Search

Robert J Leskovec

from Concord Township, OH
Age ~80

Robert Leskovec Phones & Addresses

  • 5980 Marine St, Mentor, OH 44060 (440) 209-8337
  • 53 Overlook Rd, Painesville, OH 44077 (440) 354-5533
  • Concord Township, OH
  • Mayfield Heights, OH
  • Madison, OH
  • 3670 State Route 314, Mount Gilead, OH 43338
  • Jefferson, OH
  • Willoughby, OH
  • Austinburg, OH

Resumes

Resumes

Robert Leskovec Photo 1

President

View page
Location:
Cleveland, OH
Industry:
Research
Work:
Raltec Consulting Services
President
Education:
John Carroll University 1964 - 1966
Master of Science, Masters, Bachelors, Bachelor of Science, Physics, Electronics
Robert Leskovec Photo 2

Field Clinical Specialist

View page
Location:
34132 Victor Dr, Eastlake, OH 44095
Industry:
Hospital & Health Care
Work:
Abbott
Clinical Coronary Specialist

Lake Health Aug 1, 2011 - Jun 1, 2014
Vascular Cath Lab Manager

Cleveland Clinic Feb 2002 - Aug 2011
Hillcrest Hospital

University Hospitals of Cleveland Aug 1, 2000 - Feb 1, 2002
Radiology Technologist

Aug 1, 2000 - Feb 1, 2002
Field Clinical Specialist
Education:
Lakeland Community College
Associates
Skills:
Hospitals
Healthcare Management
Vascular
Cath Lab
Radiology
X Ray
Mri
Medical Imaging
Bls
Ekg
Surgery
Radiography
Patient Safety
Ultrasound
Pacs
Nursing
Medical Devices
Healthcare Information Technology
Healthcare
Emr
Clinical Research
Robert Leskovec Photo 3

Robert Leskovec

View page
Robert Leskovec Photo 4

President At Raltec Consulting Services

View page
Location:
Cleveland/Akron, Ohio Area
Industry:
Research

Publications

Us Patents

Resistively Ballasted Gaseous Discharge Lamp Circuit And Method

View page
US Patent:
6674249, Jan 6, 2004
Filed:
Oct 25, 2000
Appl. No.:
09/695257
Inventors:
Robert A. Leskovec - Cleveland OH
Assignee:
Advanced Lighting Technologies, Inc. - Solon OH
International Classification:
H05B 3700
US Classification:
315289, 315290, 315247, 315291, 315DIG 5
Abstract:
A circuit and method for running a metal halide arc discharge lamp from an AC power source. The circuit includes a rectifier for producing a DC voltage. The lamp is resistively ballasted by a current limiting filament connected in series with the lamp. The circuit includes a switch that closes during start up of the lamp so that the resistive filament is energized to provide immediate light prior to the lamp entering the normal run mode.

Autoresonant Piezoelectric Transformer Signal Coupler

View page
US Patent:
45844992, Apr 22, 1986
Filed:
Apr 12, 1985
Appl. No.:
6/722480
Inventors:
Robert A. Leskovec - Richmond Heights OH
John M. Davenport - Lyndhurst OH
Orvar B. Burman - San Mateo CA
Assignee:
General Electric Company - Schenectady NY
International Classification:
H01L 4108
US Classification:
310318
Abstract:
A piezoelectric transformer signal coupler utilizes a drive circuit including an oscillator constructed to excite the primary of a piezoelectric transformer at its characteristic anti-resonant frequency. Positive feedback signals modulated by the time domain response characteristic of the particular piezoelectric transformer force the oscillator to lock onto its characteristic anti-resonant frequency despite variations thereof due to temperature drift and secondary loading. The resulting drive circuit is implementable as a miniature, low mass integrated circuit mountable on the transformer's piezoceramic wafer to create a signal coupler of a single integrated structure.

Operating Circuit For An Inductively Ballasted Arc Discharge Lamp

View page
US Patent:
58960139, Apr 20, 1999
Filed:
Feb 12, 1996
Appl. No.:
8/600262
Inventors:
Robert A. Leskovec - Richmond Heights OH
Assignee:
Advanced Lighting Technologies, Inc. - Solon OH
International Classification:
H05B 3700
US Classification:
315171
Abstract:
Ballast circuitry for a metal halide lamp is disclosed enabling sustained operation with a typical 120 volt AC power source. A novel auxiliary circuit network is operatively associated with inductive type starting circuit means to provide lamp reignition when needed during each half-cycle of the AC power supply. The present auxiliary circuit network employs breakover switching means connected in series with capacitor storage means for further connection across the operating discharge lamp.

Ballast Circuit For Metal Halide Lamp

View page
US Patent:
49049070, Feb 27, 1990
Filed:
Feb 26, 1988
Appl. No.:
7/161058
Inventors:
Joseph M. Allison - Euclid OH
Richard L. Hansler - Pepper Pike OH
Park French - Aurora OH
John M. Davenport - Lyndhurst OH
Robert A. Leskovec - Richmond Heights OH
Assignee:
General Electric Company - Schenectady NY
International Classification:
H05B 4136
US Classification:
315307
Abstract:
A ballast circuit and method of operating gas discharge lamps are disclosed. The ballast circuit generates a relatively low frequency regulated square-wave current which advantageously provides for operating the gas discharge lamps during their run mode. The square-wave current delivered to the electrodes of the gas discharge lamp reduces or substantially eliminates the cataphoresis effects typically created by D. C. and 60 Hz operation of the gas discharge lamp while also reducing or substantially eliminating the detrimental acoustics resonance effects typically created by operating the gas discharge lamps at relatively high frequency of excitations.

Lamp Driver Circuit

View page
US Patent:
49873474, Jan 22, 1991
Filed:
Mar 8, 1989
Appl. No.:
7/320726
Inventors:
Robert A. Leskovec - Highland Heights OH
John M. Davenport - Lyndhurst OH
Joseph M. Allison - Euclid OH
Assignee:
General Electric Company - Schenectady NY
International Classification:
H05B 3900
H05B 4114
US Classification:
315209R
Abstract:
A lamp driver circuit is presented herein for driving a lamp circuit with an AC squarewave voltage at a relatively high frequency. The driver circuit includes a self-oscillating half-bridge circuit having a pair of input terminals connected across a DC voltage supply, which may be obtained from rectifying an AC voltage signal, and a pair of output terminals connected across a lamp circuit including a lamp, either a resistive lamp or a gaseous discharge lamp, to be energized. The circuit also includes a pair of capacitors connected together in series across the input terminals and having a junction therebetween connected to a first one of the output terminals. The bridge circuit also includes first and second switching transistors connected together in series across the input terminals. A transformer is provided having first and second windings thereon respectively connected to the first and second switching transistors for alternately applying forward biasing base drive current to the first and second transistors. A third winding on the transformer is connected in series from the junction of the two transistors to a second one of the output terminals for purposes of supplying a squarewave voltage across the output terminals for driving the lamp circuit.
Robert J Leskovec from Concord Township, OH, age ~80 Get Report