US3141467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety switch and door lock for dishwashing machines
Assignee: Toledo Scale Corp
•
Filing: 1962-06-20
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Granted: 1964-07-21
•
Expires: 1982-06-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Robson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:53
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/4251; A47L15/4257; A47L15/4259; A47L15/0076; A47L15/0081; Y; Y10; Y10S; Y10S292/00; Y10S292/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A DISHWASHING MACHINE HAVING A WASHING SPACE AND A ROOF THEREABOVE, IN COMBINATION, DOOR MEANS FOR ENCLOSING AND SELECTIVELY EXPOSING THE SPACE, THE DOOR MEANS INCLUDING A FLEXIBLE RIM ENGAGEABLE WITH THE ROOF TO SEAL IN STEAM AND WATER, A SWITCH OPERATOR WHICH IS CAUGHT BETWEEN THE RIM AND THE ROOF WHEN THE DOOR MEANS IS CLOSED, WHEREBY THE SWITCH OPERATOR IS OPERATED BY THE RIM, AND A SAFETY SWITCH OPERATED BY THE SWITCH OPERATOR AND ADAPTED, WHENEVER THE DOOR MEANS IS MOVED TO ITS EXPOSING POSITION, TO PREVENT OPERATION OF THE MACHINE, THE FLEXIBLE RIM WHEN THE DOOR MEANS IS CLOSED HUMPING UP SLIGHTLY AT THE SWITCH OPERATOR TO ALLOW ROOM FOR THE SWITCH OPERATOR BETWEEN THE RIM AND THE ROOF WITHOUT BREAKING SAID STEAM AND WATER SEAL.
Claim 2
Dependent Claim
130 words
IN A DISHWASHING MACHINE HAVING A WASHING SPACE AND A ROOF THEREABOVE, IN COMBINATION, DOOR MEANS FOR ENCLOSING AND SELECTIVELY EXPOSING THE SPACE, THE DOOR MEANS INCLUDING A FLEXIBLE RIM ENGAGEABLE WITH THE ROOF TO SEAL IN STEAM AND WATER, A SWITCH OPERATOR WHICH IS CAUGHT BETWEEN THE RIM AND THE ROOF WHEN THE DOOR MEANS IS CLOSED, WHEREBY THE SWITCH OPERATOR IS OPERATED BY THE RIM, AND A SAFETY SWITCH OPERATED BY THE SWITCH OPERATOR AND ADAPTED, WHENEVER THE DOOR MEANS IS MOVED TO ITS EXPOSING POSITION, TO PREVENT OPERATION OF THE MACHINE, THE FLEXIBLE RIM WHEN THE DOOR MEANS IS CLOSED HUMPING UP SLIGHTLY AT THE SWITCH OPERATOR TO ALLOW ROOM FOR THE SWITCH OPERATOR BETWEEN THE RIM AND THE ROOF WITHOUT BREAKING SAID STEAM AND WATER SEAL.
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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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |