US4227541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curling apparatus
Assignee: David Satchell Products Ltd
•
Filing: 1978-08-23
•
Granted: 1980-10-14
•
Expires: 1998-08-23
Abstract
Abstract Portable hair curling apparatus particularly characterized by a resistance element having a plurality of individual wire strands, storage cells, and a three position switch for heating the strands or adapting the device for recharging of the cells. The switch and cells are positioned within the handle, the rear end of which is partially open and has mounted therein contacts to permit recharging of the cells.
Inventors
- 👤 David C. Satchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:55
CPC Classifications
A; A45; A45D; A45D1/00; A45D1/02; A45D1/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
223 words
Hair curling apparatus comprising (a) a handle, (b) a tong portion secured to and extending from the front of said handle, (c) a spring loaded clip mounted outwardly of said handle and said tong portion and biased toward the latter, (d) an energy source in the form of electrical storage cells mounted within said handle, (e) resistance element means mounted within said tong portion and comprising a plurality of individual strands the ends of which are commonly connected to electrical connector elements, each strand being encased in an insulating sleeve, with the strands and sleeves occupying substantially the entire area within the interior of said tong portion thereby reducing insulating air pockets within said tong portion, (f) contact means for recharging said storage cells mounted in the rear end of said handle, the latter being open at such end for mating connection with a recharging source, (g) a three-way switch mounted within said handle and including a switch actuator exposed exteriorly of said apparatus for operating said switch, said switch having terminal settings for alternately heating said resistance element means or recharging said storage cells, and a third position between said terminals for an off or deactuated condition, and (h) circuit means electrically interconnecting said switch with said resistance element means, said storage cells, and said contact means for recharging said storage cells.
Claim 2
Dependent Claim
223 words
Hair curling apparatus comprising (a) a handle, (b) a tong portion secured to and extending from the front of said handle, (c) a spring loaded clip mounted outwardly of said handle and said tong portion and biased toward the latter, (d) an energy source in the form of electrical storage cells mounted within said handle, (e) resistance element means mounted within said tong portion and comprising a plurality of individual strands the ends of which are commonly connected to electrical connector elements, each strand being encased in an insulating sleeve, with the strands and sleeves occupying substantially the entire area within the interior of said tong portion thereby reducing insulating air pockets within said tong portion, (f) contact means for recharging said storage cells mounted in the rear end of said handle, the latter being open at such end for mating connection with a recharging source, (g) a three-way switch mounted within said handle and including a switch actuator exposed exteriorly of said apparatus for operating said switch, said switch having terminal settings for alternately heating said resistance element means or recharging said storage cells, and a third position between said terminals for an off or deactuated condition, and (h) circuit means electrically interconnecting said switch with said resistance element means, said storage cells, and said contact means for recharging said storage cells.
Claim 3
Dependent Claim
64 words
The apparatus of claim 1 wherein end covers are provided having a generally circular radially outer end which extend over the insulating sleeves to form an assembled unit, with said end covers having mounted therein said electrical connector elements which are in electrical contact with said strands, and lead wires electrically connected to said connector elements and to said switch and said storage cells.
Claim 4
Dependent Claim
18 words
The apparatus of claim 2 wherein said end covers and said insulating sleeves are formed of glass fibers.
Claim 5
Dependent Claim
33 words
The apparatus of claim 1 wherein said handle is formed of plastic material and includes spacer means integrally formed therewith on the interior surface thereof for confining the movement of said storage cells.
Claim 6
Dependent Claim
17 words
The apparatus of claim 4 wherein said storage cells are encapsulated in a sleeve of plastic material.
Claim 7
Dependent Claim
42 words
The apparatus of claim 1 wherein said contact means for recharging said storage cells comprise brass contact pads encased in protective insulating shrouds, with the pads and shrouds being mounted on a contact board secured at the perphery thereof to said handle.
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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |