Pneumatic logic circuit
Patent 4245673 Issued on January 20, 1981. Estimated Expiration Date: 
February 26, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 26, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References3875959 InventorsAssigneeApplicationNo. 06/015071 filed on 02/26/1979US Classes:137/884, Sectional block structure137/624.14, Self-cycling137/885With fluid actuatorExaminersPrimary: Michalsky, Gerald A.Attorney, Agent or FirmInternational ClassesF15C 3/00 (20060101)F15C 4/00 (20060101) F15C 3/04 (20060101) G05B 19/00 (20060101) G05B 19/44 (20060101) Foreign Application Priority Data1978-03-01 FRAbstractA sequencing logic circuit comprises a blocking means for preventing phase jumps caused by the untimely presence of a release signal. An inhibitor device is placed on one of the channels feeding a storage relay, placed upstream of said release signal, in such a manner as to prevent the transmission thereto of a pressure for placing it in logic state "1." This inhibitor device is actuated by the release signal and does not permit any communication between the latter and the channel controlled. | |
