US4641123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joystick control
Assignee: RCA Corp
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Filing: 1984-10-30
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Granted: 1987-02-03
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Expires: 2004-10-30
Abstract
Abstract A joystick having a base and a handle. A plurality of potentiometers extending between the base and the handle so that as the handle is moved in any of six degrees of freedom, the resistance of the various potentiometers will change in a pattern which represents the movement.
Inventors
- 👤 James M. M. Whitehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:57
CPC Classifications
G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; G05G9/047; G05G9/04785; G05G9/04788; G05G2009/04703; G05G2009/0474; G05G2009/04751; G05G9/04737; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
71 words
A joystick comprising: a base; a handle; and a plurality of potentiometers coupled between the base and the handle and directly connected thereto so as to provide at least three degrees of freedom of movement by said handle with respect to the base, the potentiometers connected to the base and handle so that said movement varies the electrical resistance of the potentiometers in relation to the direction and amount of movement.
Claim 2
Dependent Claim
71 words
A joystick comprising: a base; a handle; and a plurality of potentiometers coupled between the base and the handle and directly connected thereto so as to provide at least three degrees of freedom of movement by said handle with respect to the base, the potentiometers connected to the base and handle so that said movement varies the electrical resistance of the potentiometers in relation to the direction and amount of movement.
Claim 3
Dependent Claim
31 words
The joystick as in claim 1 wherein each potentiometer comprises: a tubular cylinder having a resistive surface in the interior of the cylinder; and a piston slideably mounted within the cylinder.
Claim 4
Dependent Claim
39 words
The joystick as in claim 2 wherein there are six potentiometers, two potentiometers being connected to the base at each of three points and different pairs of the potentiometers being connected at each of three points on the handle.
Claim 5
Dependent Claim
23 words
The joystick as in claim 3 wherein each set of three points on the base and handle are equidistantly spaced about a circle.
Claim 6
Dependent Claim
66 words
A joystick comprising: a base; a handle; and six potentiometers connected in pairs to three points on said handle and connected in different pairs to three points on said base so as to provide six degrees of freedom of movement by said handle with respect to said base so that the electrical resistance of said potentiometers varies corresponding to the direction and magnitude of said movement.
Claim 7
Dependent Claim
66 words
A joystick comprising: a base; a handle; and six potentiometers connected in pairs to three points on said handle and connected in different pairs to three points on said base so as to provide six degrees of freedom of movement by said handle with respect to said base so that the electrical resistance of said potentiometers varies corresponding to the direction and magnitude of said movement.
References Cited (Backward Citations)
US3364454A
Cited
US3931606A
Cited
US4306208A
Cited
US4281561A
Cited
US4375631A
Cited
US4555960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |