Apparatus for accurately positioning an object at each of two locations
US4604910A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Feb 22, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2144
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An object mounting member is slideably interconnected with a guide member which provides a path between two separated fixed locations. The guide member is attached to a support member having fixed stops located between the two fixed locations. A pinion gear is fixedly attached to the shaft of a stepper motor, and a spur gear is held in an engaging relationship with said pinion gear. An eccentric arm is pivotally attached at one end to the spur gear and is driven to provide rapid motion between the two fixed locations with a rate of motion approaching zero hit nears each fixed location. The other end of the eccentric arm is pivotally attached to one end of a drive arm that is pivotally attached to the object mounting member. The drive arm includes a spring loaded member that is used to allow the object mounting member to be preloaded against a stop at each end of its travel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.