Subbase for a pneumatic control assembly for a pneumatic cylinder

Claim 1

A base means (12) for directing fluid from a control assembly (10) to a number of pneumatic cylinders each having a piston movable therein between first and second positions and a rod extending from the piston exteriorly of the cylinder including first and second cylinder ports therein for communication of fluid to and from opposite sides of the pistons for moving the pistons and rods between first and second positions, said base means (12) comprising; an upper support surface (28) for engaging and supporting the first phase (56) of a valve body means (14) and a lower support surface (30) oppositely disposed and spaced from said upper support surface (28), first and second base ports (38,40) disposed in said upper support surface (28) and extending completely through said base means (12) between said upper and lower support surfaces (28,30), first and second side walls (31,32) and first and second end walls (33,34) extending between said upper and lower support surfaces (28,30) to space said upper and lower support surfaces, first communication ports (35) disposed on at least one side of said side walls (31,32), second communication ports (36) disposed on at least one side of said end walls (33,34) side flow passages (44) extending from said first communication ports (35) in at least one of said side walls (31,32), for providing fluid communication between said first communication ports (35) and said first and second base ports (38,40), and flow passages (46) extending from said second communication ports (36) in one of said end walls (33,34) for providing fluid communication between said second communication ports (36) and said first and second base ports (38,40), either said first or second base ports (38,40) adaptable to provide a fluid communication with one of said second coupling ports (62) in a valve body (14) and a spool valve port (90) in a valve body (14), said first and second base ports (38,40) including threads (41) disposed interiorly of said ports (38,40) for alternately receiving a hollow threaded stud member (70) having threads (74) at the second end thereof and for providing threaded engagement with said stud member (70) and thereby clamping a valve body (14) to said base means (12), said first and second base ports (38,40) being identical and spaced from each other such that either base port (38,40) may receive said stud member (70) and provide fluid communication with one of said second coupling ports (62) and said spool valve port (90), said base means (12) for selectively delivering fluid from the pneumatic control assembly to at least one pneumatic cylinder and from the pneumatic cylinder to said pneumatic control assembly (12).