Sven M Sonnenberg

US Patent:

54063205, Apr 11, 1995

Filed:

Mar 10, 1992

Appl. No.:

7/848778

Inventors:

Homer D. Durst - Springfield OH
Sven Sonnenberg - Rochester NY

Assignee:

Scitex Digital Printing, Inc. - Dayton OH

International Classification:

B41J 2175

US Classification:

347 86

Abstract:

The present invention constitutes in an ink jet printing apparatus, an improved ink replenishment system. An ink supply housing of the improved ink replenishment system includes a pair of opposed side walls having a plurality of attachments spaced in respective opposing vertical columns and detachable detents coupled to one of the attachments. An attachable ink supply conduit is associated an associated ink supply module includes a container of ink having an ink egress constructed to attach to the conduit, and a housing having bottom and side wall members supporting the container. The side walls have a vertical edge with a plurality of removable sections located in spaced relations corresponding to the column spacing of the attachments and sized to correspond to the detents. Only an ink supply module having proper sections removed can be moved into the housing to an extent sufficient for its egress to connect to the supply conduit.

US Patent:

44707711, Sep 11, 1984

Filed:

Aug 20, 1982

Appl. No.:

6/409781

Inventors:

Richard W. Hall - Springfield OH
Sven Sonnenberg - Springfield OH

Assignee:

Towler Hydraulics, Inc. - Urbana OH

International Classification:

F04B 1700

US Classification:

417342

Abstract:

A quadraplex pumping unit for use as a mud pump, an intensifier, or as a pump for abrasive fluids or the like includes four rams and four ram operating pistons. A control valve arrangement provides for pressure equalization and energy transfer from a cylinder which has just extended in a working stroke to a companion cylinder which has just returned to its retracted to rest position, to conserve energy and reduce the thermal burden on the hydraulic system. The valve arrangement further provides for prepressurization, after pressure equalization, prior to an extending stroke.

US Patent:

39816222, Sep 21, 1976

Filed:

Nov 20, 1974

Appl. No.:

5/525567

Inventors:

Richard W. Hall - Springfield OH
Sven Sonnenberg - Springfield OH

Assignee:

Kelsey-Hayes Company - Springfield OH

International Classification:

F04B 4900
F04B 1700
F04B 3500

US Classification:

417 46

Abstract:

An intensifier unit includes a pair of sequentially operated reciprocating ram assemblies, each powered by a cylinder motor. Extension of the cylinder rods is accomplished by application of pressurized hydraulic fluid to the pistons. The pistons are returned quicker than they are extended by means of continuous application of pressurized air to the back side of the pistons. The cylinder motors are precompressed prior to their respective forward strokes by means of an accumulator which continuously bleeds from the main hydraulic fluid supply line. Circuitry is provided to insure that precompression continues even if the ram and its driving piston move from their retracted position. Also disclosed is a safety interlock to shut down the intensifier if both cylinder rods become accidentally simultaneously extended.

US Patent:

54852560, Jan 16, 1996

Filed:

Jan 12, 1994

Appl. No.:

8/180580

Inventors:

Kent A. Randall - Webster NY
Francisco L. Ziegelmuller - Penfield NY
Dennis R. Kamp - Spencerport NY
Sven Sonnenberg - Webster NY
Donald S. Rimai - Webster NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1501

US Classification:

355271

Abstract:

First and second toner images are created on a primary image member. The first toner image is transferred to an intermediate image member and then transferred back to the primary image member to combine the two images. Preferably, the intermediate image member is a light roller that is inarticulatable and maintained in contact with the primary image member which is preferably an endless belt with sufficient wrap to drive the intermediate image member with low pressure in the contact nip. Cleaning is effected by transferring residual toner back to an empty portion of the primary image member from where it may be cleaned off by a primary image member cleaning station. Intrack registration of the images is maintained by adjusting the time between flashes in creating the two images.

US Patent:

54634490, Oct 31, 1995

Filed:

Dec 15, 1993

Appl. No.:

8/167674

Inventors:

Theodore H. Morse - Rochester NY
Donald S. Rimai - Webster NY
Martin Potucek - Rochester NY
Sven Sonnenberg - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1508

US Classification:

355203

Abstract:

A piezoelectric toner mass sensor to be positioned adjacent to a toner applicator in an electrostatographic recording apparatus. The piezoelectric sensor has a circular central crystal having its front and rear surfaces metallized, the two metallized surfaces being concentric with one another. The front surface of the sensor directed toward the toner applicator is smaller than the rear surface. Reducing the area of metallization on the piezoelectric toner mass sensor greatly increases sensitivity of the device. In addition, limiting the development area on the sensor facilitates the cleaning of the piezoelectric element and facilitates the mounting of the sensor in a suitable holder.

US Patent:

50651943, Nov 12, 1991

Filed:

May 29, 1990

Appl. No.:

7/530145

Inventors:

Sven Sonnenberg - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 2100

US Classification:

355296

Abstract:

Apparatus for removing toner particles from a film photoconductor used in copiers, printers, and other electrostatographic devices. A piezo film is wrapped around a pliable material which is positioned around a rigid tubular member. The ends of the piezo material are clamped to the tubular member by special clamps which allow the piezo film to expand and contract radially when excited by an alternating power source. The film is positioned against the inside of the photoconductor to impart an agitating or vibrating motion which accelerates and loosens toner particles from the other side of the film. A charged roller is spaced from the photoconductor and attracts the agitated toner to the roller for deposit in a collection hopper.

US Patent:

49039563, Feb 27, 1990

Filed:

Oct 31, 1988

Appl. No.:

7/264724

Inventors:

David J. Stephens - Dayton OH
Rodney G. Mader - Dayton OH
Homer D. Durst - Dayton OH
Sven Sonnenberg - Dayton OH

International Classification:

B65H 2940

US Classification:

271178

Abstract:

A sheet stacking apparatus for receiving sheets from a printing or copying machine includes guide structure for directing output sheets onto an elevator platform and a selectively rotatable shaft having paddle arms disposed at a 108. degree. interval. The shaft rotation is controlled so that the arms guide a sheet during stacker input and then rotates 360. degree. to positively clear the sheet trail edge from the stacker input path.

US Patent:

55328024, Jul 2, 1996

Filed:

Jan 13, 1995

Appl. No.:

8/372639

Inventors:

Sven Sonnenberg - Rochester NY
Donald S. Rimai - Webster NY
David D. Almeter - Rochester NY
Martin Potucek - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 2100

US Classification:

355246

Abstract:

A toner mass sensor includes a piezoelectric crystal having a resonant frequency, an electrode on a first face of the crystal, an electrically conductive lead connecting the first face of the crystal to an electrical contact point in the vicinity of a second side of the crystal, and a casing closed at one end by the crystal with the first face of the crystal allowed to contact developer outside of the closed casing through the opening of the casing. The casing and crystal defines an interior which is sealed from developer in a development station, within which sealed interior the second face of the crystal is protected from contamination by developer. The electrode is wrapped around the edge of the crystal to be accessible from the second side of the crystal, and the electrode is a metal; preferably aluminum. The interior of the casing is closed by a base member which carries an electrical circuit. The casing is cylindrical, and an elastomeric, electrical insulator gasket around the crystal seals the interior of the casing to inhibit contamination of the interior of the casing by developer.