Apparatus for converting rotary motion to linear motion
Patent 4274294 Issued on June 23, 1981. Estimated Expiration Date: 
July 2, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 2, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2233915 2567483 2894408 3004445 3337732 3654816 Electrically adjustable vehicle accessory Patent #: 4041793 InventorsAssigneeApplicationNo. 06/053922 filed on 07/02/1979US Classes:74/424.95, Independent nut segments74/89.36Deflection relatedExaminersPrimary: Staab, Lawrence J.Attorney, Agent or FirmInternational ClassesF16H 25/24 (20060101)F16H 25/20 (20060101) AbstractApparatus for converting rotary motion of a screw into linear motion includes three circumferentially spaced nut segments each resiliently mounted for displacing in a radial direction normal to the screw axis. A thin flat plate spring member provides a resiliency to the nut segments in a direction normal to the screw axes. The nut segments include a set of parallel triangular screw threads with the roots undercut and the crests removed for averaging out the contact between the nut segments and the screw to an area along the pitch diameter of the screw. | |
