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Class Information
Number: 194/319
Name: Check-actuated control mechanisms > Including means to test validity of check > By testing material composition > Having electric circuit influenced by check > Entering coil
Description: Apparatus including an inductive coil with a plurality of conductive turns, wherein the check passes into the turns.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7520374 |
Coin discrimination apparatus and method |
Apr. 21, 2009 |
| 7048108 |
Currency validation apparatus and method |
May. 23, 2006 |
| 6640955 |
Coin inspection method and device |
Nov. 4, 2003 |
| 6471030 |
Coin sensing apparatus and method |
Oct. 29, 2002 |
| 6227343 |
Dual coil coin identifier |
May. 8, 2001 |
| 6056105 |
Device and method for discriminating a circular plate body such as a coin |
May. 2, 2000 |
| 6039165 |
Methods for coin sorting, coin change mechanism, and public telephone operable therewith |
Mar. 21, 2000 |
| 5806651 |
Coin discrimination system |
Sep. 15, 1998 |
| 5575057 |
Method of manufacturing a coin detector |
Nov. 19, 1996 |
| 5568854 |
Coin discrimination method |
Oct. 29, 1996 |
| 5444526 |
System for identifying or validating top crowns to be used as a means for activating a circuit |
Aug. 22, 1995 |
| 5379876 |
Coin discrimination apparatus |
Jan. 10, 1995 |
| 5353906 |
Metal body discriminating apparatus |
Oct. 11, 1994 |
| 5351798 |
Coin discrimination apparatus and method |
Oct. 4, 1994 |
| 5273151 |
Resonant coil coin detection apparatus |
Dec. 28, 1993 |
| 5244070 |
Dual coil coin sensing apparatus |
Sep. 14, 1993 |
| 5199545 |
Metal body discriminating apparatus |
Apr. 6, 1993 |
| 5191957 |
Coin discrimination method |
Mar. 9, 1993 |
| 5180046 |
Coin discrimination apparatus |
Jan. 19, 1993 |
| 5176380 |
Method and apparatus for identifying winning and losing tokens used in promotions |
Jan. 5, 1993 |
| 5158166 |
Coin discrimination apparatus with compensation for external ambient conditions |
Oct. 27, 1992 |
| 5028870 |
Sensor system method and apparatus for discrimination of metallic objects based on a variation in self inductance |
Jul. 2, 1991 |
| 4895238 |
Coin discriminator for electronic parking meter |
Jan. 23, 1990 |
| 4754862 |
Metallic article discriminator |
Jul. 5, 1988 |
| 4705154 |
Coin selection apparatus |
Nov. 10, 1987 |
| 4696385 |
Electronic coin detection apparatus |
Sep. 29, 1987 |
| 4664245 |
Coin chute assembly |
May. 12, 1987 |
| 4662501 |
Coin checking |
May. 5, 1987 |
| 4574935 |
Coin checking method and apparatus employing wave train comparison |
Mar. 11, 1986 |
| 4488116 |
Inductive coin sensor for measuring more than one parameter of a moving coin |
Dec. 11, 1984 |
| 4448297 |
Ferromagnetic coin validator and method |
May. 15, 1984 |
| 4416364 |
Coin validating arrangement |
Nov. 22, 1983 |
| 4359148 |
Coin acceptor or rejector |
Nov. 16, 1982 |
| 4354587 |
Coin acceptor or rejector |
Oct. 19, 1982 |
| 4353453 |
Valid coin acceptor for coin actuated apparatus |
Oct. 12, 1982 |
| 4334604 |
Coin detecting apparatus for distinguishing genuine coins from slugs, spurious coins and the like |
Jun. 15, 1982 |
| 4326621 |
Coin detecting apparatus for distinguishing genuine coins from slugs, spurious coins and the like |
Apr. 27, 1982 |
| 4254857 |
Detection device |
Mar. 10, 1981 |
| 4206775 |
Coin sorting machine |
Jun. 10, 1980 |
| 4151904 |
Coin detection device |
May. 1, 1979 |
| 4124111 |
Coin inspecting apparatus |
Nov. 7, 1978 |
| 4105105 |
Method for checking coins and coin checking apparatus for the performance of the aforesaid method |
Aug. 8, 1978 |
| 3980168 |
Method and apparatus for authenticating and identifying coins |
Sep. 14, 1976 |
| 3962627 |
Electronic apparatus for testing moving coins employing successive time significant sensings of the effects of proximity of a coin under test to inductive impedance elements upon the effective |
Jun. 8, 1976 |
| 3956692 |
Metal object comparator utilizing a ramp having a V-shaped slot for mounting the object accurately within the test coil |
May. 11, 1976 |
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