James G Cushman

US Patent:

7167363, Jan 23, 2007

Filed:

Sep 8, 2003

Appl. No.:

10/657444

Inventors:

James Cushman - San Jose CA, US
Sridevi Iyengar - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H05K 7/20

US Classification:

361694, 361690, 361692

Abstract:

An air stream distribution apparatus directs portions of an air stream, at substantially ambient temperatures, to serially arranged circuit board components of a circuit board assembly. The air stream distribution apparatus splits an incoming air stream into air stream portions and directs each air stream portion toward each serially arranged circuit board component. Such direction of the portion of the air stream, by the air stream distribution apparatus, minimizes overheating and failure of the circuit board components. Furthermore, the air stream distribution apparatus minimizes a decrease in the pressure of the air stream as the air stream travels from the air stream source. The air stream distribution apparatus, therefore, ensures that circuit board components located at relatively large distances from the air stream source receive air from the air stream to minimize overheating and potential failure.

US Patent:

44178255, Nov 29, 1983

Filed:

Apr 7, 1983

Appl. No.:

6/482815

Inventors:

James E. Cushman - San Jose CA
Mario G. Plaza - Fremont CA
Helmut K. Waibel - Fremont CA

Assignee:

Durango Systems, Inc. - San Jose CA

International Classification:

B41J 1500

US Classification:

400605

Abstract:

An improved print medium driving mechanism for a line or serial printer adapted for advancing either individual cut sheets or a continuous web having regularly spaced perforations preformed along its edges. The driving mechanism operates in either a friction drive mode or a spur drive mode. In friction drive mode, print medium inserted into the mechanism, is guided to a driven friction feed roller. The medium is then clamped between the feed roller and a plurality of pressure rollers. Driven by the feed roller, the medium is advanced and guided around that roller and then between immediately adjacent surfaces of a printhead and a platen. If cut sheets are being driven, they are inserted between lateral guides adjusted to the width of the sheet. Such sheets, after being advanced past the platen, contact a deflector surface of a cover which guides them into a second clamping, driven engagement in a friction feed assembly. Alternatively, perforated, preformed continuous web printing medium may be mated along its edges to spur drive members.

US Patent:

42278210, Oct 14, 1980

Filed:

Sep 20, 1978

Appl. No.:

5/943789

Inventors:

Mario G. Plaza - Fremont CA
James E. Cushman - San Jose CA

Assignee:

Durango Systems, Inc. - San Jose CA

International Classification:

B41J 1500

US Classification:

4006163

Abstract:

A web drive mechanism to advance the print medium of a line or serial printer apparatus including a first stationary guide track for guiding the print medium along a defined path intermediate a medium supply position and a printing position, a platen about the printing position for receiving the medium, at least one rotor drive member having a rotor positioned adjacent to the guide track along the defined path intermediate the supply position and the platen with the outer peripheral surface of the rotor being adjacent to at least a portion of the arcuate path of the guide track to permit the print medium to travel intermediate the guide track and the rotor, the rotor drive member including a first medium gate for urging the print medium in engagement with the peripheral surface of the rotor as the medium advances intermediate the supply position and the platen, and a second medium gate for holding the print medium as it advances intermediate the platen and a medium take-up position, and a drive means engaging the rotor drive member for driving the rotor about its axis of rotation; whereby the rotor drive member drives the print medium from the medium supply position to feed it to the platen position and simultaneously drives the print medium from the platen position to feed it to the medium take-up position.