Paul W Houghton DeceasedSeattle, WA

4866984, Sep 19, 1989

May 13, 1988

7/195364

Paul J. Houghton - Los Gatos CA

Measurex Corporation - Cupertino CA

G01L 504

73159

A sensor for continuous sensing of a quantity of paper related to its elastic modulus and stiffness including a paper support in the form of a segmented ring, and a free running wheel which depresses the paper in the center of the ring as the paper passes over it. Force transducers mounted to sense force exerted on the segments provides a measure of a characteristic of the paper related to its elastic modulus and bending stiffness. The segments are aligned so that separate determinations of machine direction and cross-direction characteristics are made. The outputs of this sensor, together with basis weight, thickness and paper velocity are used to determine the strength of the paper on a continuous basis. Separate values of machine direction and cross-direction strength can be determined, as can a burst pressure strength.

4841911, Jun 27, 1989

Feb 29, 1988

7/162026

Paul Houghton - Woodside CA

A63F 906

119 29

A variable maze device for enriching the environment of a contained primate, or for use as a crib toy, the device including a variable and programmable maze as well as a mechanism whereby a contained primate or a human infant may be instructed as to the location of the correct pathway through the maze.

4727825, Mar 1, 1988

Jun 26, 1986

6/878999

Paul Houghton - Woodside CA

A63F 906

119 29

An educational device for enriching the environment of a contained primate, including a variable and programmable maze as well as a mechanism whereby the primate may be instructed as to the location of the correct pathway through the maze.

5164048, Nov 17, 1992

Jan 25, 1991

7/645949

David A. Bossen - Palo Alto CA
Mathew G. Boissevain - Los Altos CA
Paul J. Houghton - Los Gatos CA

Measurex Corporation - Cupertino CA

D21F 706
D21F 700
G01B 1106
G01B 706

162272

Apparatus utilized in the continuous manufacture of sheet material, such as paper, includes a frame having at least one hollow beam for carrying means such as sheet-gauging heads operatively associated with the sheet material being fabricated. Thermal stability of the at least one hollow beam is enhanced by circulating fluid within the beam. Fluid displacement means which may be in the form of a series of inserts disposed end-to-end within the hollow beam define with the interior wall of the beam a fluid conduction channel. The fluid displacement means may also include generally helically oriented guides projecting into the fluid conduction channel for inducing turbulence in the circulating fluid.

4699644, Oct 13, 1987

Dec 23, 1985

6/812783

Alan E. Brandt - Redwood City CA
Paul Houghton - Woodside CA

C05G 300
C05G 304

71 27

A plant nutrient composition is described that includes those mineral, ionic, and hormones required by plants to carry out their biological and metabolic processes. The composition includes ______________________________________ Component Concentration (moles/L) ______________________________________ Ca. sup. ++ 2. times. 10. sup. -3 to 7. times. 10. sup. -3 Co. sup. ++ 0. 5. times. 10. sup. -7 to 3. times. 10. sup. -7 MoO. sub. 4 0. 5. times. 10. sup. -6 to 3. times. 10. sup. -6 K. sup. + 4. times. 10. sup. -6 to 8. times. 10. sup. -6 I. sup. - 4. times. 10. sup. -6 to 8. times. 10. sup. -6 Fe. sup. +++ 0. 5. times. 10. sup. -3 to 3. times. 10. sup. -3 Cu. sup. ++ 5. times. 10. sup. -8 to 3. times. 10. sup. -7 Mg. sup. ++ 7. times. 10. sup. -4 to 2. times. 10. sup. -3 Mn. sup.

4936140, Jun 26, 1990

Jan 22, 1988

7/146930

Paul J. Houghton - Los Gatos CA
John D. Goss - San Jose CA
Mathew G. Boissevain - Los Altos Hills CA

Measurex Corporation - Cupertino CA

G01L 504

73159

A running blade is adapted to move at the same speed as a continuously running sheet and to generate a burst perforation through the sheet. The force exerted by the blade against the sheet is measured and used to calibrate a non-destructive sheet strength sensor.

5165277, Nov 24, 1992

Jul 25, 1991

7/736045

David A. Bossen - Palo Alto CA
Mathew G. Boissevain - Los Altos CA
Paul J. Houghton - Los Gatos CA
Henry R. Markus - Cupertino CA

Measurex Corporation - Cupertino CA

G01N 3334
G01N 3344

73159

A sheet-gauging apparatus for determining properties of a moving sheet of material includes a frame having parallel upper and lower horizontal supports extending above and below the sheet in a direction transverse to the direction of travel of the sheet. Upper and lower tracks are carried by the upper and lower supports, respectively, each of the tracks including a flat upper surface and a lower surface having tapered end portions. Upper and lower carriages are mounted on the upper and lower tracks, respectively, for bidirectional travel along the tracks, each of the carriages including upper wheels in rolling contact with the upper surface of the track and lower wheels in rolling contact with the tapered end portions of the lower surface of the track. Displacement of the carriages in the directions orthogonal to the direction of carriage travel is thereby minimized. Upper and lower gauging head assemblies disposed on opposite sides of the sheet and coupled respectively to the upper and lower carriages are adapted to measure characteristics of the sheet.

5111688, May 12, 1992

Mar 21, 1991

7/673856

Paul J. Houghton - Los Gatos CA
John D. Goss - San Jose CA
Mathew G. Boissevain - Los Altos Hills CA

Measurex Corporation - Cupertino CA

G01L 504

73159

A running blade is adapted to move at the same speed as a continuously running sheet and to generate a burst perforation through the sheet. The force exerted by the blade against the sheet is measured and used to calibrate a non-destructive sheet strength sensor.