US3686960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stepping device for rotating the table of a sample changing equipment
Assignee: CECIL INSTRUMENTS Ltd
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Filing: 1970-05-11
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Granted: 1972-08-29
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Expires: 1990-05-11
Abstract
Abstract A stepping device for a sample changer turntable is driven by spring means, which may be tensioned by rotation of the turntable, and suitably coupled fluid damper means controls the stepped rotation of the turntable. A stepping escapement for the device may comprise a disk carrying pins which project on both sides thereof and a lever carrying co-operating posts.
Inventors
- 👤 Cecil Sidney Charles Tarbet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:26
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/02; G01N35/04; G01N2035/0439; G01N2035/0441; G01N2035/0474; G01N2035/0482; G01N2035/0486; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1502
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
53 words
A stepping device for rotating the table of a sample changing equipment comprising: a. a drive shaft; b. a drive spring means coupled to said drive shaft; c. a stepping escapement geared to said drive shaft; and d. a fluid damper coupled to said drive shaft to restrain the rotation of the latter.
Claim 2
Dependent Claim
53 words
A stepping device for rotating the table of a sample changing equipment comprising: a. a drive shaft; b. a drive spring means coupled to said drive shaft; c. a stepping escapement geared to said drive shaft; and d. a fluid damper coupled to said drive shaft to restrain the rotation of the latter.
Claim 3
Dependent Claim
16 words
A device according to claim 1 in which said drive spring means comprises a constant-tension spring.
Claim 4
Dependent Claim
23 words
A stepping device as claimed in claim 1 in which said fluid damper is coupled to said drive shaft by a unidirectional coupling.
Claim 5
Dependent Claim
71 words
An escapement mechanism for a stepping device, said mechanism comprising: a. a pivotally mounted disc carrying a number of pins spaced around a circle concentric with the disc pivot and each projecting on both sides of the disc; and b. a co-operating lever carrying a pair of posts extending into the path of said pins on either side of said disc, said posts being staggered along the path of said pins.
Claim 6
Dependent Claim
71 words
An escapement mechanism for a stepping device, said mechanism comprising: a. a pivotally mounted disc carrying a number of pins spaced around a circle concentric with the disc pivot and each projecting on both sides of the disc; and b. a co-operating lever carrying a pair of posts extending into the path of said pins on either side of said disc, said posts being staggered along the path of said pins.
Claim 7
Dependent Claim
20 words
A mechanism according to claim 4 in which said lever includes an extended portion for cooperation with an actuating linkage.
Claim 8
Dependent Claim
32 words
A device according to claim 1, further comprising equipment including a static portion, a sub-turntable rotatable by said shaft, and co-operating rotation-limiting stop means on said sub-turntable and said staTic portion, respectively.
Claim 9
Dependent Claim
18 words
A device according to claim 6 in which one member of the co-operating stop means is moveably mounted.
Claim 10
Dependent Claim
39 words
A device according to claim 7 wherein said sub-turntable carries a downwardly depending flange and said stop means comprises a fixed pin on said downwardly depending flange and a pivot arm mounted with limit stops on said static portion.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |