Patent US3775731A successfully refreshed from Google Patents.
US3775731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulb assembly
Assignee: Robert Bosch GmbH
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Filing: 1972-05-18
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Granted: 1973-11-27
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Expires: 1992-05-18
Abstract
Abstract A lamp socket assembly has a plastic housing and a transversal flange surrounding the same. Spaced resilient tabs are arranged on the flange for snapping into a cut-out of a reflector. Additional spaced tabs having shoulders at the extended ends thereof are arranged on the flange with spacers provided therebetween. The height of the additional tabs exceeds that of the spacers. A conductive bulb carrier for engaging the base of a bulb from one end of the housing is held between the shoulders and the ends of the spacers. A conductive resiliently mounted plug engages a center electrode of a bulb and urges the bulb into engagement with the conductive bulb carrier.
Inventors
- 👤 E Merki
- 👤 O Gorg
- 👤 J Grupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:38
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/006; F21V19/0065; F21S; F21S41/00; F21S41/10; F21S41/19; F21S41/198
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
125 words
In a lamp socket assembly, a combination comprising a housing at least a portion of which is made from an electrically insulating material, said housing comprising a substantially cylindrical hollow portion having an open end for receiving the base of a bulb, a transversal flange surrounding said cylindrical portion and having a supporting surface around said open end, at least two first resilient engaging means projecting from said supporting surface so as to engage the edge of a cutout into which said housing is introduced, and second resilient engaging means projecting from said surface; and electrically conductive carrier means engageable with said second engaging means and establishing electrical contact with one of the electrodes of the bulb whose base is received in said cylindrical portion.
Claim 2
Dependent Claim
125 words
In a lamp socket assembly, a combination comprising a housing at least a portion of which is made from an electrically insulating material, said housing comprising a substantially cylindrical hollow portion having an open end for receiving the base of a bulb, a transversal flange surrounding said cylindrical portion and having a supporting surface around said open end, at least two first resilient engaging means projecting from said supporting surface so as to engage the edge of a cutout into which said housing is introduced, and second resilient engaging means projecting from said surface; and electrically conductive carrier means engageable with said second engaging means and establishing electrical contact with one of the electrodes of the bulb whose base is received in said cylindrical portion.
Claim 3
Dependent Claim
42 words
A combination as defined in claim 1, wherein said flange is provided at its supporting surface with an annular face removed a predetermined distance from said supporting surface to thereby form an annular ridge in the region of periphery of said flange.
Claim 4
Dependent Claim
36 words
A combination as defined in claim 1, wherein said flange has a cut-out, and said conductive carrier means has a lug extending from one side of said flange to the other side thereof through said cut-out.
Claim 5
Dependent Claim
14 words
A combinatioN as defined in claim 3, wherein said cut-out has a rectangular shape.
Claim 6
Dependent Claim
26 words
A combination as defined in claim 1, further comprising protective cap means for covering said other end of said housing and releasably connected to the latter.
Claim 7
Dependent Claim
46 words
A combination as defined in claim 5, wherein said flange has an annular face on the side of said supporting surface, said protective cap including resilient snapping means which snap over said flange and engage said annular face to thereby lock said cap to said housing.
Claim 8
Dependent Claim
126 words
A combination as defined in claim 1, wherein said second resilient engaging means comprises at least two spaced tabs projecting from said supporting surface, each tab having a locking shoulder at its projecting end at a predetermined distance above said supporting surface; said housing further comprising at least two spacers in the region of said tabs and projecting from said supporting surface a distance approximately equal to said predetermined distance; and said conductive carrier means comprising a substantially flat annular ring operative to radially deflect said spaced tabs in response to passage of said ring over said locking shoulders and being held by said shoulders in abutment with said spacers once the ring passes the shoulders and is spaced said predetermined distance from said supporting surface.
Claim 9
Dependent Claim
62 words
A combination as defined in claim 7, wherein said conductive carrier means further comprises two diametrically opposite supporting arms projecting from said annular ring toward said other end when said ring is held by said spaced tabs and said spacers, each supporting arm having at its projecting end a cutout for engaging a guide pin mounted on the base of the bulb.
Claim 10
Dependent Claim
45 words
A combination as defined in claim 7, wherein said spacers are positioned on said supporting surface in the region of said supporting arms of said locked ring, each spacer engaging a respective arm to thereby prevent the latter from being deflected in a radial direction.
Claim 11
Dependent Claim
50 words
A combination as defined in claim 1, wherein said cylindrical portion has another end spaced from said open end; and further comprising electrical contact means arranged at the other end of said cylindrical portion and contacting the other electrode of the bulb whose base is received in said cylindrical portion.
Claim 12
Dependent Claim
89 words
A combination as defined in claim 10, wherein said electrical contact means comprises a conductive plug movable axially in relation to said other end of said cylindrical portion; limiting means for confining said conductive plug to axial movement between two positions; biasing means for urging said conductive plug to one of said positions, said conductive plug being held in a further position intermediate said two positions in response to engagement of said conductive plug with said other electrode of the bulb whose base is received in said cylindrical portion.
Claim 13
Dependent Claim
52 words
A combination as defined in claim 11, wherein said housing includes abutment means at said other end of said cylindrical portion; said limiting means including a transverse holding member connected to said conductive plug, and said biasing means comprising a helical spring compressed between said abutment means and said transverse holding member.
Claim 14
Dependent Claim
64 words
A combination as defined in claim 11, wherein said conductive plug is in the shape of a flat plate having spaced projections, and wherein said limiting means comprises a central slotted portion made from electrically insulating material, said plate being slidably mounted in the slot of said slotted portion, and said projections permitting said plate to slide between two axial positions in said slot.
References Cited (Backward Citations)
US2741747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |