U.S. patent number 3,575,341 [Application Number 04/663,887] was granted by the patent office on 1971-04-20 for ratchet driving mechansim. This patent grant is currently assigned to Guaranteed Financial Services, Inc.. Invention is credited to Stephen C. Tarver.
United States Patent | 3,575,341 |
Tarver | April 20, 1971 |
A mechanism for converting intermittent electrical current into a driving force to produce rotary mechanical motion in accurately controlled amounts, thus making it possible to turn an attached wheel the desired fraction of a single revolution by controlling the number of pulses of electric voltages applied to the device. This is accomplished by using a spring-driven pawl to drive a ratchet wheel and an electromagnetic means of retracting the pawl so that the number of retractions is dependent on the number of pulses of electric voltage applied across the solenoid of the retracting electromagnet.
Inventors: | Tarver; Stephen C. (Gillette, WY) |
---|---|
Assignee: | Guaranteed Financial Services,
Inc. (N/A) |
Family ID: | 24663640 |
Appl. No.: | 04/663,887 |
Filed: | August 28, 1967 |
Current U.S. Class: | 235/91M; 310/37 |
Current CPC Class: | G06M 1/104 (20130101); G06M 1/042 (20130101) |
Current International Class: | G06M 1/10 (20060101); G06M 1/04 (20060101); G06M 1/00 (20060101); G60m 001/00 () |
Field of Search: | ;235/60 (M.T.)/ ;235/92 (P.R.)/ ;235/58 (Print)/ ;235/145,91,1.3 ;74/575,576,577 (S)/ ;74/578 ;235/131 ;310/37 |
2550950 | May 1951 | Young |
3357637 | December 1967 | Stautmeister |
926318 | June 1909 | Crandall |
985042 | February 1911 | Lotterhand |
1240256 | September 1917 | Quentell |
1262727 | April 1918 | Williams |
1420311 | June 1922 | Gorden |
3318522 | May 1967 | Heyes |
3338514 | August 1967 | Weinreich |
3340383 | September 1967 | Flocks |
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