James J Hitt

Address:

PO Box 415, Weston, WV 26452

VIN:

1FAHP35N78W238608

Make:

FORD

Model:

FOCUS

Year:

2008

Author:

James E. Hitt

ISBN #:

0525215468

US Patent:

43374565, Jun 29, 1982

Filed:

Apr 16, 1979

Appl. No.:

6/030197

Inventors:

George W. Deffendall - Reading PA
James J. Hitt - Willow Grove PA

Assignee:

Leeds & Northrup Company - North Wales PA

International Classification:

H03K 1320

US Classification:

340347NT

Abstract:

An analog to digital converter of the ramp-integrator type with provisions to reduce errors due to offset voltages. The cycle which is utilized includes a preconditioning cycle during which the capacitor is charged while the input to the buffer amplifier is connected to the datum level voltage, such as ground. A microprocessor is used to compute the unknown signal.

US Patent:

50779028, Jan 7, 1992

Filed:

Jul 27, 1990

Appl. No.:

7/560842

Inventors:

James J. Hitt - Broad Axe PA

International Classification:

B23D 4904

US Classification:

30394

Abstract:

A non-binding wire saw having a back and forth cutting motion is disclosed. The saw is power driven and is found suitable for light duty such as tree trimming operations.

US Patent:

47790539, Oct 18, 1988

Filed:

Mar 27, 1986

Appl. No.:

6/844640

Inventors:

James J. Hitt - Willow Grove PA

Assignee:

General Signal Corporation - Stamford CT

International Classification:

G06G 720
G06G 718

US Classification:

328144

Abstract:

The square root insertion circuit of this invention has an operational amplifier circuit with a multiplying circuit of the voltage-time product type in its negative feedback path. The multiplying circuit is connected so that the time factor is proportional to the amplifier output signal and the voltage factor is also proportional to the amplifier output signal. Thus, the multiplying circuit acts as a squaring circuit to cause the output signal of the amplifier to be directly related to the square root of its input signal.

US Patent:

41930630, Mar 11, 1980

Filed:

May 15, 1978

Appl. No.:

5/905688

Inventors:

James J. Hitt - Willow Grove PA
George C. Mergner - Glenside PA

Assignee:

Leeds & Northrup Company - North Wales PA

International Classification:

G08C 1900
G01R 2726

US Classification:

340200

Abstract:

The displacement of the diaphragm in a differential pressure sensor of the differential capacitor type produces an output signal substantially linearly related to the displacement. The capacitors are charged in parallel from a constant current source for a fixed period of time and discharged through separate discharge circuits for another fixed period of time. An integrating differential amplifier connected to the two capacitors as they discharge produces an output signal related to the area between the two discharge curves which is substantially linearly related to the extent of displacement of the diaphragm of the differential pressure sensor. The output from the amplifier is used to control the current output from the device.

US Patent:

43896740, Jun 21, 1983

Filed:

Mar 5, 1981

Appl. No.:

6/240660

Inventors:

James J. Hitt - Willow Grove PA
Scott L. Kern - Perkasie PA

Assignee:

Leeds & Northrup Company - North Wales PA

International Classification:

H04N 314
H03K 5159

US Classification:

358213

Abstract:

A preamplifier for use primarily with a solid state line scanner for amplifying the signal output from the scanner and suppressing the noise from switching spikes featuring a cascode-connected input stage in a preamplifier having its gain stabilized by negative feedback.

US Patent:

45061742, Mar 19, 1985

Filed:

Nov 12, 1982

Appl. No.:

6/441004

Inventors:

James J. Hitt - Willow Grove PA

Assignee:

General Signal Corporation - Stamford CT

International Classification:

G06G 712
G06G 720

US Classification:

307490

Abstract:

A square root circuit is provided with a high gain amplifier for receiving the input and a squaring circuit in the negative feedback circuit of the amplifier to produce the desired square root output. A second negative feedback path is provided with a feedback resistor and switching means for selectively completing the connection of the second feedback path when the amplifier input falls below a certain predetermined level so that the amplifier provides a linear response in the low input region. This linear response will make the accurate setting of the zero possible without any manual switching in the amplifier feedback.