US3937977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination disposer run and dishwasher disconnect switch for kitchen module
Assignee: Whirlpool Corp
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Filing: 1974-08-26
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Granted: 1976-02-10
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Expires: 1994-08-26
Abstract
Abstract An electrical switch in a modular unit between a single fused 15 amp power source and two electrical appliances, such as a garbage disposer and a dishwasher in a kitchen unit, is connected so that only one appliance can be connected to the power source at any one time.
Inventors
- 👤 Keith Ellis Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:40
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/12; H02J3/14; H02J2105/00; H02J2105/40; H02J2105/42; Y; Y02; Y02B; Y02B70/00; Y02B70/30; Y02B70/3225; Y04; Y04S; Y04S20/00; Y04S20/20; Y04S20/222; Y04S20/242
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A modular kitchen unit comprising a dishwasher, a sink, and a batch-feed garbage disposer in said sink, in combination with, a supply circuit having a single overload protection means remote from said unit, and comprising: an electrical switch in said disposer, means electrically connecting said switch to said single overload protection means and to circuitry for operating said unit, said switch having a first, normally closed contact means therein to supply electrical energy to said dishwasher and having a second, normally open contact means therein to supply electrical energy upon actuation of said switch to said disposer, said actuation interrupting said supply of energy to said dishwasher and connecting power to said disposer so that said single overload protection means is used and only one appliance is connected to the power source at one time.
Claim 2
Dependent Claim
135 words
A modular kitchen unit comprising a dishwasher, a sink, and a batch-feed garbage disposer in said sink, in combination with, a supply circuit having a single overload protection means remote from said unit, and comprising: an electrical switch in said disposer, means electrically connecting said switch to said single overload protection means and to circuitry for operating said unit, said switch having a first, normally closed contact means therein to supply electrical energy to said dishwasher and having a second, normally open contact means therein to supply electrical energy upon actuation of said switch to said disposer, said actuation interrupting said supply of energy to said dishwasher and connecting power to said disposer so that said single overload protection means is used and only one appliance is connected to the power source at one time.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |