"ROTARY-TO-RECIPROCATING DEVICE"
Zane Chadrick Kiniski, Patent: 3811058 http://www.freepatentsonline.com/3811058.pdf http://www.google.com/patents?q=patent%3A3811058 RECIPROCATING MOTOR WITH MOTION CONVERSION MEANS Robert D. Tracy Patent : 3703653 http://www.google.com/patents?q=patent%3A3703653 MAGNETIC MOTOR HARRY X. -WORTHINGTON
Patent : 1724446 http://www.google.com/patents?q=patent%3A1724446 RECIPROCATING MOTOR WITH MAGNETIC DRIVE MEANS Jack E. Horner
Patent number: 3636391 http://www.google.com/patents?q=patent%3A3636391 ELECTRIC MOTOR
GUSTAVE SEIDEL
Patent number: 912037 http://www.google.com/patents?q=patent%3A912037 PERMANENT MAGNET MOTION CONVERSION DEVICEJohn W. Ecklin - Patent number: 3879622
http://www.google.com/patents?q=patent%3A3879622Permanent magnet motor
Howard R. Johnson - Patent number: 4151431
http://www.google.com/patents?q=patent%3A4151431