Patent US5219221A successfully refreshed from Google Patents.
US5219221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp retainer of light source device for endoscope
Assignee: Pentax Corp
•
Filing: 1991-01-17
•
Granted: 1993-06-15
•
Expires: 2011-01-17
Abstract
Abstract A lamp retainer of a light source device, which retains a light source lamp that has two electrodes, at least one of them being on the side thereof. The lamp retainer comprises an electrically conductive heat sink, and an electrically conductive electrode press device that is attached to the heat sink. The press device is biased to resiliently press the electrode from the side thereof, so that the electrode and the heat sink are electrically connected through the press device.
Inventors
- 👤 Shoichi Yamaka
- 👤 Junji Usami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:13
CPC Classifications
F; F21; F21V; F21V29/00; F21V29/50; F21V29/70; F21V29/74; A; A61; A61B; A61B1/00; A61B1/06; A61B1/0661; A61B1/0669; F21V19/00; F21V19/006; F21V19/0065; F21V29/71; F21V29/75; F21V29/76; F21V29/85; F21V29/89
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
183 words
A lamp retainer of a light source device for retaining a light source lamp having at least one side, the light source lamp further having two electrodes, at least one of said electrodes having a side portion, said lamp retainer comprising: an electrically conductive heat sink; and an electrically conductive electrode press means, said electrically conductive electrode press means comprising a portion which is electrically connected to said electrically conductive heat sink; a portion which is electrically connected to said at least one of said electrodes and is movable with respect to said electrically conductive heat sink; and a spring portion which biases said portion which is electrically connected to said at least one of said electrodes, in order to press said at least one of said electrodes, said electrically conductive electrode press means being biased to resiliently press said at least one of said electrodes from said side portion of said at least one of said electrodes, so that said at least one of said electrodes and said electrically conductive heat sink are electrically connected through said electrically conductive electrode press means.
Claim 2
Dependent Claim
183 words
A lamp retainer of a light source device for retaining a light source lamp having at least one side, the light source lamp further having two electrodes, at least one of said electrodes having a side portion, said lamp retainer comprising: an electrically conductive heat sink; and an electrically conductive electrode press means, said electrically conductive electrode press means comprising a portion which is electrically connected to said electrically conductive heat sink; a portion which is electrically connected to said at least one of said electrodes and is movable with respect to said electrically conductive heat sink; and a spring portion which biases said portion which is electrically connected to said at least one of said electrodes, in order to press said at least one of said electrodes, said electrically conductive electrode press means being biased to resiliently press said at least one of said electrodes from said side portion of said at least one of said electrodes, so that said at least one of said electrodes and said electrically conductive heat sink are electrically connected through said electrically conductive electrode press means.
Claim 3
Dependent Claim
58 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 1, wherein said light source lamp has at least one side, and said at least one of said electrodes which is pressed by said electrically conductive electrode press means is on said at least one side of said light source lamp.
Claim 4
Dependent Claim
42 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 1, wherein said at least one electrode is integrally provided on an outer periphery of at least one said side of said light source lamp.
Claim 5
Dependent Claim
41 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 1, wherein said portion which is electrically connected to said at least one of said electrodes is movable against said electrically conductive heat sink.
Claim 6
Dependent Claim
218 words
A lamp retainer of a light source device for retaining a light source lamp that has a rear end portion and at least one side, a first electrode on said rear end portion and a second electrode having at least one side on said at least one side of said light source lamp, said lamp retainer comprising: a first electrically conductive heat sink that secures said rear end portion of said light source lamp, and that is electrically connected to said first electrode; a second electrically conductive heat sink that is spaced apart from said first electrically conductive heat sink; and electrically conductive electrode press means that is attached to said second electrically conductive heat sink, said electrically conductive electrode press means comprising a portion which is electrically connected to said second electrically conductive heat sink; a portion which is electrically connected to said at least one side of said second electrode and is movable with respect to said second electrically conductive heat sink; and a spring portion which biases said portion which is electrically connected to said second electrode, in order to press said second electrode,from said at least one side of said second electrode, so that said second electrode and said second electrically conductive heat sink are electrically connected through said electrically conductive electrode press means.
Claim 7
Dependent Claim
218 words
A lamp retainer of a light source device for retaining a light source lamp that has a rear end portion and at least one side, a first electrode on said rear end portion and a second electrode having at least one side on said at least one side of said light source lamp, said lamp retainer comprising: a first electrically conductive heat sink that secures said rear end portion of said light source lamp, and that is electrically connected to said first electrode; a second electrically conductive heat sink that is spaced apart from said first electrically conductive heat sink; and electrically conductive electrode press means that is attached to said second electrically conductive heat sink, said electrically conductive electrode press means comprising a portion which is electrically connected to said second electrically conductive heat sink; a portion which is electrically connected to said at least one side of said second electrode and is movable with respect to said second electrically conductive heat sink; and a spring portion which biases said portion which is electrically connected to said second electrode, in order to press said second electrode,from said at least one side of said second electrode, so that said second electrode and said second electrically conductive heat sink are electrically connected through said electrically conductive electrode press means.
Claim 8
Dependent Claim
40 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 5, wherein said second electrode is integrally provided on an outer periphery of at least one said side of said light source lamp.
Claim 9
Dependent Claim
44 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 5, wherein said portion which is electrically connected to at least one said side of said second electrode is movable against said second electrically conductive heat sink.
Claim 10
Dependent Claim
217 words
A lamp retainer of a light source device for an endoscope, which retains a light source lamp having a rear end portion and at least one side, a first electrode on said rear end portion and a second electrode having at least one side on said side at least one of said light source lamp, comprising: a first electrically conductive heat sink that secures said rear end portion of said light source lamp, and that is electrically connected to said first electrode; a second electrically conductive heat sink that is spaced apart from said first electrically conductive heat sink; and electrically conductive electrode press means that is attached to said second electrically conductive heat sink, said electrically conductive electrode press means comprising a portion which is electrically connected to said second electrically conductive heat sink; a portion which is electrically connected to said at least one side of said second electrode and is movable with respect to said second electrically conductive heat sink, and a spring portion which biases said portion which is electrically connected to said second electrode, in order to press said second electrode, from said at least one side of said second electrode, so that said second electrode and said second electrically conductive heat sink are electrically connected through said electrically conductive press means.
Claim 11
Dependent Claim
217 words
A lamp retainer of a light source device for an endoscope, which retains a light source lamp having a rear end portion and at least one side, a first electrode on said rear end portion and a second electrode having at least one side on said side at least one of said light source lamp, comprising: a first electrically conductive heat sink that secures said rear end portion of said light source lamp, and that is electrically connected to said first electrode; a second electrically conductive heat sink that is spaced apart from said first electrically conductive heat sink; and electrically conductive electrode press means that is attached to said second electrically conductive heat sink, said electrically conductive electrode press means comprising a portion which is electrically connected to said second electrically conductive heat sink; a portion which is electrically connected to said at least one side of said second electrode and is movable with respect to said second electrically conductive heat sink, and a spring portion which biases said portion which is electrically connected to said second electrode, in order to press said second electrode, from said at least one side of said second electrode, so that said second electrode and said second electrically conductive heat sink are electrically connected through said electrically conductive press means.
Claim 12
Dependent Claim
37 words
A lamp retainer of a light source device for an endoscope according to claim 8, wherein said rear end portion of said light source lamp is secured to said first electrically conductive heat sink by a screw.
Claim 13
Dependent Claim
34 words
A lamp retainer of a light source device for an endoscope according to claim 3, wherein said second electrode is inserted into a bore that is formed in said second electrically conducive heat sink.
Claim 14
Dependent Claim
23 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 10, wherein said bore is chamfered.
Claim 15
Dependent Claim
40 words
A lamp retainer of a light source device for an endoscope according to claim 3, wherein said electrically conductive electrode press means are provided at both sides of said light source lamp and biased to clamp it from both sides.
Claim 16
Dependent Claim
28 words
A lamp retainer of a light source device for an endoscope according to claim 3, wherein said electrically conductive electrode press means is formed from a resilient metal.
Claim 17
Dependent Claim
39 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 8, wherein said second electrode is integrally provided on an outer periphery of least one said side of said light source lamp.
Claim 18
Dependent Claim
45 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 8, wherein said electrically conductive electrode press means are provided at only one side of said second electrode and biased to clamp said second electrode from one side.
Claim 19
Dependent Claim
44 words
A lamp retainer of a light source device for retaining a light source lamp according to claim 8, wherein said portion which is electrically connected to at least one said side of said second electrode is movable against said second electrically conductive heat sink.
References Cited (Backward Citations)
US1758775A
Cited
US2662220A
Cited
US3020451A
Cited
US3541492A
Cited
JPS57185303A
Cited
JPS5825582A
Cited
JPS5825583A
Cited
US4572164A
Cited
JPS60148613A
Cited
JPS60148614A
Cited
JPS60208005A
Cited
JPS6320023A
Cited
JPS63191311A
Cited
US4887154A
Cited
JPH0280109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-14 | 1996-12-14 | 1997-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-14 | 2000-12-14 | 2001-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-14 | 2004-12-14 | 2005-06-15 | $7700.00 | Window Closed / Lapsed |