(12) United States Patent (10) Patent No.: US 6,450,922 B1 Henderson Et Al
USOO6450922B1 (12) United States Patent (10) Patent No.: US 6,450,922 B1 Henderson et al. (45) Date of Patent: Sep. 17, 2002 (54) ELECTRONIC EXERCISE SYSTEM 4,907,795 A * 3/1990 Shaw et al. .................... 482/9 4,925,189 A 5/1990 Braeunig (75) Inventors: Scott J. Henderson, Los Angeles, CA 4,976,424. A 12/1990 Sargeant et al. (US); Tyler C. Marthaler; Jeffrey Q. 5,213,555 A * 5/1993 Hood et al. ................... 482/57 Nichols, both of New York, NY (US) 5,335,188 A 8/1994 Brisson ......................... 482/8 5,462,503 A 10/1995 Benjamin et al. .............. 482/4 (73) ASSignee: Graber Products, Inc., Madison, WI 5,524.637 A 6/1996 Erickson (US) 5,527.239 A 6/1996 Abbondanza c: - - - - 0 5,785,631 A * 7/1998 Heidecke ....................... 482/5 (*) Notice: Subject to any disclaimer, the term of this 5,888,172 A * 3/1999 Andrus et al. .. ... 482/7 patent is extended or adjusted under 35 5,916,063 A 6/1999 Alessandri ..................... 482/4 U.S.C. 154(b) by 0 days. 6,024,675 A * 2/2000 Kashiwaguchi ................ 482/4 (21) Appl. No.: 09/182,977 FOREIGN PATENT DOCUMENTS (22) Filed: Oct. 29, 1998 EP O841079 8/1994 (Under 37 CFR 1.47) Related U.S. ApplicationO O Data * cited by examiner (63) Continuation of application No. 09/071,713, filed on May 1, Primary Examiner-Glenn E. Richman 1998, now abandoned, which is a continuation of application No. 08/887,240, filed on Jul. 2, 1997, now abandoned.
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