Patent · US Expired

Scissor lift control apparatus and method

US6330933A · kind A · utility

16Cited by
30References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 29, 1999
Grant dateDec 18, 2001
Priority date
Expiry dateNov 29, 2019

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66F11/042
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A controller, for a scissor lift control system includes a multiplexing device for lessening the number of conductor lines sent to the controller. The controller includes a microprocessor, and it determines appropriate safe operations of the scissor lift based on various sensed inputs, such as height of the platform and load on the platform. The scissor lift is operated by pushing either a drive select push button, a lift select push button, or a deck select push button. After the switch is selected, the operator has a predetermined amount of time to stroke the joystick in order to effect movement of the scissor lift.

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