Robert A Ritchie

US Patent:

20090314174, Dec 24, 2009

Filed:

Feb 12, 2009

Appl. No.:

12/370582

Inventors:

Steven D. Nelson - Huntington Beach CA, US
Robert S. Ritchie - Newhall CA, US

Assignee:

Pacific Scientific Energetic Materials Company - Valencia CA

International Classification:

F42C 19/00

US Classification:

102206

Abstract:

An ARM-FIRE device for a pyrotechnic system includes a first pyrotechnic, a second pyrotechnic, a passage extending between the first and second pyrotechnics, and an actuator/blocking device positioned between the first and second pyrotechnics. The first pyrotechnic is configured to be ignited by a heat source, and the second pyrotechnic is configured to be ignited by the first pyrotechnic in the FIRE arrangement. The actuator/blocking device includes a body configured to move between a first position in the SAFE arrangement and a second position in the FIRE arrangement, an aperture extending through the body, and an actuator. The aperture is offset from the passage in the first position of the body and is aligned with the passage in the second position of the body. The actuator is configured to move the body between the first and second positions. The first pyrotechnic, the second pyrotechnic, and the actuator/blocking device occupy a volume of approximately 3.0 cubic inches or less.

US Patent:

42662311, May 5, 1981

Filed:

Nov 1, 1979

Appl. No.:

6/090368

Inventors:

Gary A. Drago - Longmont CO
Arthur L. Mix - Boulder CO
Robert T. Ritchie - Boulder CO

Assignee:

International Business Machines Corp. - Armonk NY

International Classification:

G01D 1518

US Classification:

346 75

Abstract:

During the startup and/or shutdown cycle of an ink jet printer, a movable probe in the form of a thin hollow tube, is inserted into the flight path of the ink droplets. The tube is normally positioned relative to the droplets flight path. At the shutdown cycle, the charge electrode is removed from the vicinity of the jet streams. The undeflected droplets are caught by the hollow tube. The tube is then moved to a position next to the nozzle plate. The ink jet printer head may then be turned off and all ink is caught in the tube. At startup the sequence is reversed until the tube is back at its normal position.

US Patent:

49909673, Feb 5, 1991

Filed:

Aug 21, 1989

Appl. No.:

7/396205

Inventors:

Donald F. Colglazier - Longmont CO
James H. Hubbard - Boulder CO
Michael L. Morris - Fruit Heights UT
Robert T. Ritchie - Boulder CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G03G 1500

US Classification:

355323

Abstract:

An electrophotographic copying apparatus includes a multi-function document feeder for feeding original document sheets to a platen viewing station for copying. The document feeder selectively provides (1) semiautomatic document feeding (SADF), (2) automatic document feeding (ADF), (3) recirculating automatic document feeding (RADF), and (4) manual placement of a document on the platen. A multi-function output copy module is provided for holding copies produced by the copying apparatus. The output module proivdes (1) a collator section comprising a vertical stack of collator bins, the unobstructed top bin of which also comprises (2) an exit tray, and (3) a large capacity exit bin that is located under the bottom one of the collator bins. The mode of operation of the output module is automatically determined in accordance with (1) the manner in which the operator elects to use the document feeder, and (2) the copier features, such as the number of copies or copy sets requested, use of a stapler, and/or job queuing, that are selected by the operator. In an embodiment of the invention, when a number of copy sets are to be made from an original set, the original set is first fed to the platen using the ADF.

US Patent:

42025427, May 13, 1980

Filed:

Dec 1, 1977

Appl. No.:

5/856552

Inventors:

Gerald B. Lammers - Boulder CO
Robert T. Ritchie - Boulder CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B65H 512

US Classification:

271276

Abstract:

A low inertia rotary drum supports sheets of paper of different sizes for transport and processing. The drum has a plurality of leading edge ports formed in its surface along the length of the drum. A vacuum is selectively applied to one or more of the ports in accordance with the dimension of the paper in the direction of the length of the drum. The drum has a plurality of sets of trailing edge ports formed in its surface with each of the sets being disposed a predetermined arcuate distance from the set of leading edge ports in accordance with the other dimension of the paper. Each set of trailing edge ports has the ports arranged longitudinally along the drum and parallel to the set of leading edge ports. Only one set of trailing edge ports extends for the same length as the set of the leading edge ports. One of the sets of the trailing edge ports has a vacuum applied thereto with the same number of ports of the trailing edge set having the vacuum applied thereto as the number of the leading edge ports.