US3583412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic washing unit for storage tank or the like
Assignee: Individual
•
Filing: 1969-06-05
•
Granted: 1971-06-08
•
Expires: 1989-06-05
Abstract
Abstract Washing equipment for automatically washing storage tanks, for example, such as milk storage tanks used in the dairy industry. The equipment includes automatic controls for providing a series of cycles for washing the tanks, such as a first rinse cycle, a detergent washing cycle, and a final rinse cycle. The equipment continually passes either the rinse water or the washing solution through the vessel being cleaned and does not at any time store such cleaning liquid in the tank during the cleaning operation.
Inventors
- 👤 Lloyd F Bender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:16
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/093
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
194 words
Automatic washing apparatus for washing a storage tank or the like and comprising, a liquid solution tank having an outlet, a two-way valve adjacent and operatively associated with said solution tank for selectively diverting fluid to said solution tank or to a waste drain, a feed pump connected in fluid communication with and between said solution tank outlet and said storage tank for pumping fluid from said solution tank to said storage tank for cleaning the later, a return pump connected in fluid communication with and between said storage tank and said two-way valve for selectively pumping liquid from said storage tank to said solution tank or to said waste drain, a booster heater in said solution tank for heating fluid which is circulated between said tanks, and an electric circuit including an automatic control means having an electric timer and connected with and for operating said pumps and said two-way valve to thereby circulate rinse water from said solution tank to said bulk tank and then to said waste drain, and for circulating washing fluid from said solution tank to said bulk tank and back to said solution tank in a closed circuit.
Claim 2
Dependent Claim
194 words
Automatic washing apparatus for washing a storage tank or the like and comprising, a liquid solution tank having an outlet, a two-way valve adjacent and operatively associated with said solution tank for selectively diverting fluid to said solution tank or to a waste drain, a feed pump connected in fluid communication with and between said solution tank outlet and said storage tank for pumping fluid from said solution tank to said storage tank for cleaning the later, a return pump connected in fluid communication with and between said storage tank and said two-way valve for selectively pumping liquid from said storage tank to said solution tank or to said waste drain, a booster heater in said solution tank for heating fluid which is circulated between said tanks, and an electric circuit including an automatic control means having an electric timer and connected with and for operating said pumps and said two-way valve to thereby circulate rinse water from said solution tank to said bulk tank and then to said waste drain, and for circulating washing fluid from said solution tank to said bulk tank and back to said solution tank in a closed circuit.
Claim 3
Dependent Claim
61 words
Apparatus as defined in claim 1 further characterized in that said solution tank has an outlet and drain hole, and including a shiftable stopper valve for opening and closing said drain hole, said shiftable stopper valve having electric solenoid means for causing actuation thereof, said solenoid means being located in said electric circuit and operated under the influence of said timer.
References Cited (Backward Citations)
US3113046A
Cited
US2755809A
Cited
US3236248A
Cited
US3417763A
Cited
US3448742A
Cited
US3500839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |