US3742167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pedal switch for dental drives
Assignee: Siemens AG
•
Filing: 1971-04-28
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Granted: 1973-06-26
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Expires: 1991-04-28
Abstract
Abstract A pedal switch for electrical drives, particularly dental bore drives has adjusting members operated by foot for releasing several switching and actuating procedures. The invention is particularly characterized by the provision of a lying shaft constituting a common actuating member for setting the speed of rotation and possibly other switching operations, the radial movement of the shaft being transmitted to the switching and/or actuating members.
Inventors
- 👤 M Muther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:55
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/30; G05G1/42; A; A61; A61C; A61C1/00; A61C1/0007; A61C1/0015; A61C1/0023; H; H01; H01H; H01H19/00; H01H19/02; H01H19/10; H01H19/14; H01H19/16; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20528
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
A foot operated control device, comprising a casing, a rotatable roller extending out of said casing adjacent the base of said casing, said roller being adapted to be directly actuated by a foot engaging its outer surface, a control member located in said casing, and gear means connecting said roller with said control member and transferring the rotary movement of said roller to said control member for changing the control position of said control member.
Claim 2
Dependent Claim
75 words
A foot operated control device, comprising a casing, a rotatable roller extending out of said casing adjacent the base of said casing, said roller being adapted to be directly actuated by a foot engaging its outer surface, a control member located in said casing, and gear means connecting said roller with said control member and transferring the rotary movement of said roller to said control member for changing the control position of said control member.
Claim 3
Dependent Claim
69 words
A device in accordance with claim 1, for use with a dental borer drive, wherein said control member comprises a rotary potentiometer varying the number of revolutions of the borer drive, and wherein said gear means comprise a cord drive connecting said roller with said control member in such manner that the rotation of said roller in both directions is transmitted in the same directions to said control member.
Claim 4
Dependent Claim
20 words
A device in accordance with claim 1, having a ground plate, said roller being partly sunk in said ground plate.
Claim 5
Dependent Claim
26 words
A device in accordance with claim 1, wherein said roller is conical, the diminishing part of the shaft extending toward the operating side of the device.
Claim 6
Dependent Claim
25 words
A device in accordance with claim 1, comprising resilient members engaging said roller, said shaft being rotatable about the axis from a defined middle position.
Claim 7
Dependent Claim
21 words
A device in accordance with claim 1, comprising resilient members engaging said roller, said shaft being movable in the axial direction.
Claim 8
Dependent Claim
20 words
A device in accordance with claim 1, wherein said support is a grip-facilitating cover at least partly covering said roller.
Claim 9
Dependent Claim
15 words
A device in accordance with claim 7, wherein said cover consists of spaced rubber rings.
References Cited (Backward Citations)
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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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |