US3783240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating system for body and foot warmth
Assignee: Individual
•
Filing: 1972-07-19
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Granted: 1974-01-01
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Expires: 1992-07-19
Abstract
Abstract A portable electric heating system. This device consists primarily of plug in units having heating elements controllable manually and automatically. The circuit consists of a multiple number of manual and motor operated switches with a battery power pack for supplying current to the plug in units.
Inventors
- 👤 C Drummond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:12
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/1951; H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
An electric device for heating certain portions of the body of a wearer, comprising: a. An electric current source including a plurality of electric cells; b. means for connecting the electrical current source to at least one of the heating units positioned about the torso of the wearer; c. means for connecting the electrical current source to at least one of the heating units positioned adjacent the sole of each foot of the wearer; d. a plurality of switches and a motor operated by the electric current source for automatically operating the switches for energizing and de-energizing the said heating units at predetermined intervals; e. means for disengaging said motor from the electrical current source and manually operated means for operating electrical switches for energizing and de-energizing said heating units. f. said foot heating elements having a plurality of heating units extending along the sole of the foot of the user and means for energizing the units individually or separately.
Claim 2
Dependent Claim
160 words
An electric device for heating certain portions of the body of a wearer, comprising: a. An electric current source including a plurality of electric cells; b. means for connecting the electrical current source to at least one of the heating units positioned about the torso of the wearer; c. means for connecting the electrical current source to at least one of the heating units positioned adjacent the sole of each foot of the wearer; d. a plurality of switches and a motor operated by the electric current source for automatically operating the switches for energizing and de-energizing the said heating units at predetermined intervals; e. means for disengaging said motor from the electrical current source and manually operated means for operating electrical switches for energizing and de-energizing said heating units. f. said foot heating elements having a plurality of heating units extending along the sole of the foot of the user and means for energizing the units individually or separately.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |