Patent US5005947A successfully refreshed from Google Patents.
US5005947A
Expired / Lapsed
US
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Device for fixing an optical member such as a filter to a support
Assignee: Airbus Group SAS
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Filing: 1989-09-27
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Granted: 1991-04-09
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Expires: 2009-09-27
Abstract
Abstract For fixing an optical member such as a filter (12) to a support (10), more particularly for performing infrared observations on an artificial satellite, use is made of a device (18) having clamps (20) screwed into the support (10) and whose opposite ends respectively bear on the support and on the filter, a force distribution shim (26) being interposed between each clamp (20) and the filter (12). The tightening force is calibrated by means of one or more elastic washers (28) placed between the head of each fixing screw (22) and the corresponding clamp. Separating strips (24), preferably made from gold, are placed between the filter and the adjacent parts, to the right of shims (26).
Inventors
- 👤 Gerard Sibilo
- 👤 Michel Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:40
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/028; G02B26/00; G02B26/007; G02B7/006; G02B7/008; G02B7/18; G02B7/181
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
161 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end of said clamp bears on the support (10) and whereof a second end of said clamp bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw (22) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, said shim along with said optical member and said support providing flat substantially adjacent surfaces, separating strips (24) of a thermally conductive malleable material being interposed along said flat surfaces between said optical member, the support, and the shim, said second end of said clamp (20) and the shim (26) being in contact by surfaces defining a swivel bearing.
Claim 2
Dependent Claim
161 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end of said clamp bears on the support (10) and whereof a second end of said clamp bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw (22) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, said shim along with said optical member and said support providing flat substantially adjacent surfaces, separating strips (24) of a thermally conductive malleable material being interposed along said flat surfaces between said optical member, the support, and the shim, said second end of said clamp (20) and the shim (26) being in contact by surfaces defining a swivel bearing.
Claim 3
Dependent Claim
30 words
Device according to claim 1, wherein the second end of the clamp (20) bears on a V-section recess (26a) formed on the shim (26) by a circular arc-section projection (20b).
Claim 4
Dependent Claim
126 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end bears on the support (10) and whereof a second end bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw (22) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, separating strips (24) of a thermally conductive malleable material being interposed between each optical member, the support, and the shim, and wherein the separating strips (24) are pure gold strips.
Claim 5
Dependent Claim
126 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end bears on the support (10) and whereof a second end bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw (22) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, separating strips (24) of a thermally conductive malleable material being interposed between each optical member, the support, and the shim, and wherein the separating strips (24) are pure gold strips.
Claim 6
Dependent Claim
132 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end bears on the support (10) and whereof a second end bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw (22) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, separating strips (24) of a thermally conductive malleable material being interposed between each optical member, the support, and the shim, and wherein the support (10), screws (22) and clamps (20) are made from the same material.
Claim 7
Dependent Claim
132 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end bears on the support (10) and whereof a second end bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw (22) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, separating strips (24) of a thermally conductive malleable material being interposed between each optical member, the support, and the shim, and wherein the support (10), screws (22) and clamps (20) are made from the same material.
Claim 8
Dependent Claim
18 words
Device according to claim 4, wherein the support (10), screws (22) and clamps (20) are made from titanium.
Claim 9
Dependent Claim
192 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end bears on the support (10) and whereof a second end bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw 922) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, separating strips (24) of a thermally conductive malleable material being interposed between each optical member, the support, and the shim, and wherein the optical member is a circular variable filter (12) in the form of a ring segment and the support is a wheel (10) having a circular arc slit (10c) facing the filter, and centered on an axis of rotation of said wheel, whereby different portions of the filter can be brought in front of an optical axis of an infrared observation system traversing said slit, by rotating said wheel around said axis of rotation.
Claim 10
Dependent Claim
192 words
Device for fixing at least one optical member (12) to a support (10), characterized in that it comprises at least one clamp (20), whereof a first end bears on the support (10) and whereof a second end bears on the optical member (12) via a shim (26), the clamp being traversed between said ends by at least one fixing screw 922) screwed into the support, at least one elastic washer (28) being fitted between the clamp and a head of said screw, so as to tighten said optical member against the support with a calibrated force, separating strips (24) of a thermally conductive malleable material being interposed between each optical member, the support, and the shim, and wherein the optical member is a circular variable filter (12) in the form of a ring segment and the support is a wheel (10) having a circular arc slit (10c) facing the filter, and centered on an axis of rotation of said wheel, whereby different portions of the filter can be brought in front of an optical axis of an infrared observation system traversing said slit, by rotating said wheel around said axis of rotation.
Claim 11
Dependent Claim
24 words
Device according to claim 6, wherein several clamps (20) bear on the filter (12) in the vicinity of an inner edge of the latter.
References Cited (Backward Citations)
GB1312507A
Cited
US3758200A
Cited
US4043646A
Cited
US4176916A
Cited
US4302078A
Cited
US4536057A
Cited
US4492429A
Cited
US4405206A
Cited
US4448000A
Cited
US4586787A
Cited
US4610517A
Cited
JPS6088914A
Cited
US4723833A
Cited
US4856872A
Cited
JPS63311319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |