Patent · US Active

Manual hoist with automatic speed change device

US10549964B2 · kind B2 · utility

0Cited by
16References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 18, 2018
Grant dateFeb 4, 2020
Priority date—
Expiry dateAug 4, 2038

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66D3/16
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A system for automatically switching between a high speed and a low speed state for rotating the drive shaft of a manual hoist.

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