US4569244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control lever with automatic return to original position
Assignee: Individual
•
Filing: 1982-07-08
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Granted: 1986-02-11
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Expires: 2002-07-08
Abstract
Abstract A device which, when manually operated, will automatically return to an original position wherein a manually-operated control lever rotates at least one shaft having an arm mounted on the end of the shaft, and with a roll at the other end of the arm which abuts against one of two profiled parts when the shaft is rotated by the control lever. The two profiled parts resiliently abut a stop or stops when the arm is in an original or zero position but one profiled part abuts a stop while the other profiled part resiliently abuts the roll on the end of the arm when the shaft is rotated, and the profiled parts have steps thereon which are position markings able to be sensed manually by the control lever by a snap effect.
Inventors
- 👤 Ake Akerstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:46
CPC Classifications
G; G05; G05G; G05G5/00; G05G5/05; G05G1/00; G05G1/04; G05G9/00; G05G9/02; G05G9/04; G05G9/047; G05G9/04785; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
138 words
A device preferably for use as a radio control unit comprising a manually operated control lever (1); at least one shaft (2, 3) connected for rotation by said control lever; an arm (4) having one end fastened on said shaft; two profiled parts with the other end of said arm, when said arm is rotated by said shaft, abutted against one of said two profiled parts; stop means against which said profiled parts resiliently abut when said profiled parts are in an original or zero position without abutment by said rotated arm, or which are abutted by one of said parts when said shaft is rotated and the other said part is abutting said arm; said profiled parts having marking for predetermined positions; said marking able to be sensed manually by said control lever by a snap effect.
Claim 2
Independent Claim
138 words
A device preferably for use as a radio control unit comprising a manually operated control lever (1); at least one shaft (2, 3) connected for rotation by said control lever; an arm (4) having one end fastened on said shaft; two profiled parts with the other end of said arm, when said arm is rotated by said shaft, abutted against one of said two profiled parts; stop means against which said profiled parts resiliently abut when said profiled parts are in an original or zero position without abutment by said rotated arm, or which are abutted by one of said parts when said shaft is rotated and the other said part is abutting said arm; said profiled parts having marking for predetermined positions; said marking able to be sensed manually by said control lever by a snap effect.
Claim 3
Dependent Claim
39 words
Device according to claim 1, characterized in that said marking (13, 14) on each profiled part (7, 8, 18, 19) is so formed, that when said control lever is unactivated, said arm (4) returns automatically to said original position.
Claim 4
Dependent Claim
51 words
Device according to any of claim 1, characterized in that said profiled parts (7, 8, 18, 19) consist of elongated members, one end of which being rotatably journalled and the other end of which being loaded towards each other by means of a helical spring (9) arranged between said other ends.
Claim 5
Dependent Claim
51 words
Device according to any of claim 1, characterized in that at least one torsion spring (11, 12, 21) is mounted on the profiled parts (7, 8, 18, 19) and is so loaded, that it presses the profiled part (7, 8, 18, 19) in question against said stop means (15, 22, 23).
Claim 6
Dependent Claim
31 words
Device according to any of claim 1, characterized in that a roll (5) is journalled on the arm (4) which roll will abut against the profiled parts (7, 8, 18, 19).
Claim 7
Dependent Claim
27 words
Device according to any of claim 1, characterized in that said profiled parts (7, 8, 18, 19) are symmetrically arranged around said stop means (15, 22, 23).
Claim 8
Dependent Claim
55 words
Device according to claim 1, characterized in that each of said profiled parts (7, 8) are, at one end thereof, pivotally connected at points on each side of said shaft (2, 3); and in that the other end of each of said profile parts will abut, in the unactivated state, against a common stop (15).
Claim 9
Dependent Claim
58 words
Device according to any of claim 1, characterized in that said profiled parts (18, 19) are, at one end thereof, journalled in the same point at the end of said arm (4) abutting said parts, and in that each one of said other ends of said profiled parts abuts, in the unactivated state, against a stop (22, 23).
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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) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |