US4750095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auto-lighting flashlight assembly
Assignee: Individual
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Filing: 1986-08-11
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Granted: 1988-06-07
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Expires: 2006-08-11
Abstract
Abstract An automatically-lighting flashlight assembly includes a flashlight and a holder. The flashlight includes a housing receiving an upper and a lower batteries in series connection and a light bulb arrangement, and two springs which bias the batteries normally to light the light bulb. The housing further includes a through hole at a location where the cathode of the upper battery meets the anode of the lower battery. The holder, which is coated with phosphorescent material and which is mountable, includes means for gripping the flashlight against the holder, and a separating rod which can extend into the through hole in the housing and between the batteries, breaking the electrical connection and extinguishing the light bulb. By this arrangement, the flashlight lights automatically when removed from the holder and is extinguished automatically when replaced in the holder.
Inventors
- 👤 Tien-Tsai Huang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:50
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/005; F21V; F21V23/00; F21V23/04; F21V23/0414
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
335 words
An automatically-lighting flashlight assembly including: an upper battery and a lower battery; a flashlight, having a hollow cylindrical metal housing including a chamber receiving said upper and said lower batteries, said housing having an enlarged upper end with an inner annular shoulder and a closed lower end, and further having a through hole at an intermediate portion thereof at a location where a cathode of said upper battery contacts an anode of said lower battery; a bulb seat member fixed on said annular shoulder in said housing; a light bulb received in said bulb seat member to emit light from said enlarged end, said light bulb being in electrical contact with an anode of said upper battery and a cathode of said lower battery; two spring members, a first spring member being wound around said base of said light bulb, including two first ends abutting respectively said bulb seat member and said anode of said upper battery, and a second spring member including two second ends abutting respectively said closed lower end and said cathode of said lower battery, so that said first and second springs cooperatively bias said batteries to abut each other to complete, normally, the electrical connection to light said light bulb; and a longitudinal holder, including a long body, a flat base protruding from said long body for receiving said closed end to rest on said flat base, a pair of gripping arms extending from said body for receiving said enlarged end to be removably squeezed into and held between said arms, and a non-conductive separating rod, projecting from said long body between said flat base and said gripping arms in a location corresponding to the through hole of said housing when said housing is recieved in said holder; wherein, when said flashlight body is placed in said holder, said separating rod is capable of projecting into said through hole and extending between said batteries, breaking the electrical contact of said batteries and causing the light bulb light to be extinguished.
Claim 2
Dependent Claim
335 words
An automatically-lighting flashlight assembly including: an upper battery and a lower battery; a flashlight, having a hollow cylindrical metal housing including a chamber receiving said upper and said lower batteries, said housing having an enlarged upper end with an inner annular shoulder and a closed lower end, and further having a through hole at an intermediate portion thereof at a location where a cathode of said upper battery contacts an anode of said lower battery; a bulb seat member fixed on said annular shoulder in said housing; a light bulb received in said bulb seat member to emit light from said enlarged end, said light bulb being in electrical contact with an anode of said upper battery and a cathode of said lower battery; two spring members, a first spring member being wound around said base of said light bulb, including two first ends abutting respectively said bulb seat member and said anode of said upper battery, and a second spring member including two second ends abutting respectively said closed lower end and said cathode of said lower battery, so that said first and second springs cooperatively bias said batteries to abut each other to complete, normally, the electrical connection to light said light bulb; and a longitudinal holder, including a long body, a flat base protruding from said long body for receiving said closed end to rest on said flat base, a pair of gripping arms extending from said body for receiving said enlarged end to be removably squeezed into and held between said arms, and a non-conductive separating rod, projecting from said long body between said flat base and said gripping arms in a location corresponding to the through hole of said housing when said housing is recieved in said holder; wherein, when said flashlight body is placed in said holder, said separating rod is capable of projecting into said through hole and extending between said batteries, breaking the electrical contact of said batteries and causing the light bulb light to be extinguished.
Claim 3
Dependent Claim
39 words
A flashlight assembly as claimed in claim 1, further including a magnifying lens pivoted near said enlarged end, so that a user may use the light from the flashlight body and the magnifying lens to find small objects conveniently.
Claim 4
Dependent Claim
16 words
A flashlight assembly as claimed in claim 1, wherein said holder is coated with phosphorescent material.
Claim 5
Dependent Claim
26 words
A flashlight assembly as claimed in claim 1, further including a mounting hole and a mounting screw disposed in said long body for mounting said holder.
Claim 6
Dependent Claim
88 words
A flashlight assembly comprising: a flashlight, including a bulb, batteries spring-loaded to abut, and an electrical circuit connected such that when said flashlight is freestanding, said batteries abut to close said circuit and light said bulb; a holder, shaped to fit together with said flashlight, said holder comprising a protrusion; said flashlight and said holder being shaped to fit together in such fashion that said protrusion of said holder is received within said flashlight to separate said abutting batteries and thereby interrupt said electrical circuit within said flashlight.
Claim 7
Dependent Claim
88 words
A flashlight assembly comprising: a flashlight, including a bulb, batteries spring-loaded to abut, and an electrical circuit connected such that when said flashlight is freestanding, said batteries abut to close said circuit and light said bulb; a holder, shaped to fit together with said flashlight, said holder comprising a protrusion; said flashlight and said holder being shaped to fit together in such fashion that said protrusion of said holder is received within said flashlight to separate said abutting batteries and thereby interrupt said electrical circuit within said flashlight.
Claim 8
Dependent Claim
124 words
A flashlight assembly comprising: a flashlight, said flashlight including therein space for one or more batteries and a bulb, and an electrical circuit connecting the batteries with the bulb; a holder shaped to fit together with said flashlight; said holder comprising a protrusion such that, when said holder and said flashlight are fitted together, said protrusion can be received within the body of said flashlight in a relation such that said protrusion breaks said electrical circuit within said flashlight between the bulb and the batteries; whereby when said flashlight is at rest in said holder, said flashlight is not shining, but when said flashlight is manually removed from said holder, said flashlight immediately begins to shine, without any other manual activation by the user.
Claim 9
Dependent Claim
124 words
A flashlight assembly comprising: a flashlight, said flashlight including therein space for one or more batteries and a bulb, and an electrical circuit connecting the batteries with the bulb; a holder shaped to fit together with said flashlight; said holder comprising a protrusion such that, when said holder and said flashlight are fitted together, said protrusion can be received within the body of said flashlight in a relation such that said protrusion breaks said electrical circuit within said flashlight between the bulb and the batteries; whereby when said flashlight is at rest in said holder, said flashlight is not shining, but when said flashlight is manually removed from said holder, said flashlight immediately begins to shine, without any other manual activation by the user.
Claim 10
Dependent Claim
16 words
The flashlight assembly of claim 5, wherein said battery chamber receives exactly two of said batteries.
Claim 11
Dependent Claim
15 words
The flashlight assembly of claim 6, wherein said flashlight includes space for exactly two batteries.
Claim 12
Dependent Claim
16 words
The flashlight assembly of claim 6, wherein said flashlight includes space for a plurality of batteries.
Claim 13
Dependent Claim
19 words
The flashlight assembly of claim 5, wherein said flashlight includes no switching mechanism apart from cooperation with said holder.
Claim 14
Dependent Claim
19 words
The flashlight assembly of claim 6, wherein said flashlight includes no switching mechanism apart from cooperation with said holder.
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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) | 1991-06-07 | 1991-12-07 | 1992-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-07 | 1995-12-07 | 1996-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-07 | 1999-12-07 | 2000-06-07 | $7700.00 | Window Closed / Lapsed |