Dispenser device with valve piston pump
Patent 4236651 Issued on December 2, 1980. Estimated Expiration Date: 
August 17, 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.
August 17, 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 ReferencesInventorsApplicationNo. 06/067288 filed on 08/17/1979US Classes:222/82, With discharge assistant222/321.6, Aligned discharge assistant, actuator, container and nozzle222/325, Insertable cartridge or removable container222/83.5, With sleeve or rest for container cut401/135, Implement includes vent, flow-regulator or force-applying means401/178, Including flow-regulator through piston401/270With flow-regulatorExaminersPrimary: Spar, Robert J.Assistant: Silverberg, Fred A. Attorney, Agent or FirmInternational ClassesA46B 11/00 (20060101)B05B 11/00 (20060101) F04B 53/12 (20060101) F04B 7/00 (20060101) F04B 53/10 (20060101) Foreign Application Priority Data1976-06-08 CHAbstractA dispenser device comprising a reservoir for a flowable or fluent filled material as well as a piston pump equipped with a valve arrangement. The valve arrangement is coaxially dispositioned with regard to the pump and possesses parts connected with the piston and parts connected with the cylinder of the piston pump.Field of SearchWith discharge assistantWith sleeve or rest for container cut With sleeve or rest for container cut Insertable cartridge or removable container For reciprocating piston on follower-type impeller Biasing means within material chamber or passage Inlet trap (e.g., sump) Aligned discharge assistant, actuator, container and nozzle Pump or pulsator casing within supply container Pressure lock trap chamber With interior material guide or restrictor | |
