Empty/load valve
US5211450A · kind A · utility
12Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Sep 12, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/1893
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An empty-load device, having in a single housing, a sensing piston and a ratio piston interconnected by a push rod which senses load. A ratio valve, including a valving element and valve seat, is mounted on and travels with the ratio piston and is opened by the push rod. The ratio valve is connected to the ratio piston by a spring such that the push rod engages the ratio valve to open the ratio valve and position the ratio piston via the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.