Patent US3373958A successfully refreshed from Google Patents.
Patent US4931818A successfully refreshed from Google Patents.
US4931818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera view finder
Assignee: Eastman Kodak Co
•
Filing: 1989-06-26
•
Granted: 1990-06-05
•
Expires: 2009-06-26
Abstract
Abstract A view finder comprises three lenses which are mounted for pivotal movement about three separate axis. Cam means are provided for moving the lenses between a viewing position and folded positions. The cam means includes a single plate movable along a rectilinear path to effect position of the lenses.
Inventors
- 👤 Richard A. Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:14
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/02; G03B13/10; G03B13/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
75 words
Apparatus for selectively positioning one of at least three lenses into an optical path, said apparatus comprising: means for independently supporting the lenses for movement between respective first positions where they are out of the optical path and respective second positions where they are in the optical path; and cam means for selectively positioning one of said lenses in its second position and for simultaneously positioning the other of said lenses in their first positions.
Claim 2
Dependent Claim
75 words
Apparatus for selectively positioning one of at least three lenses into an optical path, said apparatus comprising: means for independently supporting the lenses for movement between respective first positions where they are out of the optical path and respective second positions where they are in the optical path; and cam means for selectively positioning one of said lenses in its second position and for simultaneously positioning the other of said lenses in their first positions.
Claim 3
Dependent Claim
45 words
Apparatus as claimed in claim 1 wherein said supporting means supports each of said lenses for pivotal movement between a first position wherein the lens is positioned out of the optical path and a second position wherein the lens is positioned in the optical path.
Claim 4
Dependent Claim
40 words
Apparatus as claimed in claim 2 wherein the pivotal axis of two of said lenses are parallel to each other and the pivotal axis of the other of said lenses is perpendicular to the pivotal axis of said two lenses.
Claim 5
Dependent Claim
118 words
Apparatus for selectively positioning one of a plurality of lenses into an optical path, said apparatus comprising: first, second and third lens frames each mounted for pivotal movement about an axis between a first position wherein the lens frame is positioned out of said optical path and a second position where said lens is positioned in said optical path, the pivotal axis of said first and second frames being parallel to each other and the axis of said third frame being perpendicular to the pivotal axis of said first and second frames; and cam means for simultaneously moving one of said lens frames to its second position while moving the other of said frames to their first positions.
Claim 6
Dependent Claim
118 words
Apparatus for selectively positioning one of a plurality of lenses into an optical path, said apparatus comprising: first, second and third lens frames each mounted for pivotal movement about an axis between a first position wherein the lens frame is positioned out of said optical path and a second position where said lens is positioned in said optical path, the pivotal axis of said first and second frames being parallel to each other and the axis of said third frame being perpendicular to the pivotal axis of said first and second frames; and cam means for simultaneously moving one of said lens frames to its second position while moving the other of said frames to their first positions.
Claim 7
Dependent Claim
47 words
Apparatus as claimed in claim 4 wherein said cam means comprises a cam pin extending from each of said frames; and means for simultaneously moving said pins to position one of said frames to its second position and the other of said frames to their first positions.
Claim 8
Dependent Claim
27 words
Apparatus as claimed in claim 5 wherein said means for simultaneously moving said pins comprises a plate having three cam slots for receiving said cam pins respectively.
Claim 9
Dependent Claim
59 words
Apparatus as claimed in claim 6 wherein said plate is moveable between a central position wherein said third frame is in said optical path and in one direction to a second position wherein said second frame is in said optical path and in a second direction from said central position wherein said first frame is in said optical path.
Claim 10
Dependent Claim
33 words
Apparatus as claimed in claim 7 wherein said first and second frames are parallel to each other and said third frame is positioned between said first and second frames in perpendicular relationship therewith.
References Cited (Backward Citations)
US2187246A
Cited
US2653528A
Cited
US3185061A
Cited
US3212422A
Cited
US3490844A
Cited
US3836934A
Cited
US3936150A
Cited
US4038673A
Cited
US4104663A
Cited
US4195924A
Cited
US4256396A
Cited
US4277158A
Cited
US4204760A
Cited
US4357102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-04 | 1993-12-04 | 1994-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-04 | 1997-12-04 | 1998-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-04 | 2001-12-04 | 2002-06-05 | $7700.00 | Window Closed / Lapsed |