Patent · US Expired

Screw actuator with a fixed nut

US7007775B2 · kind B2 · utility

3Cited by
9References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 12, 2002
Grant dateMar 7, 2006
Priority date
Expiry dateDec 12, 2022

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2125/587
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A screw actuator comprises a housing (1), a screw mechanism (4) with a nut (6) and a screw (5), as well as a motor (7) which is drivingly connected to the screw. The screw (6) is rotatably and translatably supported with respect to the nut (5), which is fixed with respect to the housing (1). The screw engages a translatable, non rotatable actuating head (29) through a swivel connection. The swivel connection comprises a pair of conformed surfaces (41, 42) having a common rotational axis of symmetry which is aligned with the axis of the screw mechanism.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.