Patent US4600826A successfully refreshed from Google Patents.
US4600826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating time control means for a heating appliance
Assignee: Panasonic Holdings Corp
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Filing: 1983-10-28
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Granted: 1986-07-15
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Expires: 2003-10-28
Abstract
Abstract PCT No. PCT/JP83/00389 Sec. 371 Date Jun. 26, 1984 Sec. 102(e) Date Jun. 26, 1984 PCT Filed Oct. 28, 1983 PCT Pub. No. WO84/01813 PCT Pub. Date May 10, 1984.By intermittently starting and stopping a timer motor of a timer which is a heating time setting device by means of an intermittent switch to turn on and off the power source, two speeds are obtained, and one timer may be used to set both a long time and a short time, and moreover when the timer is set for a long time, the input of heating means is also connected and disconnected so as to obtain a heating output which makes possible simmering or stewing.
Inventors
- 👤 Yozo Ishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:04
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6408; H05B6/6411
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
262 words
A heating appliance comprising: a heating compartment for containing an object to be heated; a heating means for heating the object in said compartment; a power supply; a steady power supply connecting means connected between said power supply and said heating means; an intermittently operable power supply means connected between said power supply and said heating means in parallel with said steady power supply connecting means for intermittently supplying power and connectable to said heating means; switching means for switching between the connection of the steady power supply connecting means and the intermittently operable power supply means to said heating means; an electrically driven heating time control means settable for controlling the operating time of said heating means; a drive means for setting said heating time control means; a cam driven by said heating time control means and a lever engaged by said cam; and a changeover switch operated by said lever and connected with said intermittently operable power supplying means and said time control means and also between said power supply and said time control means for changing the power supply to said time control means from an intermittent power supply to a continuous power supply after the passage of a predetermined time of operation of said time control means; whereby the power supplied to the time control means is intermittently varied through said intermittently operable power supplying means to drive said time control means at a slower speed and then at a higher speed after the operation of said changeover switch by said lever driven by said time control means.
Claim 2
Dependent Claim
262 words
A heating appliance comprising: a heating compartment for containing an object to be heated; a heating means for heating the object in said compartment; a power supply; a steady power supply connecting means connected between said power supply and said heating means; an intermittently operable power supply means connected between said power supply and said heating means in parallel with said steady power supply connecting means for intermittently supplying power and connectable to said heating means; switching means for switching between the connection of the steady power supply connecting means and the intermittently operable power supply means to said heating means; an electrically driven heating time control means settable for controlling the operating time of said heating means; a drive means for setting said heating time control means; a cam driven by said heating time control means and a lever engaged by said cam; and a changeover switch operated by said lever and connected with said intermittently operable power supplying means and said time control means and also between said power supply and said time control means for changing the power supply to said time control means from an intermittent power supply to a continuous power supply after the passage of a predetermined time of operation of said time control means; whereby the power supplied to the time control means is intermittently varied through said intermittently operable power supplying means to drive said time control means at a slower speed and then at a higher speed after the operation of said changeover switch by said lever driven by said time control means.
Claim 3
Dependent Claim
33 words
A heating appliance as claimed in claim 1 wherein the length of the arm of said lever between said cam and the fulcrum is longer than between the fulcrum and the change-over switch.
Claim 4
Dependent Claim
42 words
A heating appliance as claimed in claim 1 in which the angle formed by the point of engagement of said lever with said cam, the fulcrum and the point of engagement of the lever with said changeover switch is at least 90°.
Claim 5
Dependent Claim
60 words
A heating appliance as claimed in claim 1 in which said intermittently operable power supplying means is an openable and closeable switch, and said heating appliance further comprising a fan motor for driving a fan for cooling the inside of said heating compartment, said fan motor being connected to said openable and closeable switch for opening and closing said switch.
References Cited (Backward Citations)
US3736799A
Cited
JPS5235132A
Cited
JPS5243143A
Cited
US4177370A
Cited
US4129769A
Cited
JPS52112135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |