Patent US1477447A successfully refreshed from Google Patents.
Patent US3702067A successfully refreshed from Google Patents.
US3702067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force transmission and apparatus
Assignee: Stewart Research Inc
•
Filing: 1969-11-04
•
Granted: 1972-11-07
•
Expires: 1989-11-04
Abstract
Abstract The disclosure hereinafter set forth relates to force transmission in any environment. As an essential element in the working force system a substantially noncompressible, nonfluid, but readily deformable gel is employed. In such force transmission, the gel is deformed within a confining but variable zone, and the resulting thrust is translated to force receiving means. The disclosure has wide application and the specific illustration relates to dental and/or surgical type power operated handpieces.
Inventors
- 👤 James M Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:37
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/204; A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/185; F; F16; F16D; F16D27/00; F16H; F16H49/00; Y; Y10; Y10S; Y10S464/00; Y10S464/901; Y10S464/902; Y10S464/903
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
116 words
An apparatus wherein operating parts are intermittently activated and deactivated in the course of operation comprising force delivering means for supplying a translational force, work means responsive to and utilizing said force to accomplish work, and force transmitting means intermediate the force delivering means and the work means permitting intermittent transfer of the force to the work means comprising: a. confining means defining a confining volume between the force delivering means and the work means, and; b. a solid, non-fluid, noncompressible but deformable gel fully occupying said confining volume, whereby intermittent applications of translational force applied to the gel by the force delivering means are transmitted through the gel without substantial loss to the work means.
Claim 2
Independent Claim
116 words
An apparatus wherein operating parts are intermittently activated and deactivated in the course of operation comprising force delivering means for supplying a translational force, work means responsive to and utilizing said force to accomplish work, and force transmitting means intermediate the force delivering means and the work means permitting intermittent transfer of the force to the work means comprising: a. confining means defining a confining volume between the force delivering means and the work means, and; b. a solid, non-fluid, noncompressible but deformable gel fully occupying said confining volume, whereby intermittent applications of translational force applied to the gel by the force delivering means are transmitted through the gel without substantial loss to the work means.
Claim 3
Dependent Claim
46 words
The apparatus of claim 1, wherein the force delivering means penetrates into and reshapes the deformable gel within the confining volume of the transmitting means to increase the mechanical advantage of the transmission of the translational force from the force delivering means to the work means.
References Cited (Backward Citations)
US3521464A
Cited
US3557573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |