Fluid handling – Combined
Patent
1982-05-21
1984-05-01
Chambers, A. Michael
Fluid handling
Combined
2511497, 285119, 285345, 339 35, F16L 3728
Patent
active
044455364
ABSTRACT:
There is disclosed a coupling for effecting pneumatic connection between a rack and a circuit board carrying both electrical and pneumatic control elements where concurrent connection is made of electric and pneumatic circuits as the circuit board is inserted in the rack. The coupling comprises a male unit with a wedge shaped insertion probe penetrated by a flow channel terminating in an interconnection port and a female unit with an opening for receiving the insertion probe of the male unit and an interconnection port mating across an interface surface with the male interconnection port. The female coupling unit further includes a shuttle with axial symmetry having an actuator shaft of a diameter to slide within the uniform bore portion of the tunnel at one end, a stop that cannot enter the uniform bore portion of the tunnel at the other end, two spaced apart seals of a diameter to make a sealing fit to the uniform bore portion of the tunnel positioned intermediately. The male coupling unit includes affixed thereto a projection positioned to engage the actuator shaft of the shuttle and as the coupling units are coupled press the shuttle against the biasing means in the proximal direction along the tunnel so that when the coupling units are fully coupled the shuttle is positioned with the proximal seal in the enlarged portion of the tunnel and the distal seal is positioned between the internal communicating channel and the proximal end of the tunnel.
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patent: 4408521 (1983-11-01), Schelli et al.
Boyd Sylvia L.
Chambers A. Michael
Linear Dynamics Inc.
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