Patent US5014171A successfully refreshed from Google Patents.
US5014171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color changeable flashlight
Assignee: Mag Instrument Inc
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Filing: 1989-11-07
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Granted: 1991-05-07
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Expires: 2009-11-07
Abstract
Abstract A flashlight is provided that can be switched between a white light mode wherein it produces white light and a color mode wherein it produces primarily light of a particular color such as red, which can be easily operated with the same hand that holds the flashlight. A hood (34 of FIG. 2) of material that passes only red light is mounted on the lens (40) of the flashlight, and the periphery of the lens is mounted on a select member (46) that can be moved forwardly and rearwardly with respect to the rest of the flashlight. When the select member is moved to its rearward position, the hood intercepts substantially all of the light passing between a lamp (32) and the reflector (36) of the flashlight, so that primarily red light is produced by the flashlight. When the select member is moved to a forward position (46A), the hood lies forward of most of the light rays passing between the lamp and the reflector, so the flashlight produces primarily white light. A person holding a flashlight in the usual manner, can use fingers of the same hand holding the flashlight to move the select member.
Inventors
- 👤 George T. Price, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:37
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/08; F21V9/083; F21L; F21L2/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
219 words
A flashlight comprising: 1 a main section which includes a frame with front and rear portions forming a battery compartment, a lamp at said frame front portion, a reflector lying about said lamp, and a switch which connects batteries in said compartment to said lamp, said lamp having a light emitting part; a hood of light passing filter material which passes primarily light of a selected color; a select member moveably mounted on said main section and coupled to said hood to support said hood in movement between a color mode wherein said hood lies about said lamp so most of the light passing in paths between said lamp and reflector passes through said material of said hood, and a white light mode wherein most of said filter material of said hood lies away from said paths so most of the light passing between said lamp and reflector does not pass through said filter material of said hood; and a lens lying forward of said lamp; said hood being mounted on said lens, and said select member supporting said lens in movement between a rearward lens position wherein said hood is in said color mode and a forward lens position wherein said lens is forward of said rearward lens position and supports said hood in said white light mode.
Claim 2
Dependent Claim
219 words
A flashlight comprising: 1 a main section which includes a frame with front and rear portions forming a battery compartment, a lamp at said frame front portion, a reflector lying about said lamp, and a switch which connects batteries in said compartment to said lamp, said lamp having a light emitting part; a hood of light passing filter material which passes primarily light of a selected color; a select member moveably mounted on said main section and coupled to said hood to support said hood in movement between a color mode wherein said hood lies about said lamp so most of the light passing in paths between said lamp and reflector passes through said material of said hood, and a white light mode wherein most of said filter material of said hood lies away from said paths so most of the light passing between said lamp and reflector does not pass through said filter material of said hood; and a lens lying forward of said lamp; said hood being mounted on said lens, and said select member supporting said lens in movement between a rearward lens position wherein said hood is in said color mode and a forward lens position wherein said lens is forward of said rearward lens position and supports said hood in said white light mode.
Claim 3
Dependent Claim
56 words
The flashlight described in claim 1 wherein: said lens has a peripheral portion, said select member which supports said lens has a forward portion that engages said peripheral portion of said lens to support it, and said select member has a rearward portion that is slideable in forward and rearward directions on said frame front portion.
Claim 4
Dependent Claim
105 words
The flashlight described in claim 2 wherein: said select member rear portion surrounds said frame front portion, said frame front portion has an annular groove and an elastomeric ring lying primarily in said groove and projecting outwardly therefrom, and said select member rear portion has an internal surface that has forward and rearward internal annular grooves that receive said projecting elastomeric ring portion respectively in forward and rearward member positions wherein said lens is held in said lens forward and rearward positions, whereby to retain said member and hood in one of said positions despite an at least temporary vacuum or pressure behind said lens.
Claim 5
Dependent Claim
191 words
In a flashlight that includes a frame with a battery compartment for holding at least one battery, a lamp, a switch in said frame connecting a battery in said compartment to said lamp, a reflector which surrounds said lamp and reflects light from said lamp in a predetermined generally forward direction, and a lens lying in front of said reflector, said frame having an outside extending around said reflector, the improvement comprising: a hood which passes primarily light of a selected color; a select member which is supported on said frame in movement between first and second positions, said hood being coupled to said select member to be moved by said select member between a color mode position at which said hood intercepts most of the light passing along paths from said lamp to said reflector, and a white light position at which said hood does not intercept most of the light passing along said paths; said select member lies substantially on the outside of said frame so said member can be readily moved between said first and second positions by fingers of the same hand that is holding said frame.
Claim 6
Dependent Claim
191 words
In a flashlight that includes a frame with a battery compartment for holding at least one battery, a lamp, a switch in said frame connecting a battery in said compartment to said lamp, a reflector which surrounds said lamp and reflects light from said lamp in a predetermined generally forward direction, and a lens lying in front of said reflector, said frame having an outside extending around said reflector, the improvement comprising: a hood which passes primarily light of a selected color; a select member which is supported on said frame in movement between first and second positions, said hood being coupled to said select member to be moved by said select member between a color mode position at which said hood intercepts most of the light passing along paths from said lamp to said reflector, and a white light position at which said hood does not intercept most of the light passing along said paths; said select member lies substantially on the outside of said frame so said member can be readily moved between said first and second positions by fingers of the same hand that is holding said frame.
Claim 7
Dependent Claim
46 words
The improvement described in claim 4 wherein: said hood is mounted on said lens, and said lens has a peripheral portion supported by said select member in rearward and forward movement on said frame to move said hood respectively between said color and white light positions.
Claim 8
Dependent Claim
91 words
The improvement described in claim 5 wherein: said lens and the region where said lens peripheral portion is supported by said select member, are all substantially waterproof, and said select member surrounds and slides on said frame; and including: an O-ring disposed between said frame and select member with one of them having a deep O-ring groove for retaining said O-ring and allowing it to project slightly therefrom, and the other having first and second annular grooves that receive said O-ring respectively in forward and rearward positions of said select member.
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) | 1994-05-06 | 1994-11-05 | 1995-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-06 | 1998-11-05 | 1999-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-06 | 2002-11-05 | 2003-05-07 | $7700.00 | Window Closed / Lapsed |