US3784135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevation mechanism
Assignee: Eastman Kodak Co
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Filing: 1972-03-07
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Granted: 1974-01-08
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Expires: 1992-03-07
Abstract
Abstract An elevation mechanism for varying the angle of a main housing relative to a base pivoted to the housing is disclosed. At the front of the base is provided a series of vertically disposed openings or indentations into one of which a detent finger supported by the front of the housing is adapted to be inserted. The finger preferably comprises a part of an operational member having spring members and a operating surface whereby pressure applied to the operating surface will compress the spring members and retract the finger to permit rotation of the housing relative to the base. When pressure is withdrawn from the operating surface the spring members urge the finger into an opening in the base to establish the desired angle of the base relative to the housing.
Inventors
- 👤 W Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:19
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/10; F16B7/105; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; F16M2200/00; F16M2200/02; F16M2200/021; F16M2200/024; Y; Y10; Y10S; Y10S248/00; Y10S248/917; Y10S248/919; Y10S248/922; Y10S248/923
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
221 words
In a microfilm viewer including a base having a first wall and a housing pivotally connected to said base, said housing having a second wall spaced from said first wall, an elevation mechanism for adjusting the angle of elevation of said housing relative to said base and for thereby adjusting the angle of viewing of said viewer, comprising: a means on said first wall for defining a plurality of detent bearing surfaces disposed vertically at different elevations; b an operating member carried by said second wall of said housing, said operating member including: 1 a substantially horizontal member having a manually manipulable portion extending through said second wall; 2 a downwardly extending angled detent member having a detent portion adapted to engage one of said detent bearing surfaces; and 3 downwardly extending spring member means having a portion adapted to engage said second wall, said spring member means urging said detent member into engagement with one oF said detent bearing surfaces; and c means on said second wall cooperating with said manually manipulable portion of said operating member for effecting manual manipulation of said operating member to selectively move said detent member into and out of engagement with a selected one of said detent bearing surfaces to thereby selectively adjust the angle of elevation of said housing relative to said base.
Claim 2
Dependent Claim
221 words
In a microfilm viewer including a base having a first wall and a housing pivotally connected to said base, said housing having a second wall spaced from said first wall, an elevation mechanism for adjusting the angle of elevation of said housing relative to said base and for thereby adjusting the angle of viewing of said viewer, comprising: a means on said first wall for defining a plurality of detent bearing surfaces disposed vertically at different elevations; b an operating member carried by said second wall of said housing, said operating member including: 1 a substantially horizontal member having a manually manipulable portion extending through said second wall; 2 a downwardly extending angled detent member having a detent portion adapted to engage one of said detent bearing surfaces; and 3 downwardly extending spring member means having a portion adapted to engage said second wall, said spring member means urging said detent member into engagement with one oF said detent bearing surfaces; and c means on said second wall cooperating with said manually manipulable portion of said operating member for effecting manual manipulation of said operating member to selectively move said detent member into and out of engagement with a selected one of said detent bearing surfaces to thereby selectively adjust the angle of elevation of said housing relative to said base.
Claim 3
Dependent Claim
28 words
The elevation mechanism of claim 1 wherein said defining a plurality of bearing surfaces comprises means defining a plurality of vertically disposed openings in said first wall means.
Claim 4
Dependent Claim
28 words
The elevation mechanism of claim 1 wherein said defining a plurality of bearing surfaces comprises means defining a plurality of vertically disposed indentations in said first wall means.
Claim 5
Dependent Claim
27 words
The elevation mechanism of claim 1 wherein said means for effecting includes a protruberance on said second wall, spaced from said manipulable portion of said operating member.
Claim 6
Dependent Claim
26 words
The elevation mechanism of claim 1 wherein said spring member means includes first and second downwardly depending sinuously shaped spring elements respectively flanking said detent member.
Claim 7
Dependent Claim
31 words
The elevation mechanism of claim 1 wherein said operating member includes a retaining element depending from said horizontal member thereof and adapted to retain said operating member on said second wall.
References Cited (Backward Citations)
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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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |