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Class Information
Number: 185/38
Name: Motors: spring, weight, or animal powered > Spring > Escapement controlled
Description: Spring motors having escapement means for controlling the operation of such motors.










Patents under this class:

Patent Number Title Of Patent Date Issued
8607935 Guide systems for laminated spring assemblies Dec. 17, 2013
7673893 Spring-based mechanism for saving labor of a bicycle rider Mar. 9, 2010
6880677 Elastic energy storage device Apr. 19, 2005
6851533 Spring brake actuator Feb. 8, 2005
6523646 Spring driven apparatus Feb. 25, 2003
6488122 Apparatus for generating rotative force using spring Dec. 3, 2002
6431317 Rotary electric actuator with a mechanical spring return back-up Aug. 13, 2002
6301981 Escapement for a timekeeper Oct. 16, 2001
5931045 Mechanical motor and speed regulator with disconnectable escapement wheel Aug. 3, 1999
5522321 Dragster amusement ride with elastic cord propulsion Jun. 4, 1996
5456276 Contact lens cleaning apparatus Oct. 10, 1995
5163535 Timing mechanism Nov. 17, 1992
5083773 Lobe spring motor for child's swing Jan. 28, 1992
4881621 Spiral spring power source for toy Nov. 21, 1989
4832156 Spring motor May. 23, 1989
4715475 Two-speed drive mechanism for toys Dec. 29, 1987
4676122 Fail-safe mechanical drive for syringe Jun. 30, 1987
4602700 Fail-safe mechanical drive for syringe Jul. 29, 1986
4446750 Escapement device May. 8, 1984
4371058 Spring motor Feb. 1, 1983
4287964 Timer Sep. 8, 1981
4240525 Toy timing device with a slip-stick escapement-like mechanism Dec. 23, 1980
4192197 Disengageable transmission device Mar. 11, 1980
4165872 Motor operated swings Aug. 28, 1979
4112832 Rotisserie and clockwork motor therefor Sep. 12, 1978
4062245 Motion restraining device Dec. 13, 1977











 
 
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