US4074110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand held electric heating device
Assignee: Individual
•
Filing: 1975-12-02
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Granted: 1978-02-14
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Expires: 1995-12-02
Abstract
Abstract An electrically powered hand-held heating device having an electrical heating member with a sleeve member disposed thereabout for insulating the user's hand from localized heating of the heating member, a body member formed having an enlarged housing portion and a reduced neck portion. The neck portion releasably engages the heating member and the sleeve member and provides a thermal barrier between the heating member, and the enlarged housing portion while the enlarged housing portion has an electronic control circuit mounted therein for controlling the heating temperature of the heating member for various selected heating ranges.
Inventors
- 👤 Philip E. Slaughter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/023; A; A61; A61C; A61C13/00; A61C13/0028; B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/0338; H05B3/00; H05B2203/00; H05B2203/03
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
252 words
An electrically powered heating device adapted to be held in the hand of a user, comprising: elongated electrical heating means for providing localized heating over various selected heating ranges for a variety of applications, said elongated electrical heating means comprising; an elongated substantially rigid tubular sheath; an electric heating element in said sheath; terminal means at one end of said sheath; and, collet means at the other end of said sheath for removably receiving and holding a heating tip in a heat exchange relation to said electric heating element; an elongated sleeve means of thermally insulative material disposed in spaced relation about and covering a major portion of said heating means for gripping by the user and for thermally insulating the user's hand from said heating means, said collet means being spaced from one end of said sleeve means; a body member formed having an enlarged housing portion and a reduced neck portion, said neck portion releasably engaging said terminal means of said heating means, said neck portion having a first end and a second end, said first end formed with said enlarged housing portion providing a thermal barrier between said heating means and said enlarged housing portion, said second end adapted to releasably engage the other end of said sleeve means; an electronic control circuit coupled to said heating means for selectively controlling a heating temperature of said heating means over various selected heating ranges; and said enlarged housing portion formed with a cavity therein for housing said electronic control circuit.
Claim 2
Dependent Claim
252 words
An electrically powered heating device adapted to be held in the hand of a user, comprising: elongated electrical heating means for providing localized heating over various selected heating ranges for a variety of applications, said elongated electrical heating means comprising; an elongated substantially rigid tubular sheath; an electric heating element in said sheath; terminal means at one end of said sheath; and, collet means at the other end of said sheath for removably receiving and holding a heating tip in a heat exchange relation to said electric heating element; an elongated sleeve means of thermally insulative material disposed in spaced relation about and covering a major portion of said heating means for gripping by the user and for thermally insulating the user's hand from said heating means, said collet means being spaced from one end of said sleeve means; a body member formed having an enlarged housing portion and a reduced neck portion, said neck portion releasably engaging said terminal means of said heating means, said neck portion having a first end and a second end, said first end formed with said enlarged housing portion providing a thermal barrier between said heating means and said enlarged housing portion, said second end adapted to releasably engage the other end of said sleeve means; an electronic control circuit coupled to said heating means for selectively controlling a heating temperature of said heating means over various selected heating ranges; and said enlarged housing portion formed with a cavity therein for housing said electronic control circuit.
Claim 3
Dependent Claim
46 words
The heating device of claim 1, wherein: said terminal means of said heating means is threadedly mounted with said neck portion of said body member such that said terminal means may be positively connected with and easily removed from said body member for various heating applications.
Claim 4
Dependent Claim
44 words
The heating device of claim 1, wherein: said sleeve means is threadedly affixed with said neck portion to enhance the removability of said sleeve means for accommodating various sleeve means of differing insulating capacities for the various selected heating ranges of said heating means.
Claim 5
Dependent Claim
51 words
The heating device of claim 3, wherein said sleeve means further includes: an insulating bushing formed with said sleeve means and adapted to be disposed about said heating means within said sleeve means for insulating the areas adjacent the gripping by user's hand from the heat generated by said heating means.
Claim 6
Dependent Claim
17 words
The heating device of claim 4, wherein: said insulating bushing is formed of a synthetic resin polymer.
Claim 7
Dependent Claim
44 words
The heating device of claim 3, wherein said sleeve means further includes: ventilation means formed with said sleeve means for allowing air flow about said sleeve means for promoting the cooling of areas adjacent to the user's grip allowing for comfortable and extended use.
Claim 8
Dependent Claim
34 words
The heating device of claim 1, wherein said electronic control circuit includes: gating means for limiting the interval of current flow to said heating means for controlling said heating temperature for said heating means.
Claim 9
Dependent Claim
16 words
The heating device of claim 7, wherein: said gating means includes a voltage responsive electronic switch.
Claim 10
Dependent Claim
44 words
The heating device of claim 1, further including: indicating means mounted with said body member for indicating current flow in said heating means, said indicating means varying in light intensity proportionally to the heat generated in said heating means over various selected heating ranges.
Claim 11
Dependent Claim
15 words
The heating device of claim 9, wherein: said indicating means is a light emitting diode.
Claim 12
Dependent Claim
28 words
The heating device of claim 1, further including: choke means connected in said electronic control circuit to reduce electromagnetic interference caused by electromagnetic radiation from said heating means.
Claim 13
Dependent Claim
30 words
The heating device of claim 1, wherein said electronic control circuit includes: a variable potentiometer for selectively controlling current flow to said heating means over a variety of heating temperatures.
Claim 14
Dependent Claim
33 words
The heating device of claim 1, wherein: said enlarged housing portion of said body member counterbalances said neck portion, said sleeve means, and said heating means for balanced, operating ease by the user.
Claim 15
Dependent Claim
59 words
The heating device of claim 1, wherein: said first end of said neck portion conforms substantially to the contour of the portion of the user's hand between the thumb and forefinger providing a heating device rest for said body member on the user's hand, to enhance the user gripping said sleeve means with the fingers of the user's hand.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |