US4473870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp housing
Assignee: Carlingswitch Inc
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Filing: 1983-05-31
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Granted: 1984-09-25
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Expires: 2003-05-31
Abstract
Abstract A switch case has a lens member pivotally mounted in it so that a lamp resistor circuit provided in the lens member are connected to one another without solder, and so that the circuit components themselves prevent movement of the lens member in its pivotable mount.
Inventors
- 👤 Richard W. Sorenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:33
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/16; H01H9/161
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
281 words
A lamp housing comprising a case of insulating plastic having a generally rectangular upwardly open cavity and a flanged bezel surrounding said cavity, said case having side and end walls integrally connected to a bottom wall, said bottom wall having slots, at least two contact terminals in said slots, said side walls defining aligned openings, a transparent lens member having side walls with projecting portions received in and supported by said aligned openings, said member having a generally rectangular shape and being located in said case cavity so that its generally flat outer surface is flush with that of said flanged bezel, said member having end walls, one of which end walls has inwardly projecting spaced portions defining a resistor recess, said member also having portions defining a lamp recess, a lamp in said lamp recess of said lens member, a resistor circuit including lamp lead wires associated wth said lamp and including a coiled compression spring one end of which spring engages one of said terminals and the other end of which spring engages a lamp lead wire of said resistor circuit, a resistor in said resistor circuit, said resistor located in said resistor recess defined by said member and so oriented that one end of said resistor engages the other of said terminals and the other end of said resistor engages another lamp lead wire in said resistor recess so that said member is held in biased relation by said spring whereby said resistor circuit is closed when said terminals have a voltage impressed thereon to light said lamp through said resistor, and said resistor is urged into abutting relation to the other of said terminals by said spring.
Claim 2
Dependent Claim
281 words
A lamp housing comprising a case of insulating plastic having a generally rectangular upwardly open cavity and a flanged bezel surrounding said cavity, said case having side and end walls integrally connected to a bottom wall, said bottom wall having slots, at least two contact terminals in said slots, said side walls defining aligned openings, a transparent lens member having side walls with projecting portions received in and supported by said aligned openings, said member having a generally rectangular shape and being located in said case cavity so that its generally flat outer surface is flush with that of said flanged bezel, said member having end walls, one of which end walls has inwardly projecting spaced portions defining a resistor recess, said member also having portions defining a lamp recess, a lamp in said lamp recess of said lens member, a resistor circuit including lamp lead wires associated wth said lamp and including a coiled compression spring one end of which spring engages one of said terminals and the other end of which spring engages a lamp lead wire of said resistor circuit, a resistor in said resistor circuit, said resistor located in said resistor recess defined by said member and so oriented that one end of said resistor engages the other of said terminals and the other end of said resistor engages another lamp lead wire in said resistor recess so that said member is held in biased relation by said spring whereby said resistor circuit is closed when said terminals have a voltage impressed thereon to light said lamp through said resistor, and said resistor is urged into abutting relation to the other of said terminals by said spring.
Claim 3
Dependent Claim
40 words
The lamp housing of claim 1 wherein said transparent plastic member has an inner surface spaced from said lamp and parallel said flat outer surface, said inner surface being striated to provide a scattering effect for the light so emitted.
Claim 4
Dependent Claim
234 words
A lamp housing comprising a case of insulating plastic having a generally rectangular upwardly open cavity and a flanged bezel surrounding said cavity, said case having side and end walls integrally connected to a bottom wall, said bottom wall having slots defined therein, contact terminals received in said slots, said case side walls defining aligned openings, a lens member supported by said aligned openings and located in said case cavity so that its generally flat outer surface is flush with that of said flanged bezel, said lens member having end walls, a lamp retained in said member, a resistor with condutive end portions and retained in a recess defined in one end wall of said lens member, lamp lead wires one of which engages one end portion of said resistor and another lamp lead wire retained by the other end wall of said lens member, said terminals having resilient portions projecting upwardly from said bottom wall, said resistor being so located in said lens member that it engages one said resilient terminal portion, said another lamp lead wire having an end portion adapted to engage said resilient upwardly projecting portion of said other terminal whereby at least one of said terminals is deformed at least slightly and said lens member is secured in said case by such resilient deformation and said lamp is lit as a result of impressing a voltage across said terminals.
Claim 5
Dependent Claim
234 words
A lamp housing comprising a case of insulating plastic having a generally rectangular upwardly open cavity and a flanged bezel surrounding said cavity, said case having side and end walls integrally connected to a bottom wall, said bottom wall having slots defined therein, contact terminals received in said slots, said case side walls defining aligned openings, a lens member supported by said aligned openings and located in said case cavity so that its generally flat outer surface is flush with that of said flanged bezel, said lens member having end walls, a lamp retained in said member, a resistor with condutive end portions and retained in a recess defined in one end wall of said lens member, lamp lead wires one of which engages one end portion of said resistor and another lamp lead wire retained by the other end wall of said lens member, said terminals having resilient portions projecting upwardly from said bottom wall, said resistor being so located in said lens member that it engages one said resilient terminal portion, said another lamp lead wire having an end portion adapted to engage said resilient upwardly projecting portion of said other terminal whereby at least one of said terminals is deformed at least slightly and said lens member is secured in said case by such resilient deformation and said lamp is lit as a result of impressing a voltage across said terminals.
Claim 6
Dependent Claim
49 words
The lamp housing of claim 3 wherein said resilient upwardly projecting portions of said terminals comprise offset end portions integrally connected to intermediate C-shaped portions respectively, said terminal portions formed from an initially flat strip of metal which is so bent as to define said offset and C-shaped portions.
Claim 7
Dependent Claim
43 words
The lamp housing of claim 4 wherein said transparent plastic lens member has depending side walls defining aligned projections received in said aligned side wall case openings, and one of said member end walls defining inwardly projecting spaced portions defining said resistor recess.
Claim 8
Dependent Claim
43 words
The lamp housing of claim 3 wherein said transparent plastic lens member has depending side walls defining aligned projections received in said aligned side wall case openings, and one of said member end walls defining inwardly projecting spaced portions defining said resistor recess.
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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) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |