The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 1984
Filed:
May. 21, 1982
John G Willis, Chelmsford, MA (US);
Linear Dynamics, Inc., East Pepperell, MA (US);
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.