Spx Corporation

Kent-Moore Corporation

David L DeMartelaere

Craig B Lindquist

A quick disconnect coupling for unthreaded refrigerant fittings comprising an outer housing, an inner housing over which the outer housing is telescoped and a spring loaded plunger mounted for sliding movement within the inner housing. The inner housing has a circumferential portion at one end that is adapted to telescope over a valve fitting on a refrigeration system which has an annular groove and a one way valve normally closing the fitting. The plunger is normally out of engagement with the one way valve when the coupling is first placed in position on the fitment. Interengaging portions between the outer housing and inner housing operate upon rotation of the inner housing relative to the outer housing to move the outer housing axially relative to the inner housing causing a ramp portion thereon to engage balls on the inner housing and move the balls radially into the groove in the fitting. Further rotation of the inner housing relative to the outer housing causes the outer housing to move axially a further distance to permit the spring loaded plunger to move axially toward the one way valve in the fitting and open the one way valve as well as move the seat in the outer housing away from the plunger and provide communication to the exterior at the other end of the outer housing.

Quick disconnect couplings unthreaded refrigerant fitments

Apparatus for precision tensioning of threaded fasteners and the like comprising a drive head having a shaft for applying turning torque to a threaded fastener, a strain gage mounted on the drive shaft for providing a torque signal as a function of torque applied to the fastener, and an optical encoder for providing an angle signal as a function of angle of rotation of the fastener. An electronics package includes a microprocessor-based controller, an alphanumeric display for displaying either torque or angle as well as additional operating mode information, and a membrane switch panel for operator selection of angle-monitoring mode, torque-monitoring mode, measurement or setup operating modes, torque display in Newton-meters or foot-pounds, and for programming desired torque and/or angle thresholds into the control microprocessor.

Growing community of inventors

Romeo, MI, United States of America

David L DeMartelaere