US4472766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torch
Assignee: FREEZINHOT BOTTLE CO Ltd
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Filing: 1982-01-15
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Granted: 1984-09-18
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Expires: 2002-01-15
Abstract
Abstract The present invention relates to torches. The torch described herein has two components which together define a case containing battery means and a bulb, with a seal located between the two components. The torch is operated by causing relative movement between the two components.
Inventors
- 👤 Kung C. Hung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:09
CPC Classifications
F; F21; F21L; F21L2/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
265 words
An electic torch comprising: a cylindrical body member closed at one end and open at the other end, said other end of said body member having an enlarged shell-like portion and a radially extending circumferential rib surrounding said body member substantially at the juncture of said shell-like portion and the remainder of said body member, said shell-like portion of said body member being externally threaded, a circumferential channel in the external surface of said shell-like portion opening through the outer surface thereof between said threading and said rib; a cylindrical head member having one closed end defining a transparent window, the other end thereof being open, said head member being internally threaded to be received on said body member; a bulb socket and reflector assembly in said shell-like portion; a pair of electrical contacts forming a switch enclosed within said torch, one being mounted in and stationary with said body member and the other movable with said head member for opening and closing said switch as said head is turned about said body member; an annual seal in said channel engaging the internal surface of said open end of said head member to provide a watertight joint between said head and body members; an annual skirt member of U-shaped cross section having its open face directed toward said head member, said skirt member seated on said rib and telescopically receiving said open end of said head member therein the depth of said skirt member being such that said open end of said head member is located therein when said switch is both opened and closed.
Claim 2
Dependent Claim
265 words
An electic torch comprising: a cylindrical body member closed at one end and open at the other end, said other end of said body member having an enlarged shell-like portion and a radially extending circumferential rib surrounding said body member substantially at the juncture of said shell-like portion and the remainder of said body member, said shell-like portion of said body member being externally threaded, a circumferential channel in the external surface of said shell-like portion opening through the outer surface thereof between said threading and said rib; a cylindrical head member having one closed end defining a transparent window, the other end thereof being open, said head member being internally threaded to be received on said body member; a bulb socket and reflector assembly in said shell-like portion; a pair of electrical contacts forming a switch enclosed within said torch, one being mounted in and stationary with said body member and the other movable with said head member for opening and closing said switch as said head is turned about said body member; an annual seal in said channel engaging the internal surface of said open end of said head member to provide a watertight joint between said head and body members; an annual skirt member of U-shaped cross section having its open face directed toward said head member, said skirt member seated on said rib and telescopically receiving said open end of said head member therein the depth of said skirt member being such that said open end of said head member is located therein when said switch is both opened and closed.
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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) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |