James Lawrence Ott

US Patent:

6452396, Sep 17, 2002

Filed:

Sep 6, 2001

Appl. No.:

09/947961

Inventors:

Ellen Ott - Akron OH 44333
James H. Ott - Akron OH 44333

International Classification:

G01V 311

US Classification:

324327, 324239, 324329

Abstract:

A hand tool has a handgrip attached to a ground-piercing probe, which is manually insertable in the soil. The probe has a chamber in which at least one inductor is positioned and connected to metal detection circuitry. The preferred circuitry has a pulse generator applying current pulses to an inductor for inducing eddy currents in a buried target object. After the pulse terminates, the decaying coil voltage is sampled at different times to detect both the presence and range of the object, as well as the type of metal in the object. An asymmetric magnetic field pattern about the probe is aligned with a direction pointing indicium on the handgrip and provides directional sensitivity. The coil voltage samples are applied to signaling circuitry, which provides an audible signal which is a series of bursts of an audio tone. The pitch of the audio tone signals the presence, range and bearing of the buried metal object, while the pulse rate of the bursts signals the metal type.

US Patent:

6456079, Sep 24, 2002

Filed:

Sep 6, 2001

Appl. No.:

09/947816

Inventors:

Ellen Ott - Akron OH 44333
James H. Ott - Akron OH 44333

International Classification:

G01V 311

US Classification:

324327, 324239, 324329

Abstract:

A hand tool has a handgrip attached to a ground-piercing probe, which is manually insertable in the soil. The probe has a chamber in which at least one inductor is positioned and connected to metal detection circuitry. The preferred circuitry has a pulse generator applying current pulses to an inductor for inducing eddy currents in a buried target object. After the pulse terminates, the decaying coil voltage is sampled at different times to detect both the presence and range of the object, as well as the type of metal in the object. An asymmetric magnetic field pattern about the probe is aligned with a direction pointing indicium on the handgrip and provides directional sensitivity. The coil voltage samples are applied to signaling circuitry, which provides an audible signal which is a series of bursts of an audio tone. The pitch of the audio tone signals the presence, range and bearing of the buried metal object, while the pulse rate of the bursts signals the metal type.

US Patent:

55333478, Jul 9, 1996

Filed:

Mar 1, 1995

Appl. No.:

8/396698

Inventors:

James H. Ott - Akron OH
Mark E. Anglin - Wadsworth OH
James P. Henderson - Tallmadge OH

Assignee:

Novar Electronics Corporation - Barberton OH

International Classification:

F25B 4100

US Classification:

62115

Abstract:

A method of controlling a refrigeration case of a refrigeration system including the steps of locating an expansion valve of a refrigeration case, moving the expansion valve of the refrigeration case out of a predetermined position, sampling temperature readings from an evaporator coil of a refrigeration case, calculating an adaptive proportional-integral-differential (PID) of the temperature of the evaporator coil for the refrigeration case, and moving the expansion valve to a second position closer to the predetermined position based on the calculated proportional-integral-differential until the temperature of the evaporator coil for the refrigeration case is within a predetermined temperature range.

US Patent:

RE290084, Oct 19, 1976

Filed:

Aug 4, 1975

Appl. No.:

5/601595

Inventors:

James H. Ott - Akron OH

Assignee:

Novar Electronics Corporation - Barberton OH

International Classification:

G06F 100

US Classification:

3401725

Abstract:

An electronic apparatus and method suitable for automatic machine interrogation of individuals for identifying persons such as those seeking admittance to secure areas or seeking an extension of credit. Acoustical wave energy is applied by an oscillator and transducer to the person's body, such as one end of an arm. Another transducer contacts another body part, such as the other end of the arm, to receive the body-transmitted energy. The frequency response characteristics of the body part are then detected by suitable correlation means to determine the amplitude and phase transfer functions. Comparison of a previously known transfer function of a person with a subsequently measured transfer function permits a machine decision whether the functions represent the same person.

US Patent:

40040941, Jan 18, 1977

Filed:

Mar 16, 1976

Appl. No.:

5/667351

Inventors:

James H. Ott - Akron OH

Assignee:

Novar Electronics Corporation - Barberton OH

International Classification:

H04R 102

US Classification:

179 1E

Abstract:

A device for use in an enclosure associated with an audio speaker or other sound producing device and which permits relatively large volume changes within the enclosure as a result of relatively small pressure changes so that relatively small enclosures can be as effective as enclosures of larger volume. The device reduces the energy required from the speaker to change the volume of the interior of the enclosure. The device has a displaceable walled container having an expansible and contractible volume containing a composition of matter at gas phase/liquid phase equilibrium at its boiling point under atmospheric or other ambient pressure. The composition of matter preferably selected is one having the characteristic that relatively large volumes undergo a phase change for relatively small energies. The composition is heated to its boiling point. The heater is actuated by a volume responsive switch to maintain the container within a selected range of volume.

US Patent:

52129837, May 25, 1993

Filed:

Mar 18, 1991

Appl. No.:

7/671090

Inventors:

James H. Ott - Akron OH
Mark E. Anglin - Wadsworth OH

Assignee:

Novar Electronics Corporation - Barberton OH

International Classification:

G01F 168

US Classification:

7320415

Abstract:

A pair of thermistors are mounted in a tube which diverts a minor portion of the air flowing through a duct of an HVAC system. One thermistor is heated by a feedback control system to maintain a substantially constant temperature differential between the thermistors. A signal representing the flow velocity is detected by detecting the power which is applied to the heating body to maintain the constant differential. That power represents the thermo power being carried away from the heated body. The temperature of the unheated thermistor is also detected. The signals are converted to digital form and applied to a computer for computing the flow rate in the ducts.

US Patent:

43684696, Jan 11, 1983

Filed:

Sep 17, 1979

Appl. No.:

6/075943

Inventors:

James H. Ott - Akron OH
James S. Rice - Akron OH

Assignee:

Novar Electronics Corporation - Barberton OH

International Classification:

H04B 700

US Classification:

343100ST

Abstract:

A method and apparatus for use in scientific measurement analysis and control. Travelling interference fringes are generated by radiating at least two different periodic waves at two different frequencies, one from each of two different radiators. The waves are received, mixed and filtered to detect at least one beat signal from these waves which represents the travelling interference fringe. The phase of that beat signal is detected relative to a reference signal of the same frequency as the beat signal. The radiated waves may be received at a second antenna and the phase of the beat of the waves at the first antenna is compared to the phase of the beat as observed at the second antenna. A third wave may be radiated from the first antenna to provide a reference signal which is the beat generated by the third wave and the other wave from the same radiator.

US Patent:

40489868, Sep 20, 1977

Filed:

Aug 5, 1976

Appl. No.:

5/712038

Inventors:

James H. Ott - Akron OH

Assignee:

Novar Electronics Corporation - Barberton OH

International Classification:

A61B 1000

US Classification:

128 2R

Abstract:

An apparatus for use in the medical diagnosis of human and other bodies and also for use in the automatic machine interrogation of individuals for identifying persons such as those seeking credit or admittance to a security area. Oscillatory wave energy, preferably a sonic signal, is applied with a selected polarization to a first part of a body. The polarization of the wave energy transmitted through a portion of the body is detected at a second part of the body. Data representing the shift in polarization is stored for subsequent comparison to a polarization shift which is subsequently measured by the same steps. Comparison of the data representing the two polarization shifts can be used for quantitative and qualitative medical diagnosis as well as for an automatic machine decision whether the polarization shifts are sufficiently similar that they were derived from the same individual. The use of multiple frequencies permits the derivation of a polarization shift characteristic over a range of frequencies. Apparatus is disclosed comprising a wave generating transducer and a plurality of receiving transducers mounted in side-by-side arcuate arrangement for at least partially surrounding the second body part.