US4166675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Click stop device in a camera lens barrel
Assignee: Nikon Corp
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Filing: 1977-09-29
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Granted: 1979-09-04
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Expires: 1997-09-29
Abstract
Abstract In a camera lens barrel having a stationary barrel and a distance ring, a click stop device comprises a ring for setting the restrained position of the distance ring disposed on the stationary barrel with a predetermined clearance with respect to the distance ring, a screw manually operable to fix the set ring to the stationary barrel at any desired position, and a pair of click stop means provided between the distance ring and the set ring so as to engage each other within the clearance.
Inventors
- 👤 Hideo Kanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:46
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
A click stop device in a camera lens barrel having a stationary barrel and a distance ring comprising: an intermediate ring rotatably disposed on said stationary barrel with a predetermined clearance with respect to said distance ring; means manually operable to fix said intermediate ring to said stationary barrel at any desired position; and click stop means comprising two separate elements, one of which is provided on said distance ring and the other on said intermediate ring so as to engage each other within said clearance.
Claim 2
Dependent Claim
86 words
A click stop device in a camera lens barrel having a stationary barrel and a distance ring comprising: an intermediate ring rotatably disposed on said stationary barrel with a predetermined clearance with respect to said distance ring; means manually operable to fix said intermediate ring to said stationary barrel at any desired position; and click stop means comprising two separate elements, one of which is provided on said distance ring and the other on said intermediate ring so as to engage each other within said clearance.
Claim 3
Dependent Claim
47 words
A click stop device according to claim 1, wherein one of said two separate elements of said click stop means is a protruded portion having a groove and the other of said two separate elements is a restraining member engageable with said groove in said protruded portion.
Claim 4
Dependent Claim
45 words
A click stop device according to claim 2, wherein the angle of rotation of said distance ring is less than 360°, and said protruded portion is formed within an angle less than the difference between 360° and the angle of rotation of said distance ring.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-03 | 1983-03-05 | 1983-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-03 | 1987-03-05 | 1987-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-03 | 1991-03-05 | 1991-09-04 | $7700.00 | Window Closed / Lapsed |