US3760320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for simultaneously controlling a plurality of variable resistors
Assignee: Panasonic Holdings Corp
•
Filing: 1972-03-21
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Granted: 1973-09-18
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Expires: 1992-03-21
Abstract
Abstract A bearing having a spherical bearing surface and made of a synthetic resin by molding or the like is attached to an opening formed at the center of the top wall of a casing having four side walls. The bearing rotatably receives a spherical body having a control shaft which extends through the center of the spherical body and is securely fixed thereto. Variable resistors are attached to the side walls of the casing in such a manner that their rotary shafts may extend into the casing. Each of the opposed pairs of the variable resistors are interconnected with a bow-shaped elastic connecting member having an axially elongated slot. The lower end of the control shaft is fitted into the axially elongated slots of the connecting members which cross each other, but do not interfere with each other. As the control shaft is rotated or inclined in any direction, two or four variable resistors may be simultaneously controlled.
Inventors
- 👤 S Oka
- 👤 M Nishioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:38
CPC Classifications
G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; G05G9/047; F; F16; F16B; F16B17/00; F16B17/006; G05G9/04785; G05G2009/04703; G05G2009/04707; G05G2009/0474; G05G2009/04748; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7098; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
198 words
In a device for the simultaneous control of a plurality of variable resistors of the type having a casing, first and second pairs of variable resistors mounted on the casing with their rotary shafts directed into the casing, the resistors of each pair of resistors having axially aligned shafts, a separate slotted bow-shaped connecting member extending between the shafts of each pair of resistors whereby the bow-shaped members together form a crossed bridge, and a control member for the device including a control shaft mounted in a spherical bearing and extending into the slots of the connecting members at their intersection; the improvement wherein the end of each of said rotary shafts extending into the casing is cut out, each end of each connecting member having a hole therein shaped to fit over the end portion of a rotary shaft and an ear extending from a side of the hole therein, said connecting members being mounted on said ends of the aligned rotary shafts with the rotary shafts extending into the hole at the respective end of the respective connecting member and the ear of the connecting member pressed against the cut out portion of the respective shaft.
Claim 2
Dependent Claim
198 words
In a device for the simultaneous control of a plurality of variable resistors of the type having a casing, first and second pairs of variable resistors mounted on the casing with their rotary shafts directed into the casing, the resistors of each pair of resistors having axially aligned shafts, a separate slotted bow-shaped connecting member extending between the shafts of each pair of resistors whereby the bow-shaped members together form a crossed bridge, and a control member for the device including a control shaft mounted in a spherical bearing and extending into the slots of the connecting members at their intersection; the improvement wherein the end of each of said rotary shafts extending into the casing is cut out, each end of each connecting member having a hole therein shaped to fit over the end portion of a rotary shaft and an ear extending from a side of the hole therein, said connecting members being mounted on said ends of the aligned rotary shafts with the rotary shafts extending into the hole at the respective end of the respective connecting member and the ear of the connecting member pressed against the cut out portion of the respective shaft.
Claim 3
Dependent Claim
23 words
The device of claim 1 wherein said holes are substantially D-shaped with said ears extending from the straight edges of the respective holes.
Claim 4
Dependent Claim
27 words
The device of claim 2 wherein said ears extend from the edges of the respective holes in a direction toward the ends of the respective rotary shafts.
Claim 5
Dependent Claim
25 words
The device of claim 1 comprising an insulating member on said control shaft and positioned to electrically insUlate said control shaft from said connecting members.
Claim 6
Dependent Claim
18 words
The device of claim 4 wherein said insulating member is an insulating sleeve positioned on said control shaft.
Claim 7
Dependent Claim
37 words
The device of claim 1, comprising an insulating coating on each connecting member adjacent the sides of the respective slot, said insulating coating being positioned to provide electrical insulation between the connecting members and said control shaft.
References Cited (Backward Citations)
US2201686A
Cited
US2762234A
Cited
US2984720A
Cited
US3308675A
Cited
US3365975A
Cited
US3372359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |