Air compressor
US3961869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Sep 26, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B39/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides an air compressor of low cost, high quality, long life and of simple and rugged construction and ready replaceability of the chief wear parts as a unit. The compressor employs a wobble piston with a Teflon or equivalent packing on the wobble piston, which packing bears against the surface of a working cylinder of aluminum with a hardened polished surface. The working cylinder in the form of a cylindrical sleeve is seated at its lower end on a circular shoulder in the main housing or frame. At its upper end it is seated and sealed in a groove in a head plate which provides a cylinder head for the cylinder and a closure for the top of the main frame. An inverted cup shaped delivery chamber rests upon and is secured to and sealed by an O-ring of heat resistant rubber to the head plate to receive the delivery of compressed gas and to provide anchorage for a delivery pipe or pipes. The discharge check valve of flanged duck bill formation is held in place by pressure fit of a metal ring in an annular recess, which ring engages and retains the flange of the discharge valve. The Teflon cup leather is clamped to the end of the combined piston and connecting rod by pre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.