Patent US3697198A successfully refreshed from Google Patents.
US3697198A
Expired / Lapsed
US
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Attachment for charcoal burning unit
Assignee: Individual
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Filing: 1970-12-01
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Granted: 1972-10-10
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Expires: 1990-12-01
Abstract
Abstract An attachment for a charcoal burning structure whereby an induced draft is provided by means of a relatively small portable unit which may readily be secured to the charcoal burning structure when needed and readily released therefrom for storage when not in use.
Inventors
- 👤 David A Holder Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:36
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0754; F; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/084; F24; F24B; F24B15/00; F24B15/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A portable battery-operated blower unit for use in conjunction with a charcoal-burning grill, comprising a unitary casing including a compartment to house battery means, said casing also having an enlarged compartment above the first mentioned compartment, an electric motor in said enlarged compartment having its axis at right angle to the vertical axis of the flash-light casing, an axial flow impeller driven by said motor outwardly of the casing, a supporting clip positively secured to the casing and extending therefrom to a position beneath the impeller, said clip having flexible turned in terminals or ears for mounting on the grill, said terminals being rubber-covered to deaden the sound of the motor while in operation on the grill and to prevent creeping when the casing is in position on the grill, a rheostat carried in the aforesaid enlarged compartment of the casing to vary the speed of the motor, and a switch mounted on the casing to control admission of current to the motor.
Claim 2
Dependent Claim
163 words
A portable battery-operated blower unit for use in conjunction with a charcoal-burning grill, comprising a unitary casing including a compartment to house battery means, said casing also having an enlarged compartment above the first mentioned compartment, an electric motor in said enlarged compartment having its axis at right angle to the vertical axis of the flash-light casing, an axial flow impeller driven by said motor outwardly of the casing, a supporting clip positively secured to the casing and extending therefrom to a position beneath the impeller, said clip having flexible turned in terminals or ears for mounting on the grill, said terminals being rubber-covered to deaden the sound of the motor while in operation on the grill and to prevent creeping when the casing is in position on the grill, a rheostat carried in the aforesaid enlarged compartment of the casing to vary the speed of the motor, and a switch mounted on the casing to control admission of current to the motor.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |