Reciprocating linear motor
US4002935A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | May 15, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear motor is operatively connected to operate a pair of axially aligned compressors. A pair of axially spaced and oppositely wound coils are mounted to a cylindrically shaped coil form movably connected to drive the aligned compressors with the coils serially connected to a single phase A.C. power source. A pair of spaced annular magnets provide a pair of annular poles of opposite polarity spaced immediately adjacent to the pair of coils while an outer annular flux conducting member connects the outer radial portions of the annular magnets. One embodiment spaces the pair of compressors at opposite axial extremities of the linear motor construction while a second embodiment centers the compressors within the movable coil form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.