Patent US3707160A successfully refreshed from Google Patents.
US3707160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote storage arrangement for dishwashing treating agent
Assignee: Individual
•
Filing: 1971-02-01
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Granted: 1972-12-26
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Expires: 1991-02-01
Abstract
Abstract Chemically active, liquid treatment agents are dispensed to a dishwashing apparatus which circulates liquid to cleanse soiled dishes from an intermediate reservoir at the dishwashing apparatus, with the intermediate reservoir being supplied with liquid treating agent by the combination of a remote storage reservoir, a flow motivating apparatus, and apparatus for controlling the flow of liquid treating agent between the reservoirs.
Inventors
- 👤 Grady W Query
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:52
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4418; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/7287; Y10T137/7358; Y10T137/7368; Y10T137/8593; Y10T137/86389
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
304 words
An arrangement for reducing the likelihood of accidental release of chemically active liquid treating agents in a food preparation area while accommodating use of such agents in dishwashing and comprising, in combination, dishwasher cabinet means for receiving soiled dishes to be cleaned, means for circulating within said cabinet means a solution of water and a chemically active liquid treating agent, storage reservoir means remote from said cabinet means and for receiving and retaining a bulk quantity of liquid treating agent, intermediate reservoir means mounted on said cabinet means and operatively communicating with said storage reservoir means for receiving and retaining a limited, small quantity of liquid treating agent, valve means interposed between said cabinet means and said intermediate reservoir means for controlling operative communication therebetween and flow of liquid treating agent into said cabinet means, cycle control means operatively connected with said circulating means and said valve means for governing the sequence of operation thereof, electrically operable flow motivating means operatively connected with said reservoir means for motivating and directing liquid treating agent to flow from said storage reservoir means to said intermediate reservoir means, and flow control means including electrical switch means mounted within said intermediate reservoir means and electrically connected to said flow motivating means for delivering liquid treating agent into said intermediate reservoir means as required by changes in the conductive state of said switch means and float means mounted for movement within said intermediate reservoir means in response to fluctuation in the level of liquid treating agent retained therewithin such as upon opening of said valve means to admit liquid treating agent into said cabinet, said switch means and said float means cooperating for changing the conductive state of said switch means as required for maintaining a limited quantity of liquid treating agent available for admission into said cabinet means.
Claim 2
Dependent Claim
304 words
An arrangement for reducing the likelihood of accidental release of chemically active liquid treating agents in a food preparation area while accommodating use of such agents in dishwashing and comprising, in combination, dishwasher cabinet means for receiving soiled dishes to be cleaned, means for circulating within said cabinet means a solution of water and a chemically active liquid treating agent, storage reservoir means remote from said cabinet means and for receiving and retaining a bulk quantity of liquid treating agent, intermediate reservoir means mounted on said cabinet means and operatively communicating with said storage reservoir means for receiving and retaining a limited, small quantity of liquid treating agent, valve means interposed between said cabinet means and said intermediate reservoir means for controlling operative communication therebetween and flow of liquid treating agent into said cabinet means, cycle control means operatively connected with said circulating means and said valve means for governing the sequence of operation thereof, electrically operable flow motivating means operatively connected with said reservoir means for motivating and directing liquid treating agent to flow from said storage reservoir means to said intermediate reservoir means, and flow control means including electrical switch means mounted within said intermediate reservoir means and electrically connected to said flow motivating means for delivering liquid treating agent into said intermediate reservoir means as required by changes in the conductive state of said switch means and float means mounted for movement within said intermediate reservoir means in response to fluctuation in the level of liquid treating agent retained therewithin such as upon opening of said valve means to admit liquid treating agent into said cabinet, said switch means and said float means cooperating for changing the conductive state of said switch means as required for maintaining a limited quantity of liquid treating agent available for admission into said cabinet means.
Claim 3
Dependent Claim
61 words
The combination according to claim 1 wherein said flow motivating means comprises pressurization means connected to said storage reservoir means for creating a predetermined pressure therewithin and thereby for imposing on the liquid treating agent retained in said storage reservoir means a force sufficient to cause the treating agent to flow from said storage reservoir means to said intermediate reservoir means.
Claim 4
Dependent Claim
88 words
The combination according to claim 1 wherein said flow motivating means comprises pump means mounted at said storage reservoir means for pumping liquid treating agent to said intermediate storage means and further wherein said flow control means comprises pump control means operatively connected to said pump means for actuating the same in response to a drop in the level of liquid treating agent retained in said intermediate reservoir means to thereby cause the liquid treating agent to flow from said storage reservoir means to said intermediate reservoir means.
References Cited (Backward Citations)
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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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |