Patented Inventions
The US PTO lists 24 issued patents with Wally E. Rippel as inventor:
- US 6954010 Lamination cooling system 2005-10-11
- US 6674164 System for uniformly interconnecting and cooling 2004-01-06
- US 6232742 Dc/ac inverter apparatus for three-phase and single-phase motors 2001-05-15
- US 5914590 Electrical power regulator 1999-06-22
- US 5751150 Bidirectional load and source cycler 1998-05-12
- US 5441824 Quasi-bipolar battery requiring no casing 1995-08-15
- US 5099187 Power connect safety and connection interlock 1992-03-24
- US 5099186 Integrated motor drive and recharge system 1992-03-24
- US 5041780 Integrable current sensors 1991-08-20
- US 4920475 Integrated traction inverter and battery charger apparatus 1990-04-24
- US 4884631 Forced air heat sink apparatus 1989-12-05
- US 4874681 Woven-grid sealed quasi-bipolar lead-acid battery construction and fabricating method 1989-10-17
- US 4873460 Monolithic transistor gate energy recovery system 1989-10-10
- US 4873161 Positive paste with lead-coated glass fibers 1989-10-10
- US 4664992 Composite battery separator 1987-05-12
- US 4603093 Lead-acid battery 1986-07-29
- US 4570212 Silicon controlled rectifier polyphase bridge inverter commutated with gate-turn-off thyristor 1986-02-11
- US 4415963 FET commutated current-FED inverter 1983-11-15
- US 4384321 Unity power factor switching regulator 1983-05-17
- US 4353969 Quasi-bipolar battery construction and method of fabricating 1982-10-12
- US 4319318 Voltage reapplication rate control for commutation of thyristors 1982-03-09
- US 4275130 Bipolar battery construction 1981-06-23
- US 3808481 Commutating Circuit for Electrical Vehicle 1974-04-30
- US 3641364 SCR Chopper Circuit 1972-02-08
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