Control element for the pneumatic establishment of logical connections

Claim 2

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each other can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection including a center tap and two branch taps; the improvement comprising said center tap being positioned to apply pressure to annular surfaces of said diaphragms spaced radially from the centers of said diaphragms; said branches being positioned to apply pressure to the inner surfaces of said diaphragms substantially centrally thereof and being opened or closed in accordance with the respective switching position of said diaphragms.

Claim 3

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each other can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; a housing formed with connection channels of said three-way branch connections; all said connection channels opening through the same single surface of said housing and having exterior openings arranged on said same single surface at diagonally opposite intersections of a square grid network defined, at least in part, by said exterior openings.

Claim 4

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each other can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; a housing formed with connection channels of said three-way branch connections; all said connection channels opening through the same single surface of said housing and having exterior openings arranged on said same single surface at diagonally opposite intersections of a square grid network defined, at least in part, by said exterior openings.

Claim 5

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each other can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; a housing formed with connection channels of said three-way branch connection; all said connection channels opening through the same single surface of said housing; the exterior openings of said connection channels being arranged on said same single surface of said housing at diagonally opposite intersections of the square grid network; and a housing mounting portion at the center of said grid network.

Claim 6

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each other can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; a housing formed with connection channels of said three-way branch connection; all said connection channels opening through the same single surface of said housing; the exterior openings of said connection channels being arranged on said same single surface of said housing at diagonally opposite intersections of the square grid network; and a housing mounting portion at the center of said grid network.

Claim 7

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each other can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; and at least two symmetrically positioned crossbars interconnecting said diaphragms and arranged eccentrically to the gravity line of said diaphragms.

Claim 8

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each other can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; and at least two symmetrically positioned crossbars interconnecting said diaphragms and arranged eccentrically to the gravity line of said diaphragms.

Claim 9

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each othEr can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; a substantially square cross section housing; a pair of covers secured to opposite sidewalls of said housing and each forming part of a diaphragm chamber for a respective diaphragm; each cover having formed therein a connecting channel extending perpendicularly to the direction of motion of said mutually interconnected diaphragms and communicating with the respective diaphragm chamber part; those surfaces of said housing having said covers secured thereto being formed with recesses corresponding with the covers and complementing said diaphragm chambers; each of said recess having a centrally arranged, nozzle-shaped opening connected to a respective one of two connecting channels in said housing; each recess having formed eccentrically therein at least one respective end opening of at least one respective bore interconnecting said diaphragm chambers; a third connecting channel formed in said housing and communicating with at least one of said bores; and at least one crossbar interconnecting said diaphragms and disposed in a bore; all of said connecting channels extending in the same direction to the exterior of said housing.

Claim 10

In a control element for the pneumatic establishment of logical connections, of the type including two coaxially arranged mutually interconnected diaphragms, whose surfaces facing toward each other as well as whose surfaces facing away from each othEr can be subjected to a pressure medium, with the diaphragm surfaces facing toward each other being alternately acting switching elements of a three-way branch connection: the improvement comprising the corresponding surfaces of each of the diaphragms subjected to pressure medium being substantially equal in area; a substantially square cross section housing; a pair of covers secured to opposite sidewalls of said housing and each forming part of a diaphragm chamber for a respective diaphragm; each cover having formed therein a connecting channel extending perpendicularly to the direction of motion of said mutually interconnected diaphragms and communicating with the respective diaphragm chamber part; those surfaces of said housing having said covers secured thereto being formed with recesses corresponding with the covers and complementing said diaphragm chambers; each of said recess having a centrally arranged, nozzle-shaped opening connected to a respective one of two connecting channels in said housing; each recess having formed eccentrically therein at least one respective end opening of at least one respective bore interconnecting said diaphragm chambers; a third connecting channel formed in said housing and communicating with at least one of said bores; and at least one crossbar interconnecting said diaphragms and disposed in a bore; all of said connecting channels extending in the same direction to the exterior of said housing.