1
H Erwin Grellmann, John B Gilbert, Robert C Tidrick, Perry E Wingfield: Solid ink stick supply system. Tektronix, Charles F Moore, November 2, 1999: US05975690 (44 worldwide citation)

A solid ink stick supply system and related method for delivering solid ink sticks to an ink jet print head reservoir is disclosed. The supply system includes a housing with a keyed plate that guides the ink sticks into the proper loading position in a supply channel. A pusher rod in the supply chan ...


2
H Erwin Grellmann, Leonard A Roland: Impedance match connection using multiple layers of bond wires. Tektronix, William O Geny, Francis I Gray, August 11, 1987: US04686492 (27 worldwide citation)

A bond wire connection between two semiconductor devices alleviates the problem of inductive loading at high frequencies by providing a capacitive effect which compensates for inductive reactance. The capacitive effect is provided by utilizing multiple parallel layers of bond wires at a common elect ...


3
H Erwin Grellmann, John B Gilbert, Robert C Tidrick, Randy C Karambelas, William B Weaver, James B Jensen, Dale R Peterson: Solid ink stick supply apparatus and method. Tektronix, Charles F Moore, June 29, 1999: US05917528 (20 worldwide citation)

A solid ink stick supply system and related method for delivering solid ink sticks to an ink jet print head reservoir is disclosed. The supply system includes a housing with a keyed plate that guides the ink sticks into the proper loading position in a supply channel. A pusher rod in the supply chan ...


4
Craig Smith, H Erwin Grellmann, Leonard Guan, David D Martenson: Fusing apparatus for a printer. Tektronix, Ralph D Alessandro, June 2, 1998: US05761597 (15 worldwide citation)

An improved fusing apparatus for fixing or fusing images on print media is disclosed wherein a relatively small pressure applying surface, such as the surface of a rotatable pressure wheel, is lubricated with a lubricating medium such as silicone oil, and engages the printed image to apply pressure ...


5
H Erwin Grellmann, Gerald K Hein, Brian A Ohlemeier, Randy C Karambelas: Replaceable RF connector. Tektronix, Francis I Gray, January 26, 1988: US04721481 (13 worldwide citation)

A replaceable RF connector with replaceable fuse has a receptacle mounted on a housing, the receptacle having a cavity and a throughole to the interior of the housing. An RF connector has a connector end for connecting cables and/or adaptors, a receptacle end having a fuse cavity in electrical conne ...


6
Leonard A Roland, Larry R Lockwood, H Erwin Grellmann: Broad band, thin film attenuator and method for construction thereof. Tektronix, Francis I Gray, William A Birdwell, June 2, 1987: US04670723 (5 worldwide citation)

A broad band, thin film attenuator for microwave circuits is constructed by placing a ground plane conductor on one side of a ceramic, insulating substrate, and conductive, resistive, and reactive elements on the other side of the substrate. Capacitive stubs are provided to compensate for inductance ...


7
H Erwin Grellmann, Keith E Jones, Carl W Laakso, John A Wright: Microwave interconnect. Tektronix, John P Dellett, Francis I Gray, April 14, 1987: US04657322 (5 worldwide citation)

A microwave interconnect for integrated or hybrid circuits includes a flexible sheet bearing a flexible conductor which is divided into a plurality of insulated conductive lines, at least some of which make contact with the integrated or hybrid circuit, as well as with a second circuit to which the ...


8
H Erwin Grellmann, Emmanuel Sang: Damped cradle for saw device. Tektronix, Francis I Gray, April 28, 1992: US05109177 (3 worldwide citation)

A damped cradle for a pressure sensitive device is constructed in a unitary form. The cradle has a base that is attached to a substrate. Extending upward from the base are side arms with pairs of spring, or compliant, tips that contact the sides of the pressure sensitive device. Also extending upwar ...


9
H Erwin Grellmann, Keith E Jones, John A Wright: Capacitive tuning screw. Tektronix, John P Dellett, Francis I Gray, July 1, 1986: US04598334 (3 worldwide citation)

A capacitive tuning screw comprises a threaded portion with a longitudinal cavity for slidably receiving a plunger shaft. If the capacitive element on the tip of the plunger shaft contacts the corresponding capacitive element on the surface of an electrical circuit board or substrate, further turnin ...


10
David D Martenson, Robert C Tidrick, H Erwin Grellmann: Method for automatic print head spacing in an ink jet printer. Tektronix, Charles F Moore, October 13, 1998: US05821952 (1 worldwide citation)

A method for setting a predetermined head-to-print medium distance without utilizing a media clamp is provided. A print medium support surface has a contact length that is less than the length of the print medium. The distance between the print head and the support surface is set to a minimum. Stati ...