Joseph H Mallon, 5521472 Towerguard Dr, Humble, TX 77339

4483196, Nov 20, 1984

Mar 7, 1983

6/472851

Anthony D. Kurtz - Englewood NJ
Joseph R. Mallon - Franklin Lakes NJ
Timothy A. Nunn - Ridgewood NJ

Kulite Semiconductor Products, Inc. - Ridgefield NJ

G01L 906

73730

A pressure transducer employs a tubular glass structure of a "D" shaped cross section, with the arcuate section of the "D" shaped configuration being substantially thicker than the base section. A sensor array is positioned on the underside of the base section while a pressure conducting fluid is directed through the tubular member to provide deflection of the base to cause the sensor array to provide an output indicative of pressure variations in the fluid medium. The sensor array as positioned on the underside of the base is both electrically and mechanically isolated from the pressure conducting medium.

4445108, Apr 24, 1984

Sep 28, 1982

6/425244

Joseph R. Mallon - Franklin Lakes NJ
Anthony D. Kurtz - Englewood NJ
Timothy A. Nunn - Ridgewood NJ

Kulite Semiconductor Products, Inc. - Ridgefield NJ

G01L 122

338 4

There is disclosed a spreading resistance piezoresistive transducer which employs a planar diaphragm member fabricated from a semiconductor material and having deposited on a surface thereof at least three contact areas. A first contact area is located central to the diaphragm with a second area near the periphery of the diaphragm. A third contact is of a larger area and is positioned between the first and second contacts. A source of biasing potential is applied between the first and second contacts to cause current flow indicative of the spreading resistance between the contacts. The value of the spreading resistance varies in accordance with a force applied to the diaphragm.

4695817, Sep 22, 1987

Jun 26, 1985

6/748836

Anthony D. Kurtz - Teaneck NJ
Joseph R. Mallon - Franklin Lakes NJ

Kulite Semiconductor Products, Inc. - Ridgefield NJ

G01L 122

338 4

A transducer employs two separate pressure input ports. Each port is associated with a separate metal diaphragm behind which diaphragm is secured a transducer structure having a cup-shaped silicon pressure diaphragm which is retained within a hollow of the transducer which is oil filled. One transducer structure is a half bridge array and monitors the main pressure applied to the positive port. A full bridge is formed by two resistors associated with the positive port and two resistors in an array associated with the other port which is the negative port. The resistors in the array at the negative port are selected to be larger in magnitude than those at the positive port and exhibit a greater sensitivity per unit of applied pressure. By selecting the magnitudes of the resistors associated with each port as well as the sensitivity, the shunting of resistors at each port will cause the composite transducer to provide an output which is indicative of the pressure applied to the positive port as modified or corrected by the pressure applied to the negative port.

4456901, Jun 26, 1984

Aug 31, 1981

6/298275

Anthony D. Kurtz - Englewood NJ
Timothy A. Nunn - Ridgewood NJ
Joseph R. Mallon - Franklin Lakes NJ

Kulite Semiconductor Products, Inc. - Ridgefield NJ

G01L 122

338 4

A transducer structure is disclosed which comprises a single crystal semiconductor diaphragm dielectrically isolated by a layer of silicon dioxide from a single crystal gage configuration. The methods depicted employ high dose oxygen which is ion implanted into a monocrystalline wafer to form a buried layer of silicon dioxide with the top surface of the wafer being monocrystalline silicon. An additional layer of silicon is epitaxially grown on the top of the wafer to enable the etching or formation of a desired gage pattern.

4063209, Dec 13, 1977

May 1, 1975

5/573624

Anthony D. Kurtz - Englewood NJ
Joseph R. Mallon - Alpine NJ

Kulite Semiconductor Products, Inc. - Ridgefield NJ

G01L 122

338 4

A transducer of an H-shaped cross section employs a depression relatively equal to the line width of a diffused piezoresistor located in said depression. The depression is sealed by means of a glass member which acts as a "stop" for the transducer for all forces in excess of a rated force which causes a maximum diaphragm deflection relatively equal to the depth of said depression as selected in accordance with said resistor line width and the overall diaphragm diameter.

4764747, Aug 16, 1988

Nov 23, 1987

7/124089

Anthony D. Kurtz - Teaneck NJ
Joseph R. Mallon - Franklin Lakes NJ
Timothy A. Nunn - Ridgewood NJ

Kulite Semiconductor Products, Inc. - Leonia NJ

G01L 122

338 2

A glass header structure for a pressure transducer employs a cylindrical member fabricated from a borosilicate glass having a thermal expansion coefficient which matches silicon. The glass header has a central aperture which extends from the top to the bottom surface. Positioned about the central aperture are four smaller apertures located at 90 degree intervals and each containing an elongated terminal pin. The pins are of a nail head configuration with a flat top head of a larger diameter than the diameter of the apertures and of the main pin body. Affixed to the flat top surfaces of the terminal pins by means of ball bonding are wires which connect to the terminal areas of a semiconductor pressure transducer which is mounted over the central aperture of the header. In this manner, the glass header serves to electrically and mechanically isolate the semiconductor transducer from the external environment and to further provide isolation of the transducer from voltage and heating effects which are produced during the assembly process necessary to fabricate a complete transducer unit.

5237076, Aug 17, 1993

Aug 28, 1992

7/937615

Joseph J. Mallon - Stamford CT
Paul M. Adams - Redondo Beach CA

The Aerospace Corporation - El Segundo CA

C07D30114
C07D30316
C07D30318

549562

The invention relates to new, liquid crystalline di(alkoxyglycidyl) compounds of optionally ring substituted 1,4-dibenzoyloxybenzenes in which an alkoxy group consisting of 2 to 8 carbon atoms is incorporated between the glycidyl groups and the 1,4-dibenzoyloxybenzene, a synthesis of 4,4'-di(hexoxyglycidyl)-(1,4-dibenzoyloxybenzene), furthermore epoxy resin mixtures containing the new dialkoxyglycidyl compounds and the epoxy resin mixtures thereof in curable mixtures.

4516430, May 14, 1985

Dec 5, 1983

6/558033

Anthony D. Kurtz - Teaneck NJ
Timothy A. Nunn - Ridgewood NJ
Joseph R. Mallon - Franklin Lakes NJ

Kulite Semiconductor Products, Inc. - Ridgefield NJ

G01L 122

73727

There is disclosed a medical transducer apparatus which employs composite planar members each of which is fabricated from a highly insulative material. The members are positioned in congruency and a first member which may be a composite member has a diaphragm area located on the surface thereof to which a piezoresistive gage is bonded. The gage is surrounded by an aperture in another member to enable leads from the gage to be directed to an interconnection and circuit board also fabricated from an insulator material. The structure provides isolation to the patient in regard to the biasing source used for the gage array and also provides isolation based on external voltage which serves to protect the transducer during operation.