Patent · US Active

Tilt-safe, high-capacity, bottle jack system and method

US10214399B2 · kind B2 · utility

0Cited by
23References
19Claims
0Family size

Inventor

Key dates

Filing dateSep 8, 2016
Grant dateFeb 26, 2019
Priority date—
Expiry dateSep 8, 2036

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66F3/42
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A bottle jack may be manufactured differently or converted (retro-fitted) by replacing a conventional shaft in a main lift piston to be inserted and removed, at will, without tools. The threads in the main lift piston may remain or be removed. A yoke or other head is fitted to provide registration, horizontal restraint, or both against a lifted object, component, or surface to prevent sliding off the head in use. In a smooth-walled-shaft embodiment, a set of risers (spacers, adjusters, trims, or shims) provide an extension height of the shaft, elevating the head with respect to the piston prior to beginning to lift the hydraulic piston.

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