WILLIAM A KENNEDY
Medical Practice in Palo Alto, CA

4671379, Jun 9, 1987

Sep 3, 1985

6/771719

William S. Kennedy - Palo Alto CA
Stephen J. Blumenkranz - Redwood City CA

Petrophysical Services, Inc. - Mountain View CA

G01V 140

181106

A method and apparatus for generating a seismic wave in a borehole in the earth is disclosed. A portion of the borehole, which may be the bottom of the hole or any other point along its length, is selected as the site for seismic wave generation. A device is provided to oscillate the borehole fluid in a selected portion of the borehole to establish a resonant standing pressure wave of desired frequency within the fluid. The wave is maintained by continuing to supply energy to the fluid to replace losses due to fluid friction, structural losses and radiated acoustic energy. The standing wave thus created is radiated through the borehole wall into the earth and is eventually received by seismic detectors located on the surface.

4715469, Dec 29, 1987

Aug 29, 1985

6/770796

Arthur K. Yasuda - San Francisco CA
William S. Kennedy - Palo Alto CA
Peter S. Aronstam - Cupertino CA

Petrophysical Services, Inc. - Mountainview CA

G01V 140

181102

A seismic receiver is provided for measuring seismic signals transmitted through the earth and received in a well borehole. A reversible electrical motor drives a harmonic drive reducer which amplifies the torque provided to drive a ball screw. The ball screw moves linearly along the axis of the well borehole to control the extension of a clamp arm into and out of an extended position in contact with subsurface earth adjacent the well borehole. A releasable electric clutch is provided so the receiver is retrievable in the event of a power failure while the clamp arm is extended.

4465478, Aug 14, 1984

Oct 14, 1982

6/434223

Eric E. Sabelman - Menlo Park CA
Timothy A. Koogle - Redwood City CA
William Kennedy - Palo Alto CA

Collagen Corporation - Palo Alto CA

A61M 500

604224

A syringe assist device including a frame and moveable carriage that are respectively attached to a conventional syringe and its plunger. The frame has a toothed rack and the carriage contains a force amplifying gear and lever mechanism. A thumb ring transmits the force applied by the user's thumb to the lever to rotate the gear and move the carriage along the frame. This action in turn applies amplified compression to the syringe plunger. A ratchet connection between the lever and the gear enables the movement of the carriage to be continued without force amplification when the lever has reached the end of its stroke.

4509587, Apr 9, 1985

Aug 30, 1982

6/412579

Thomas S. Clark - Palo Alto CA
William S. Kennedy - Palo Alto CA

F25B 2900

165 61

A passive temperature control shipment container is provided having a central chamber surrounding a sample or specimen wherein the central chamber has two conductive walls, one of which is in contact with a heat source and one with a heat sink to provide a specified temperature change profile and to maintain a specified temperature time relationship in the shipping container.