Modular pneumatic control systems
Patent 5178191 Issued on January 12, 1993. Estimated Expiration Date: 
November 15, 2011. 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.
November 15, 2011. 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 ReferencesInventorAssigneeApplicationNo. 795244 filed on 11/15/1991US Classes:137/884, Sectional block structure137/269CONVERTIBLEExaminersPrimary: Fox, John C.Attorney, Agent or FirmForeign Patent References
International ClassF16K 011/00AbstractA fluid module for a fluid control apparatus which has an internal fluid operated diaphragm which will permit the manifolding of several modules together. Each of the modules is of the same configuration and is interconnected to a common main fluid supply source. The modular units are plugged together using couplings with the main fluid source piped only to one device with an internal fluid passage delivering the fluid to all of the modular units. The modular units can be connected in a series or parallel combination with respect to signalling fluids. The modular units eliminate the cost of interconnecting different units at a variety of locations with different couplings as well as independently supplying each unit with a supply fluid. | |
