Peter M Newgard

US Patent:

RE350168, Aug 15, 1995

Filed:

Jan 30, 1992

Appl. No.:

7/831257

Inventors:

Larry S. Gullman - La Honda CA
Roy Kornbluh - Palo Alto CA
Thomas P. Low - La Honda CA
Peter M. Newgard - Rainier WA
Eric J. Shrader - La Honda CA

Assignee:

SRI International, Inc. - Menlo Park CA

International Classification:

G01L 516
G06K 900

US Classification:

73862041

Abstract:

A three-axis force measurement stylus includes a housing and a cartridge and an interface between the housing and the cartridge wherein the interface comprises a plurality of pressure sensitive sheets, preferably of variable resistance pressure sensitive Mylar films which sense the force between the cartridge and the housing. The cartridge and the housings are disposed at a skew angle relative to the axis of the stylus to be able to sense forces in three dimensions. In a specific embodiment, the cartridge forms a conical section which mates with a complimentary conical section of the housing. Membranes of the force sensitive material are provided along three fingers from an apex of the conical section. The cartridge is preloaded against the conical section by a spring between the housing and the cartridge. Alternatively to the force sensitive film, a sheet of a piezoelectric pressure-sensitive material may be substituted.

US Patent:

45817774, Apr 15, 1986

Filed:

Mar 29, 1985

Appl. No.:

6/717787

Inventors:

Peter M. Newgard - Redwood City CA
Maria A. Geigel - Menlo Park CA

Assignee:

The Drackett Company - Cincinnati OH

International Classification:

E03D 902

US Classification:

4228

Abstract:

A sealabe dispenser adapted for mounting in a liquid containing reservoir, said reservoir having closable and openable inlet and outlet ports, the level of the liquid in said reservoir being capable of being lowered and raised by the appropriate manipulation of said inlet and outlet ports, said dispenser comprising at least one storage chamber containing material to be dispensed into said liquid reservoir, said material to be dispensed from said storage chamber by means of said liquid flowing into and out of said storage chamber, said storage chamber being provided with liquid passage means for permitting said liquid to enter and leave said chamber in response to the level of the liquid in said reservoir and venting means to vent the interior of said storage chamber to the atmosphere, moveable sealing means cooperating with said liquid passage means and said venting means to seal and unseal said liquid passage means and said venting means.

US Patent:

45151512, May 7, 1985

Filed:

Sep 27, 1982

Appl. No.:

6/404272

Inventors:

Arthur J. Slemmons - Los Gatos CA
Peter J. Newgard - Redwood City CA

Assignee:

SRI International - Menlo Park CA

International Classification:

F24J 302

US Classification:

126450

Abstract:

A solar collector is disclosed comprising a glass member having a solar selective coating thereon, and a molded, glass-reinforced concrete member bonded to the glass member and shaped to provide a series of passageways between the glass member and the fiber-reinforced concrete member capable of carrying heat exchanging fluid therethrough. The fiber-reinforced concrete member may be formed by spraying a thin layer of concrete and chopped fibers such as chopped glass fibers onto a mold to provide an inexpensive and lightweight, thin-walled member. The fiber-reinforced concrete member may have a lightweight cellular concrete backing thereon for insulation purposes. The collector is further characterized by the use of materials which have substantially matching thermal coefficients of expansion over the temperature range normally encountered in the use of solar collectors.

US Patent:

44237383, Jan 3, 1984

Filed:

Nov 4, 1977

Appl. No.:

5/848753

Inventors:

Peter M. Newgard - Redwood City CA

Assignee:

SRI International - Menlo Park CA

International Classification:

A61B 502

US Classification:

128672

Abstract:

Intra-arterial blood pressure is noninvasively measured and monitored by an electromechanical force sensor which is made up of an array of individual force sensing elements, each of which has at least one dimension smaller than the lumen of the underlying artery wherein blood pressure is to be measured, and the individual force sensitive element which generates the waveform of maximum amplitude is used to monitor blood pressure.

US Patent:

50337300, Jul 23, 1991

Filed:

Feb 28, 1990

Appl. No.:

7/486895

Inventors:

Karen R. Davies - Menlo Park CA
Peter N. Newgard - Redwood City CA
Eric J. Shrader - La Honda CA

Assignee:

SRI International - Menlo Park CA

International Classification:

B65G 5904

US Classification:

271106

Abstract:

A vacuum article pickup apparatus is disclosed which is capable of picking up single articles such as pieces of mail or sheets of paper, from a random assortment of articles of varying sizes, shapes, weights, thicknesses, and porosities. The apparatus provides a vacuum gripper and a spacer which spaces the vacuum gripper from the articles. Provision is made for adjusting the height of the vacuum gripper and the spacer to compensate for differences in height of the random assortment of articles. Provision is also made for locking the vacuum gripper and the spacer at this height during the engagement of the uppermost article, and for withdrawing the spacer from contact with the random assortment of articles after the uppermost article has been engaged by the vacuum gripper.