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US4885666A Expired / Lapsed US ⏱️ 0.0 years remaining

Touchably-operating miniature flashlight

Assignee: Individual
•
Filing: 1989-01-24
•
Granted: 1989-12-05
•
Expires: 2009-01-24
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Abstract

Abstract A flashlight includes a housing having at least a battery socket for storing batteries therein, a bulb detachably mounted on an upper portion of the housing, a flexible sleeve jacket outside the housing, and a pair of spring plates connected between a power circuit formed by the batteries, whereby upon a depression on the sleeve against a recess portion of the housing having the two spring plates formed in the recess portion, the two plates are contacted to close the power circuit for lighting the bulb in an easy way.

Inventors

  • 👤 Chen-Tsung Yu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 09:28
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; F21L; F21L4/00; F21L4/005

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 515 words
A miniature flashlight comprising: a housing having two battery sockets disposed on a right and a left sides of the housing, a bottom plate formed on a bottom of the housing, an upper plate formed on an upper portion of the housing having a bulb socket formed in a central portion of the upper plate and a recess portion formed in a rear portion of said housing opposite to said two battery sockets; a bulb detachably mounted in said bulb socket of said housing; two batteries respectively held in said two battery sockets in said housing and electrically connected in series for forming a power circuit between a bulb terminal and a lamp base of the bulb for lighting said bulb; two spring contactor plates normally resiliently open and operatively closed forming a part of said power circuit of said bulb for lighting said bulb; a flexible sleeve jacketed on said housing; and a top cover mounted on said upper plate confining said sleeve between said top cover and said bottom plate, said top cover including a horizontal plate having a central hole for protruding said bulb outwardly, a pair of side plates protruding downwardly from two opposite sides of said horizontal plate each side plate having an extension engageable with a side hole formed in said upper plate of said housing so that said top cover can be mounted on said housing; said housing, said sleeve and said top cover being made of electrical insulating materials, whereby upon a depression of the sleeve on the recess portion, said two spring contactor plates are contacted to close the power circuit for lighting said bulb; the improvement which comprises: said housing including a first battery socket having a first upper clip formed on an upper portion of the battery socket under the upper plate pertaining a bulb-terminal contactor plate for electrically connecting a bulb terminal, and a first lower clip formed on a lower portion of the battery socket on the bottom plate pertaining an outer spring contactor plate protruding rearwardly into said recess portion of said housing, said first battery socket having a first battery held therein with a positive terminal of the first battery contacting the first upper clip and a negative terminal of the first battery contacting the first lower clip; and a second battery socket having a second upper clip formed on its upper portion pertaining a lamp-base contactor plate electrically connecting a lamp base of said bulb, and a second lower clip formed on a lower portion of the second battery socket pertaining an inner spring contactor plate protruding rearwardly into the recess portion of said housing to be fixed on a stem protruding rearwardly from a central partition plate separating the two battery sockets so as to be operatively contacted by said outer spring contactor plate to close the power circuit for lighting said bulb, a second battery held in said second battery socket having a postive terminal of the second battery contacting said second lower clip and having a negative terminal of the battery contacting said second upper clip.
Claim 2
Dependent Claim 515 words
A miniature flashlight comprising: a housing having two battery sockets disposed on a right and a left sides of the housing, a bottom plate formed on a bottom of the housing, an upper plate formed on an upper portion of the housing having a bulb socket formed in a central portion of the upper plate and a recess portion formed in a rear portion of said housing opposite to said two battery sockets; a bulb detachably mounted in said bulb socket of said housing; two batteries respectively held in said two battery sockets in said housing and electrically connected in series for forming a power circuit between a bulb terminal and a lamp base of the bulb for lighting said bulb; two spring contactor plates normally resiliently open and operatively closed forming a part of said power circuit of said bulb for lighting said bulb; a flexible sleeve jacketed on said housing; and a top cover mounted on said upper plate confining said sleeve between said top cover and said bottom plate, said top cover including a horizontal plate having a central hole for protruding said bulb outwardly, a pair of side plates protruding downwardly from two opposite sides of said horizontal plate each side plate having an extension engageable with a side hole formed in said upper plate of said housing so that said top cover can be mounted on said housing; said housing, said sleeve and said top cover being made of electrical insulating materials, whereby upon a depression of the sleeve on the recess portion, said two spring contactor plates are contacted to close the power circuit for lighting said bulb; the improvement which comprises: said housing including a first battery socket having a first upper clip formed on an upper portion of the battery socket under the upper plate pertaining a bulb-terminal contactor plate for electrically connecting a bulb terminal, and a first lower clip formed on a lower portion of the battery socket on the bottom plate pertaining an outer spring contactor plate protruding rearwardly into said recess portion of said housing, said first battery socket having a first battery held therein with a positive terminal of the first battery contacting the first upper clip and a negative terminal of the first battery contacting the first lower clip; and a second battery socket having a second upper clip formed on its upper portion pertaining a lamp-base contactor plate electrically connecting a lamp base of said bulb, and a second lower clip formed on a lower portion of the second battery socket pertaining an inner spring contactor plate protruding rearwardly into the recess portion of said housing to be fixed on a stem protruding rearwardly from a central partition plate separating the two battery sockets so as to be operatively contacted by said outer spring contactor plate to close the power circuit for lighting said bulb, a second battery held in said second battery socket having a postive terminal of the second battery contacting said second lower clip and having a negative terminal of the battery contacting said second upper clip.

References Cited (Backward Citations)

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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) 1992-12-04 1993-06-05 1993-12-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-12-04 1997-06-05 1997-12-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-12-04 2001-06-05 2001-12-05 $7700.00 Window Closed / Lapsed

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