Patent · US Active

Extendible and retractable actuator

US7458562B1 · kind B1 · utility

10Cited by
6References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 28, 2007
Grant dateDec 2, 2008
Priority date
Expiry dateJul 23, 2027

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66F3/10
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

An extendible and retractable actuator comprises a motor, two screws and an extendible and retractable sleeve assembly. The motor cooperates with the screws to drive the extendible and retractable sleeve assembly to extend and retract simultaneously, so as to reduce the extending and retracting time and to simplify the structure of the extendible and retractable actuator.

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