Ernest F Jost

40074048, Feb 8, 1977

Apr 11, 1975

5/567152

Ernest M. Jost - Plainville MA
Lyle E. McBride - Norton MA
Teuvo J. Santala - Attleboro MA

Texas Instruments Incorporated - Dallas TX

H01H 4700

317123

The disclosure relates to high gain electrical relays which are operable at very low power levels and which, when arranged in a relay system with impedance matching to an energizing power source, are operable at the low power levels used in energizing integrated circuits. The relays utilize nickel-titanium alloy wires which are conditioned and arranged to display sharp, reversible changes in shape and modulus of elasticity as the wires are heated and cooled through a temperature transition range, the alloy wires being disposed, preferably with impedance matching means between the wires and energizing power sources, to be heated through the noted transition temperature range by directing current from such low power sources through the wires, thereby to initiate relay operation. The relay construction provides unusually high gain so that relay operation from such low power sources is effective for regulating operation of various types of components used in electrical apparatus.

40685276, Jan 17, 1978

Dec 3, 1975

5/637482

Ernest M. Jost - Plainville MA
Arthur L. Reenstra - Attleboro MA
George Trenkler - East Providence RI

Texas Instruments Incorporated - Dallas TX

G01L 910

73704

A magnetostrictive pressure transducer is disclosed wherein pressure in the range of zero to 1000 psi can be accurately measured. The pressure transducer apparatus includes a diaphragm causing the pressure to be applied unidirectionally on sensor material having the property of undergoing changes in magnetic induction when a pressure is applied thereto, the change in magnetic induction being related to the applied pressure. The change in magnetic induction is measured and thus provides a measurement of the applied pressure. Several embodiments are also disclosed for measuring vacuum. In these embodiments force is also applied unidirectionally on the sensor material.

44564732, Jun 26, 1984

May 5, 1983

6/491805

Ernest M. Jost - Plainville MA

Chemet Corporation - Attleboro MA

B22F 900

75 05A

Silver powder of high purity having a particle size from 3 to 5 micrometers in diameter is made by providing a solution of silver nitrate in deionized water containing excess ammonium hydroxide, spraying into the solution while stirring it an aqueous solution of hydrazine in deionized water in an amount in excess of that theoretically required to reduce the silver nitrate to silver metal.

59637722, Oct 5, 1999

Dec 3, 1998

9/204805

Ernest M. Jost - Plainville MA
Kirk McNeilly - Harmony RI

Chemet Corporation - Attleboro MA

B22F 102

419 21

Electrical contact material made from intimate mixtures of silver powder and a powder of a second phase material is shown in which the powder of the second phase material is milled to produce a selected grain distribution of approximately 90% less than 7-10 microns, approximately 50% between 2 and 5 microns and approximately 10% less than 0. 8 to 1. 0 microns. The powder of the second phase material is added to a silver salt solution, ammonium hydroxide and hydrazine hydrate to form a precipitate of second phase material particles covered with silver. For applications in which the particles need to be free flowing the particles are compacted together without any binder, broken into chunks and milled to provide granules. In one embodiment homogeneously doped tin oxide particles are disclosed in which tin oxide and the oxide of the dopant are dissolved in nitric acid to produce finely dispersed tin oxide and dopant oxide. The oxides are calcined and ground to the selected grain size distribution.

39683800, Jul 6, 1976

Jan 7, 1974

5/431539

Ernest M. Jost - Plainville MA
Lyle E. McBride - Norton MA
Teuvo J. Santala - Attleboro MA

Texas Instruments Incorporated - Dallas TX

H01H 4702

307 99

The disclosure relates to high gain electrical relays which are operable at very low power levels and which, when arranged in a relay system with impedance matching to an energizing power source, are operable at the low power levels used in energizing integrated circuits. The relays utilize nickel-titanium alloy wires which are conditioned and arranged to display sharp, reversible changes in shape and modulus of elasticity as the wires are heated and cooled through a temperature transition range, the alloy wires being disposed, preferably with impedance matching means between the wires and energizing power sources, to be heated through the noted transition temperature range by directing current from such low power sources through the wires, thereby to initiate relay operation. The relay construction provides unusually high gain so that relay operation from such low power sources is effective for regulating operation of various types of components used in electrical apparatus.

47004754, Oct 20, 1987

Feb 28, 1986

6/834620

Ernest M. Jost - Plainville MA
Timo J. Santala - North Attleboro MA

Chemet Corporation - Attleboro MA

H01R 4316

29874

Electrical contacts of silver-cadmium alloy or other silver alloys suitable for I/O in which the cadmium is oxidized adjacent one side only are made providing a tube of silver-cadmium alloy, coating the inner wall with a layer of parting compound or inserting in the tube a sheet separator coated on each face with a layer of parting compound, compressing the tube to flatten it, heating the flattened tube in an oxygen-containing atmosphere to oxidize the cadmium content adjacent the outer face of the tube and to leave it unoxidized the cadmium content adjacent the inner face, and removing the layer of parting compound and cutting the wall of the flattened tube into individual contacts.

39447871, Mar 16, 1976

Dec 26, 1973

5/427891

Ernest M. Jost - Plainville MA

Texas Instruments Incorporated - Dallas TX

H05B 316
H01H 6102

219543

A heater on metal composite unit. A strip of metal has a stripe of an electrically insulative and thermally conductive synthetic resin material bonded to one surface along the length thereof. At least one stripe of an electrically conductive material, having a width less than the width of the insulative stripe, is bonded to the surface of the insulative stripe along the length thereof. A strip of electrical resistance material at least partially overlies the stripes of both the conductive and insulative materials thereby providing a path of electrical resistance material from the conductive stripe transversely across a portion of the width of the insulative stripe whereby when electrical current flows through the electrical resistance material it will supply heat to the metal strip. Apparatus and a process for fabricating these composite units are also disclosed.

58462880, Dec 8, 1998

Nov 26, 1996

8/753528

Ernest M. Jost - Plainville MA
Kirk McNeilly - Harmony RI

Chemet Corporation - Attleboro MA

B22F 102
B22F 316
B22F 904
B22F 916

75252

Electrical contact material made from intimate mixtures of silver powder and a powder of a second phase material is shown in which the powder of the second phase material is milled to produce a selected grain distribution of approximately 90% less than 7-10 microns, approximately 50% between 2 and 5 microns and approximately 10% less than 0. 8 to 1. 0 microns. The powder of the second phase material is added to a silver salt solution, ammonium hydroxide and hydrazine hydrate to form a precipitate of second phase material particles covered with silver. For applications in which the particles need to be free flowing the particles are compacted together without any binder, broken into chunks and milled to provide granules. In one embodiment homogeneously doped tin oxide particles are disclosed in which tin oxide and the oxide of the dopant are dissolved in nitric acid to produce finely dispersed tin oxide and dopant oxide. The oxides are calcined and ground to the selected grain size distribution.