Stroke enlarging mechanism
US4495828A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1982 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Mar 26, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18992
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A stroke enlarging mechanism comprises a stationary rack, a saddle member driven by an actuator relative to the stationary rack, an operating arm movable relative to the saddle member, and a movable rack secured to the operating arm. A first pinion and a second pinion are rotatably mounted in the saddle member to be engageable with the stationary rack and the movable rack, respectively. A coupling device couples the two pinions with each other. Upon driving the saddle member relative to the stationary rack, the two pinions are rotated thus displacing the operating arm for a distance larger than the driving stroke of the saddle member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.