Patent US4533982A successfully refreshed from Google Patents.
US4533982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashlight with swivelling head
Assignee: Individual
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Filing: 1984-10-22
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Granted: 1985-08-06
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Expires: 2004-10-22
Abstract
Abstract A portable flashlight comprises an elongate battery casing and a swivelling flashlight head connected to one end of the casing through a ball-and-socket connection which forms part of the electrical circuit connecting the batteries to the flashlight bulb. A removable support pad is provided for attachment to an end cap of the casing for supporting the casing in vertical position while permitting swivelling movements of the flashlight head, and the casing further includes a transversely extending support pad for supporting the casing on its side and a magnetic assembly for magnetically attaching the casing to a support surface.
Inventors
- 👤 John J. Kozar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:19
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; F21V23/0414; F21L; F21L4/00; F21L4/04
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
64 words
A portable flashlight comprising a battery casing, a flashlight head with a light bulb, lens and reflector assembly, and an electrically conducting ball-and-socket assembly forming a swivel connection between the battery casing and the head and also providing electrical connection between the battery casing and the head as part of an electrical circuit for connecting a battery in the casing with the light bulb.
Claim 2
Dependent Claim
64 words
A portable flashlight comprising a battery casing, a flashlight head with a light bulb, lens and reflector assembly, and an electrically conducting ball-and-socket assembly forming a swivel connection between the battery casing and the head and also providing electrical connection between the battery casing and the head as part of an electrical circuit for connecting a battery in the casing with the light bulb.
Claim 3
Dependent Claim
72 words
The invention of claim 1 wherein the socket is secured to a mounting piece received in a cylindrical terminal portion of the battery casing with the socket and casing being mutually configured to allow swivelling of the ball in a manner providing substantially 180° movement of the flashlight head in one plane, less than 180° movement of the flashlight head in an orthogonal plane, and 360° orbital movement of the flashlight head.
Claim 4
Dependent Claim
44 words
The invention of claim 1 wherein the socket is secured to a non-conducting mounting piece received in the battery casing with an electrically conducting contact member extending from the socket through the mounting piece for contacting one terminal of a battery in the casing.
Claim 5
Dependent Claim
13 words
The invention of claim 3 wherein the contact member comprises a coil spring.
Claim 6
Dependent Claim
47 words
The invention of claim 3 wherein the ball includes an electrically conducting arm extending into one end of a non-conducting plug received in the flashlight head, the plug further including electrical connector means for providing electrical connection between the arm and one terminal of the flashlight bulb.
Claim 7
Dependent Claim
57 words
The invention of claim 5 wherein the connector means includes a plunger in the plug having an elongate extension projecting from the opposite end of the plug and a spring interposed between the arm and the plunger in a plunger chamber formed in the plug for urging the plunger extension toward a base terminal of the bulb.
Claim 8
Dependent Claim
39 words
The invention of claim 6 wherein the bulb, lens and reflector assembly includes a bulb-receiving cup with a spring contact in the base thereof for providing electrical connection between the plunger extension and the base terminal of the bulb.
Claim 9
Dependent Claim
36 words
The invention of claim 7 wherein the flashlight head includes an internal contact for providing electrical connection between a ring terminal of the bulb and a return portion of the electrical circuit including an on-off switch.
Claim 10
Dependent Claim
33 words
The invention of claim 8 wherein the switch is mounted on the flashlight head, and a return lead extends from the switch through the plug to a ground connection on the battery casing.
Claim 11
Dependent Claim
35 words
The invention of claim 1 wherein the battery casing is of elongate cylindrical form with said ball-and-socket connection at one end thereof and a removable battery-retaining and electrical contact-forming cap at the other end thereof.
Claim 12
Dependent Claim
33 words
The invention of claim 10 wherein the cap includes an attachment means for a removable support pad for supporting the battery casing on its end while permitting swivelling movements of the flashlight head.
Claim 13
Dependent Claim
35 words
The invention of claim 11 wherein the battery casing includes a transversely extending support pad adjacent the swivel connection for supporting the battery casing on its side while permitting swivelling movements of the flashlight head.
Claim 14
Dependent Claim
20 words
The invention of claim 12 including a magnet assembly on the battery casing for supporting same on a magnetic surface.
Claim 15
Dependent Claim
89 words
A portable flashlight comprising an elongate cylindrical battery casing, a flashlight head having a light bulb, lens and reflector assembly, a ball-and-socket assembly forming a swivel connection between the battery casing and the head at one end of the casing, circuit mens for providing electrical connection between a battery in the battery casing and the bulb throughout a swivelling range of the flashlight head, and a support pad for the opposite end of the casing for supporting the casing on end while permitting swivelling movements of the flashlight head.
Claim 16
Dependent Claim
89 words
A portable flashlight comprising an elongate cylindrical battery casing, a flashlight head having a light bulb, lens and reflector assembly, a ball-and-socket assembly forming a swivel connection between the battery casing and the head at one end of the casing, circuit mens for providing electrical connection between a battery in the battery casing and the bulb throughout a swivelling range of the flashlight head, and a support pad for the opposite end of the casing for supporting the casing on end while permitting swivelling movements of the flashlight head.
Claim 17
Dependent Claim
30 words
The invention of claim 14 wherein the support pad has a releasable connection with a removable battery-retaining and electrical contact-forming end cap fitting on said opposite end of the casing.
Claim 18
Dependent Claim
40 words
The invention of claim 15 wherein the end cap has an outwardly projecting post for receiving the support pad and the pad has spring detent means for retaining same on the post by engaging a circumferential groove on the post.
Claim 19
Dependent Claim
35 words
The invention of claim 14 wherein the battery casing includes a further transversely extending support pad adjacent said one end thereof for supporting the casing on its side while permitting swivelling movements of the head.
Claim 20
Dependent Claim
22 words
The invention of claim 14 wherein the battery casing includes a magnet fitting for magnetically attaching the casing to a magnetic surface.
References Cited (Backward Citations)
US3008040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |