Motorola Corporation

Robert A Johnson

Edward L Saxton

Andrew W Hardell

Eduardo M Molieri

David B Fiedler

Kimberly A Kirkham

Kenneth M Zoric

Agustin O Morin

A mounting apparatus and method is suitable for printed wiring assembly (PWA) shielding in an electrical device such as a facsimile machine. The mounting comprises a frame including a substantially flat frame floor, at least one PWA edge card connector, and at least one frame fastener. Continuous shielding walls are positioned immediately adjacent to the frame floor, and the PWA comprises a substantially flat component-mounting surface and a shielding surface, at least one PWA edge card, and at least one frame fastener receiver. The PWA edge card is inserted into the PWA edge card connector and the frame fastener is coupled to the frame fastener receiver such that the PWA component-mounting surface is held within an electromagnetically-shielded volume bounded by the PWA shielding surface, the shielding walls, and the frame floor.

Mounting method and apparatus for PWA shielding

A method and apparatus for the holding of paper rolls in printing devices, e.g., facsimile machines, which includes a housing for accommodating the paper roll, the housing comprising parallel and substantially flat first and second housing endplates along a longitudinal axis; first and second paper roll supports adapted to fit first and second ends of the paper roll, respectively, the first and second paper roll supports flexibly coupled to the first and second housing endplates; and first and second springs for pressing the first and second paper roll supports against the first and second ends of the paper roll, respectively, to compressively hold the paper roll when the paper roll is inserted in the holder, the first spring coupled between the first housing endplate and the first paper roll support, and the second spring coupled between the second housing endplate and the second paper roll support.

Paper roll holder and method

A method and apparatus for spring mounting of multi-layered electronic assemblies including a top cover; a bottom cover; first, second, and third mounting supports; a printed wiring board in contact with and supported by the first, second and third mounting supports at first, second, and third mounting locations, respectively; springs for clamping the multi-layered electronic assembly between the top cover and the bottom cover; a load plate for supporting the assembly, the load plate including fourth, fifth, and sixth mounting supports aligning with the first, second, and third mounting locations, respectively, and in contact with the springs; and the top cover contacting the load plate and coupled to the bottom cover, wherein the coupling of the top cover and bottom cover compresses the springs and securely clamps the multi-layered electronic assembly within the top and bottom covers.

Spring mounting of multi-layered electronic assemblies

A self-tensioning differential capstan cable drive mechanism having canted rollers on either side of the differential capstan around each of which rollers is looped a cable passing from the larger to the smaller drum of the differential capstan.

Self-tensioning differential capstan cable drive mechanism

A compact gimbal system having an integral radio frequency signal path therethrough wherein common bearings are utilized in the rotary joints of the radio frequency path and for supporting and rotating the gimballed load and wherein radio frequency waveguide may be used as at least a part of the required structure of the system.

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Seguin, TX, United States of America

Robert A Johnson