Raymond L Filler

US Patent:

40705021, Jan 24, 1978

Filed:

May 5, 1976

Appl. No.:

5/683598

Inventors:

John R. Vig - Colts Neck NJ
Raymond L. Filler - Freehold NJ

International Classification:

H03H 914

US Classification:

427100

Abstract:

The apparent angle of cut of a quartz crystal resonator blank is shifted so as to give the quartz resonator a desired frequency versus temperature characteristic.

US Patent:

58697632, Feb 9, 1999

Filed:

Oct 19, 1995

Appl. No.:

8/545162

Inventors:

John R. Vig - Colts Neck NJ
Raymond L. Filler - Lebanon NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01L 100

US Classification:

73580

Abstract:

A quartz crystal resonator is excited in two different modes at the same time such that the mass change and the temperature change can be measured independently. In using such a quartz crystal the change in mass can be calculated accurately and in real time, independent of temperature effects.

US Patent:

42637023, Apr 28, 1981

Filed:

May 18, 1979

Appl. No.:

6/040366

Inventors:

John R. Vig - Colts Neck NJ
Raymond L. Filler - Freehold NJ
R. Donald Peters - Pinnellas Park FL
James M. Frank - Seminole FL

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01L 4122

US Classification:

29 2535

Abstract:

A quartz resonator is made from a chemically polished quartz plate. The plate is placed in an enclosure fitted with at least three mounting clips to receive the plate. The plate is secured to the clips with an electrically conductive adhesive capable of withstanding operation at 350 degrees C. The assembly is cleaned and a metallic electrode deposited onto the plate until the desired frequency is reached. The enclosure is then hermetically sealed. The resulting resonator can consistently withstand extremely high shocks.

US Patent:

49183729, Apr 17, 1990

Filed:

Aug 29, 1988

Appl. No.:

7/246146

Inventors:

Raymond L. Filler - Lebanon NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01R 2922

US Classification:

324727

Abstract:

The thermal hysteresis of quartz crystal resonators is measured by exciting two modes of a quartz crystal of interest with an external frequency source at a preselected temperature, calculating the difference frequency as between the modes, resetting to the original set temperature after temporarily altering the temperature, remeasuring the frequencies while maintaining the temperature and the difference frequency at the same respective values as the original values, and taking the mode frequency difference as representative of the thermal hysteresis of the crystal.

US Patent:

44517556, May 29, 1984

Filed:

Oct 18, 1982

Appl. No.:

6/434998

Inventors:

John R. Vig - Colts Neck NJ
Raymond L. Filler - Freehold NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01L 4108

US Classification:

310361

Abstract:

The acceleration sensitivity of an AT-cut quartz crystal plate resonator is educed by replacing the quartz crystal plate of the resonator with a quartz crystal plate having a flatter plate contour.

US Patent:

43814719, Apr 26, 1983

Filed:

Mar 23, 1981

Appl. No.:

6/246519

Inventors:

Raymond L. Filler - Freehold NJ
John R. Vig - Colts Neck NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01L 4108

US Classification:

310353

Abstract:

Disc shaped quartz crystal resonators of plano-convex, plano-plano, and bnvex configurations have the b-mode resistance raised relative to the c-mode resistance by the proper choice of mounting geometry, thus suppressing the undesired b-mode in precision oscillator circuits without the use of added circuitry.

US Patent:

44108222, Oct 18, 1983

Filed:

Jun 17, 1982

Appl. No.:

6/389315

Inventors:

Raymond L. Filler - Freehold NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01L 4108

US Classification:

310311

Abstract:

A crystal resonator features two crystals mounted such that the acceleration sensitivity vector of one crystal is in an antiparallel relationship to the acceleration sensitivity vector of the other crystal. The composite resonator eliminates acceleration-induced frequency shifts for acceleration in all directions.

US Patent:

55304087, Jun 25, 1996

Filed:

May 25, 1995

Appl. No.:

8/451106

Inventors:

John R. Vig - Colts Neck NJ
Raymond L. Filler - Lebanon NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H03B 504
H03B 532
H03L 102
H03L 104

US Classification:

331 69

Abstract:

The present invention provides for methods of increasing the frequency vs. temperature ("f vs. T") stability of Oven Controlled Crystal Oscillators to levels which are superior to atomic frequency standards and 100 to 10,000 times higher than that currently available from the best crystal oscillators. This method encompasses the steps of making an SC-cut quartz resonator with upper and lower turnover temperatures at or near the resonator's inflection temperature, inserting the resonator into a high-stability oscillator circuit, placing the circuit into a high-stability, high thermal gain oven and adjusting the oven temperature to a set-point at or near one of the resonator's turnover temperatures. A preferred embodiment of the method of the present invention is also disclosed which comprises forming an SC-cut quartz resonator with upper and lower turnover temperatures within 10 K of the resonator's inflection temperature, inserting the resonator into a dual-mode high-stability oscillator circuit which is placed in an oven having a thermal gain exceeding 5,000 and temperature fluctuations smaller than 50 mK and utilizing a thermometric beat frequency of said resonator to adjust the oven temperature to a set-point within 100 mK of the lower turnover temperature.