Accumulator
US4799048A · kind A · utility
45Cited by
11References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 10, 1987 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Jun 10, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/515
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An accumulator has a piston axially slidably disposed in a cylinder mounted in a casing, the cylinder and the piston jointly defining a reservoir communicating with an inlet/outlet port in the casing. A piston rod axially movably disposed in the casing has an end slidably fitted in the cylindrical hole of the piston. The piston rod is normally urged by a spring to force the piston into the reservoir. The accumulator also includes a switch mechanism for detecting the position of the piston in the cylinder. The switch mechanism may comprise a reed switch, a light-sensitive switch, a pressure-sensitive switch, or a pushbutton switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.