Pressure generator
US4189936A · kind A · utility
22Cited by
3References
3Claims
0Family size
Inventor
Key dates
| Filing date | Oct 13, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Oct 13, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02108
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A variable volume pressure wave generator including a drive magnet; a low mass, drive coil for energization by an electrical analog of a pressure wave to be simulated and driven by interaction with a magnet; a low mass, high compliance drive coil suspension for supporting the coil relative to the magnet; a piston interconnected and driven with the drive coil; a pressure chamber having an opening for receiving the piston; a flexible, inelastic, diaphragm sealingly engaged with the piston and with the chamber; and passage means extending from the chamber for external connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.