David J Geis

US Patent:

D377489, May 8, 1990

Filed:

Oct 7, 1987

Appl. No.:

7/107728

Inventors:

Ramon M. Cardona - Des Plaines IL
David G. Geis - Niles IL
Francis E. Huntoon - Des Plaines IL
Chris G. Johnson - New York NY
Kenneth F. Lewinski - Hoffman Estates IL
Raymond R. Seidlitz - Lincolnshire IL
Eugene K. Sokolowski - Chicago IL

Assignee:

American Telephone & Telegraph Company - Holmdel NJ
AT&T Information Systems

US Classification:

D14115

US Patent:

43110657, Jan 19, 1982

Filed:

Apr 27, 1979

Appl. No.:

6/033762

Inventors:

Jerome L. DeBoo - Barrington IL
David G. Geis - Chicago IL

Assignee:

Teletype Corporation - Skokie IL

International Classification:

G05G 100
F16H 2904
F16H 3508

US Classification:

74571M

Abstract:

The drive mechanism for a paper tape punch and reader assembly utilizes tape drive assemblies which move the paper tape in response to the application of continuous periodic motion and control signals. The periodic motion serves to oscillate a rocker plate between first and second limits and the control signls serve to selectively engage and disengage a detent which effects coupling between the drive shaft and the source of periodic motion. The periodic motion is imparted to the drive assembly by a connecting link which in turn is driven by an adjustable eccentric. The eccentric comprises a pulley plate which is fixed to a shaft. A circular body is adjustably movable with respect to the pulley plate and is arranged to engage the race of a ball bearing assembly which further comprises balls and a retaining ring. The connecting link has a circular opening which provides a snug fit to the exterior of the retaining ring. The pulley plate and the body are held in a fixed physical relation by two locking screws and the relative position of the two is established by an eccentric which is mounted on one of the locking screws.

US Patent:

39826228, Sep 28, 1976

Filed:

Oct 4, 1974

Appl. No.:

5/512264

Inventors:

Joseph A. Bellino - Arlington Heights IL
David G. Geis - Chicago IL
Ingard B. Hodne - Northbrook IL
Arthur F. Lindberg - Chicago IL

Assignee:

Teletype Corporation - Skokie IL

International Classification:

B41J 304

US Classification:

197 1R

Abstract:

A wire matrix printer includes a print head having one or more banks of a plurality of generally horizontal, vertically spaced print wires arranged parallel to each other for linear reciprocation toward and away from a recording surface by associated actuators. The print wires in each bank are of progressively varying length so that the wire associated with the actuator furthest from the recording surface is the longest and each adjacent wire is a predetermined amount shorter than the preceding wire. Outer or actuator ends of the wires define a vertically spaced and stepped array. The actuators in each bank are also in an array vertically spaced and stepped and are respectively coupled to the outer print wire ends by armatures. The inner or printing ends of the wires define a vertically spaced, nearly planar array near the recording surface, and a spaced, planar array at such surface. If there is more than one bank of print wires, the banks are angularly spaced from a line extending perpendicularly from the recording surface, and the inner ends of the wires in each bank are alternately interleaved near the recording surface.

US Patent:

41416619, Feb 27, 1979

Filed:

Jul 18, 1977

Appl. No.:

5/816824

Inventors:

David G. Geis - Chicago IL
Ingard B. Hodne - Northbrook IL

Assignee:

Teletype Corporation - Skokie IL

International Classification:

B41J 312

US Classification:

400124

Abstract:

A guide system for arranging a plurality of print wires from a converging arrangement into a parallel arrangement aligned with a column of dot locations to be printed on a record medium, the guide system including a first guide more remote from the record for bearing against the wires as they are bent into a direction perpendicular to the record medium. And a second guide nearer the record medium than is the first guide, for applying the bending force to the wires to bring them into alignment perpendicular to the record medium. A final guide still nearer to the record medium finally assures that the wires are in a straight, columnar line as they face the record medium. The first and second guides are freely movable in a plane substantially perpendicular to the final direction of movement of the wires, thereby accommodating some transient movement of the wire ends and to accommodate unbalanced bending forces of the wires due to an unequal number of wires approaching the guide from each side of the axis of movement of the wire ends.

US Patent:

41141261, Sep 12, 1978

Filed:

Jul 18, 1977

Appl. No.:

5/816823

Inventors:

David G. Geis - Chicago IL
Ingard B. Hodne - Northbrook IL

Assignee:

Teletype Corporation - Skokie IL

International Classification:

H01F 708

US Classification:

335270

Abstract:

An armature locating and holding structure in which the armature only partially overlaps one of the magnetic poles so as to produce a magnetic tensile force on the armature tending to pull the armature toward the partially overlapped pole and a magnetic gap tending to apply a rotational balance force so as to pull the armature structure toward a pair of stops that limit movement of the armature toward the partially overlapped pole and also limits the rotation of the armature by reason of the magnetic gap.

US Patent:

39744892, Aug 10, 1976

Filed:

Aug 30, 1972

Appl. No.:

5/284743

Inventors:

George H. Bleeker - Chicago IL
David G. Geis - Chicago IL

International Classification:

G08B 1300

US Classification:

340261

Abstract:

A centralized system for simultaneously monitoring a plurality of predetermined remote areas and selectively indicating an unauthorized intrusion into any of the areas. A preamplifier is placed in each of the areas for amplifying the electrical signals from each of a set of microphones in that area and the amplified signal is coupled to a central monitoring and alarm station. The central station may provide a sound level indicating lamp for each area, an alarm lamp to indicate when the sound in each area exceeds a predetermined background or threshold level, and a system for simultaneously listening to the actual sound in all of the remote areas or selectively listening to the sound in any one of the areas.

US Patent:

62234315, May 1, 2001

Filed:

May 28, 1998

Appl. No.:

9/086235

Inventors:

Peter Doikas - Arlington Heights IL
David Geis - Niles IL
Jeffrey D. Merwin - Buffalo Grove IL

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

H01R 900

US Classification:

29843

Abstract:

A method (100) for providing an electrical ground connection between a printed circuit board (700) and a metallic substrate (200) comprises the steps of: (i) providing an aperture (204) in the substrate (200); (ii) forming a ground plug (302) out of a metallic blank (300); (iii) inserting the ground plug (300) into the aperture in the substrate (200); (iv) compressing the ground plug (302) into the aperture (204) in the substrate (200); (v) placing the printed circuit board (700) onto the substrate (200); and (vi) applying solder into the aperture in the printed circuit board (700) and onto the ground plug (302). The steps of forming (104), inserting (106), and compressing (108) are carried out in a single punching operation (120). The method (100) efficiently provides a high quality electrical ground connection and avoids any need for sophisticated machinery.

US Patent:

47877596, Nov 29, 1988

Filed:

May 29, 1987

Appl. No.:

7/056505

Inventors:

David G. Geis - Niles IL
Kurt Rothlisberger - Morton Grove IL

Assignee:

American Telephone and Telegraph Company - AT&T Information Systems - Holmdel NJ

International Classification:

B41J 1120

US Classification:

400 55

Abstract:

A printing gap adjustment mechanism compensates for the change in the pring gap variation caused by the relative motion between two side walls of the printer frame supporting a platen and two guide rods slidably supporting a print head. The mechanism includes a compensator rod and a pair of eccentric members rotatably mounted in a compensator plate which is pivotally mounted on one side wall of the printer frame. One end of the compensator rod is frictionally secured to the opposite side wall while the other end is rotatably supported in an opening in the other side wall and is secured to an eccentric mounted to the compensator plate. One of the guide rods supporting the print head is located near the platen and is secured between two eccentric members, one of which is rotatably mounted in the compensator plate and the other is rotatably mounted in the opposite side wall. The other guide rod is secured between the two side walls. When the printing gap becomes distorted due to relative motion between the two side walls, the mechanism senses the distortion and moves the compensator plate which in turn moves the eccentric member to which one end of the guide rod is secured a predetermined distance to restore the desired printing gap.