Patent US4803600A successfully refreshed from Google Patents.
US4803600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire for a rod-shaped fluorescent lamp
Assignee: US Philips Corp
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Filing: 1988-01-14
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Granted: 1989-02-07
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Expires: 2008-01-14
Abstract
Abstract A luminaire for a rod-shaped fluorescent lamp provided with pin bases at both ends and having an elongated support profile whose width is only slightly larger or smaller than the diameter of the lamp envelope and which at both ends has sockets provided with contacts. Each socket has a groove to accommodate the base pins when inserting the lamp in an axially parallel manner. Intermediate members of an insulating material are arranged on the lamp bases, while the rear side of each intermediate member is provided with a cross limb extending parallel to the base pins and being formed in such a manner that the individual base pins are located on different sides of the cross limb. When inserting the lamp in the luminaire, the intermediate member engages the groove of a socket in a lock-tight manner, whereby the base pins come into contact with the socket contacts.
Inventors
- 👤 Franz Pepping
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:58
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/94; H01R33/942; F; F21; F21V; F21V19/00; F21V19/0075; F21V19/008; F21V19/0085; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
146 words
A luminaire for a rod-shaped fluorescent lamp provided with pin bases at both ends and having an elongated support profile whose width is only slightly larger or smaller than the diameter of the lamp envelope and which at both ends has sockets provided with contacts each having a groove to accommodate the base pins when inserting the lamp in an axially parallel manner, characterized in that intermediate members of an insulating material are arranged on the lamp bases, the rear side of each member being provided with a cross limb extending parallel to the base pins and being formed in such a manner that the individual base pins are located on different sides of the cross limb which, when inserting the lamp in the luminaire, engages the groove of a socket in a lock-tight manner, whereby the base pins come into contact with the socket contacts.
Claim 2
Dependent Claim
146 words
A luminaire for a rod-shaped fluorescent lamp provided with pin bases at both ends and having an elongated support profile whose width is only slightly larger or smaller than the diameter of the lamp envelope and which at both ends has sockets provided with contacts each having a groove to accommodate the base pins when inserting the lamp in an axially parallel manner, characterized in that intermediate members of an insulating material are arranged on the lamp bases, the rear side of each member being provided with a cross limb extending parallel to the base pins and being formed in such a manner that the individual base pins are located on different sides of the cross limb which, when inserting the lamp in the luminaire, engages the groove of a socket in a lock-tight manner, whereby the base pins come into contact with the socket contacts.
Claim 3
Dependent Claim
32 words
A luminaire as claimed in claim 1, characterized in that the upper edge of the cross limb has a widening which locks in a lid-type relationship with the groove in the socket.
Claim 4
Dependent Claim
19 words
A luminaire as claimed in claim 2, characterized in that the cross limb is S-shaped in its cross section.
Claim 5
Dependent Claim
46 words
A luminaire as claimed in claim 3, characterized in that for inserting the two base pins each intermediate member has two contact sleeves which have lengths projecting beyond the base pins and which mate with the socket contacts accommodated in the socket at a corresponding depth.
Claim 6
Dependent Claim
27 words
A luminaire as claimed in claim 4, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
Claim 7
Dependent Claim
27 words
A luminaire as claimed in claim 3, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
Claim 8
Dependent Claim
27 words
A luminaire as claimed in claim 2, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
Claim 9
Dependent Claim
46 words
A luminaire as claimed in claim 2, characterized in that for inserting the two base pins each intermediate member has two contact sleeves which have lengths projecting beyond the base pins and which mate with the socket contacts accommodated in the socket at a corresponding depth.
Claim 10
Dependent Claim
27 words
A luminaire as claimed in claim 8, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
Claim 11
Dependent Claim
19 words
A luminaire as claimed in claim 1, characterized in that the cross limb is S-shaped in its cross section.
Claim 12
Dependent Claim
46 words
A luminaire as claimed in claim 10, characterized in that for inserting the two base pins each intermediate member has two contact sleeves which have lengths projecting beyond the base pins and which mate with the socket contacts accommodated in the socket at a corresponding depth.
Claim 13
Dependent Claim
27 words
A luminaire as claimed in claim 11, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
Claim 14
Dependent Claim
27 words
A luminaire as claimed in claim 10, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
Claim 15
Dependent Claim
46 words
A luminaire as claimed in claim 1, characterized in that for inserting the two base pins each intermediate member has two contact sleeves which have lengths projecting beyond the base pins and which mate with the socket contacts accommodated in the socket at a corresponding depth.
Claim 16
Dependent Claim
27 words
A luminaire as claimed in claim 14, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
Claim 17
Dependent Claim
27 words
A luminaire as claimed in claim 1, characterized in that each intermediate member is formed with a cylindrical sleeve on its front side, accommodating the lamp base.
References Cited (Backward Citations)
US4298918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |