Patent US3934217A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3934217A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermostat control device

Assignee: Lee Raymond Organization Inc
•
Filing: 1974-08-09
•
Granted: 1976-01-20
•
Expires: 1994-08-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An electric heating device is positioned in close proximity with a thermostat. An electrical energizing device energizes the heating device. The energizing device includes a switch for selectively actuating and deactivating the energizing of the heating device. A timer is coupled to the switch. The timer closes the switch thereby energizing the heating device and raising the temperature in the area of the thermostat above room temperature by ΔT determined by the amount of heat generated by the heater and the distance between the heater and the thermostat. The timer opens the switch after a preselected period of time thereby deenergizing the heating device and lowering the temperature in the area of the thermostat to the room temperature whereby the thermostat controls the room temperature in accordance with the setting thereon.

Inventors

  • 👤 Ivo Brcic

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 07:54
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/12; H01H37/14; G; G05; G05D; G05D23/00; G05D23/19; G05D23/30; G05D23/32

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 159 words
A thermostat offsetting device for controlling the operation of a thermostat having a selected setting thereon, said thermostat offsetting device comprising an electric heating device in close proximity with a thermostat; electrical energizing means for energizing the heating device, said energizing means including switch means for selectively activating the energizing of the heating device and deactivating the energizing of the heating device; and timer means coupled to the switch means for closing the switch means thereby energizing the heating device and raising the temperature in the area of the thermostat above room temperature by ΔT determined by the amount of heat generated by the heating device and the distance between the heating device and the thermostat and opening the switch means after a preselected period of time thereby deenergizing the heating device and lowering the temperature in the area of the thermostat to the room temperature whereby the thermostat controls the room temperature in accordance with the setting thereon.
Claim 2
Dependent Claim 159 words
A thermostat offsetting device for controlling the operation of a thermostat having a selected setting thereon, said thermostat offsetting device comprising an electric heating device in close proximity with a thermostat; electrical energizing means for energizing the heating device, said energizing means including switch means for selectively activating the energizing of the heating device and deactivating the energizing of the heating device; and timer means coupled to the switch means for closing the switch means thereby energizing the heating device and raising the temperature in the area of the thermostat above room temperature by ΔT determined by the amount of heat generated by the heating device and the distance between the heating device and the thermostat and opening the switch means after a preselected period of time thereby deenergizing the heating device and lowering the temperature in the area of the thermostat to the room temperature whereby the thermostat controls the room temperature in accordance with the setting thereon.
Claim 3
Dependent Claim 18 words
A thermostat offsetting device as claimed in claim 1, wherein the heating device comprises a resistance heating element.

References Cited (Backward Citations)

US3588774A Cited
US3799433A Cited
US3849753A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-01-19 1979-07-21 1980-01-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-01-19 1983-07-21 1984-01-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-01-19 1987-07-21 1988-01-20 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag