초록 ▼

An apparatus for mixing and dispensing multiple fluids utilizes two fluid reservoirs each in fluid communication with a respective pump for pumping the fluids to a mixing head, the pumps being mechanically connected to each other and adapted to pump fluids from the reservoirs at a predetermined volu

An apparatus for mixing and dispensing multiple fluids utilizes two fluid reservoirs each in fluid communication with a respective pump for pumping the fluids to a mixing head, the pumps being mechanically connected to each other and adapted to pump fluids from the reservoirs at a predetermined volume ratio, and with a pressure switch provided for measuring fluid pressure to the mixing head and stopping the pumping of fluid at a predetermined maximum pressure while starting the pumping of fluid when the fluid pressure falls below the predetermined maximum pressure. A device for detecting an empty fluid reservoir is used to stop the pumping of fluids to avoid single component pumping. A mechanical torque-releasable coupling is used to disconnect a pump from the pump drive in the event of an internal pump overload.

대표청구항 ▼

An apparatus for mixing and dispensing a fluid comprising a first fluid reservoir, a second fluid reservoir, a first fluid pump having an inlet port and an outlet port, said inlet port in fluid communication with said first reservoir, a second fluid pump having an inlet port and an outlet port, said

An apparatus for mixing and dispensing a fluid comprising a first fluid reservoir, a second fluid reservoir, a first fluid pump having an inlet port and an outlet port, said inlet port in fluid communication with said first reservoir, a second fluid pump having an inlet port and an outlet port, said inlet port in fluid communication with said second reservoir, means for driving said first and second pumps at a respective speed inversely proportional to the respective viscosity of said fluid being pumped and at a predetermined ratio of fluid flow, said fluids being generally at atmospheric pressure at the inlet port of said first and second pumps, a power source electrically connected to said means for driving said first and second pumps, a mixing head, means for fluidly communicating said mixing head with said outlet port of said first pump, means for fluidly communicating said mixing head with said outlet port of said second pump, means for measuring fluid pressure of said fluid between said first pump and said mixing head, means for electrically disconnecting said means for driving said first and second pumps when said fluid pressure exceeds a predetermined pressure and electrically connecting said power source to said means for driving said fist and second pumps when said pressure is less than said predetermined pressure.