Die cylinder and manifold and system
US6145819A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1998 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | May 19, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/36
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A plurality of die cylinders adapted to contain gas under pressure are mounted on a manifold. Each cylinder comprising a cylinder body having an axially inner cylinder portion and an axially outer cylinder portion. A piston has an axially inner end portion extending into the inner cylinder portion and an axially outer end portion surrounded by the outer cylinder portion. A seal is provided between the inner end portion of the piston and the inner cylinder portion. There is a removable sealing cartridge between the outer end portion of the piston and the outer cylinder portion. A snap ring removably retains the cartridge on a shoulder between the inner and outer cylinder portions. The piston is capable of full axially outward retraction and separation from the cylinder when the cartridge is removed. The cylinder is free of any obstruction which would interfere with the axially outward retraction and separation of the piston when the cartridge is removed. The cylinder body has a pilot portion engaging a complimentary cylindrical opening in the manifold so that the inner end of the cylinder body communicates with high pressure gas within the manifold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.