Adjustable stroke cylinder
US4230024A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1978 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Jul 11, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An adjustable stroke piston and cylinder combination including a piston fixed to one end of a piston rod that extends from one end of the cylinder, and an auxiliary piston is in sealed engagement with the cylinder means and the piston rod and is slidable on the piston rod, the piston rod is tubular with pressure supply ports therein connecting its bore to a point intermediate the piston and auxiliary piston while a liquid supply means connects to the one end of the cylinder means to supply pressure liquid intermediate the closed end of the cylinder means and the auxiliary piston to move the same axially on the piston rod to control the effective length of the piston stroke in the cylinder means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.