fluid flow adjustment responsive to said detection, h. capturing the air detected in the outlet, j. discharging a portion of the captured air, and k. using the retained captured air to perform said control steps.
Claim 9
Dependent Claim
118 words
In a liquid pumping system including a. a reservoir, and b. a pump having i. an inlet in the reservoir, ii. an outlet and iii. a power source for the pump; c. the improved method of regulating the system comprising the following steps: d. detecting if the liquid level in the reservoir is near the pump inlet by e. by detecting if there is air in the pumped liquid at the outlet, f. controlling the level in the reservoir by g. making partial fluid flow adjustment responsive to said detection, h. capturing the air detected in the outlet, j. discharging a portion of the captured air, and k. using the retained captured air to perform said control steps.
Claim 10
Dependent Claim
29 words
The invention as defined in claim 5 with additional limitations of m. controlling the level in the reservoir by n. adjusting the rate of discharge of the captured air.
Claim 11
Dependent Claim
23 words
The invention as defined in claim 6 wherein said control is by o. decreasing the speed of the power source of the pump.
Claim 12
Dependent Claim
19 words
The invention as defined in claim 6 wherein said control is by o. choking the outlet to the pump.
Claim 13
Dependent Claim
95 words
In a liquid pumping system including a. a reservoir, a pump having i. an inlet in the reservoir, ii. an outlet, And iii. a power source for the pump, c. adjustment means for adjusting fluid flow in the system, and d. an air separator attached to the outlet; e. the improved regulator comprising in combination with the above: f. an air pressure motor, g. a conduit connecting the air separator to the air pressure motor, h. a connection from the air pressure motor to said adjustment means, and j. an air accumulator in the conduit.
Claim 14
Dependent Claim
95 words
In a liquid pumping system including a. a reservoir, a pump having i. an inlet in the reservoir, ii. an outlet, And iii. a power source for the pump, c. adjustment means for adjusting fluid flow in the system, and d. an air separator attached to the outlet; e. the improved regulator comprising in combination with the above: f. an air pressure motor, g. a conduit connecting the air separator to the air pressure motor, h. a connection from the air pressure motor to said adjustment means, and j. an air accumulator in the conduit.
Claim 15
Dependent Claim
20 words
The invention as defined in claim 9 with an additional limitation of j. an adjustable air bleed in the conduit.
Claim 16
Dependent Claim
31 words
The invention as defined in claim 10 with an additional limitation of m. start means attached to the regulator for activating the regulator during periods of abnormal operation such as starting.
Claim 17
Dependent Claim
19 words
The invention as defined in claim 11 wherein said start means is n. a vent valve in said conduit.
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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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |