Abstract: A method of manipulating a quick connect/disconnect system includes connecting a first coupling portion of a first connecting member to a fluid conductor and inserting a second coupling portion of the first connecting member within a third coupling portion of a second connecting member. The method further includes inserting the third coupling portion within a ring assembly which is rotatably coupled to the first coupling portion and engaging a mating feature on an external surface of the third coupling portion with a mating feature on an internal surface of the ring assembly. The method also includes rotating the ring assembly about the third coupling portion while the first mating portion is engaged with the second mating portion; and forcing the second coupling portion to move further within the third coupling portion by rotation of the ring assembly.

Abstract: An air hose includes a corrugated flexible hose. The air hose also includes a first hose end section mechanically coupled to the corrugated flexible hose. The first hose end section includes a pressure sensor communicatively coupled to a warming unit. The first hose end section is configured to releasably couple to a pneumatic convective device. The air hose also includes a second hose end section mechanically coupled to the corrugated flexible hose. The second hose end section is configured to couple to the warming unit.

Abstract: Two slab bolster elements having rails supported on legs for carrying rebar during casting are connected end to end by a blade for sliding longitudinally of the rail into a female receptacle and a releasable locking mechanism which acts to lock the blade in the female receptacle. The locking mechanism comprises a notch on one side surface of the blade and a projecting portion of the female receptacle engaged into the notch. The projecting portion is carried on the female receptacle by a portion which can flex to cause the projecting portion to move away from the side surface of the blade. The female receptacle includes a manually depressible member on a side of the female receptacle opposite the projecting portion which when depressed provides motion toward the female receptacle which causes the projecting portion to move out of the notch.