Bernard Rubinshtein

US Patent:

48405019, Jun 20, 1989

Filed:

Mar 14, 1988

Appl. No.:

7/171160

Inventors:

Kam C. Wong - Canoga Park CA
Bernard Rubinshtein - Agoura CA
Aram Arzoumanian - Woodland Hills CA

Assignee:

Dataproducts Corporation - Woodland Hills CA

International Classification:

B41J 312

US Classification:

400124

Abstract:

A magnetic actuator particularly suitable to be arranged in a circular array to form a wire matrix printhead for mosaic, or dot, matrix printing. Each such magnetic actuator of three poles being (1) and "E"-shaped core defining three magnetic poles which is substantially thin in the thickness of the "E", which is that direction circumferentially along a circular array of such magnetic actuators, (2) a single coil wound around the center magnetic pole of such "E"-shaped core, and (3) an armature striding over all three magnetic poles. The armature is maintained at its pivot point by an O-ring which creates no moment of force to the striding of the armature. The "E"-shaped core may be comprised of laminated, or of solid, magnetic material and may further be structurally in common with the cores of other ones of the magnetic actuators as are arranged in the circular array.

US Patent:

43195512, Mar 16, 1982

Filed:

Mar 7, 1980

Appl. No.:

6/128091

Inventors:

Bernard Rubinshtein - Thousand Oaks CA

International Classification:

F02B 5300

US Classification:

123245

Abstract:

A rotary internal combustion engine has as its principal components (in one embodiment): a drive shaft; two annular carrying walls, each supporting at least two arcuate pistons, the carrying walls being mounted upon the drive shaft through inner one way clutches such that the pistons of the two carrying walls are interdigitated; an annular housing connected to the outer edges of each of the carrying walls through outer one way clutches; and two endplates supporting the carrying walls. The pistons divide an operating chamber defined by the drive shaft, the two carrying walls, and the annular housing into four isolated volumes which function as the work chambers of the engine. The intake, ignition and exhaust needs of each work chamber are supplied through ports in the carrying walls which communicate with grooves and commutator strips in the endplates. The clutches are aligned so that when any two adjacent pistons are forced apart (as by combustion in the work chamber formed by the two pistons), the carrying wall supporting one of the pistons locks against the housing and releases the drive shaft, while the carrying wall supporting the other piston locks against the drive shaft and releases from the housing. Thus, combustion in successive work chambers is transformed into rotational motion of the drive shaft.