Vacuum control valve

Claim 2

A vacuum control valve comprising: a valve body having at least a vacuum inlet and a vacuum outlet leading therein, a generally flat surface having openings extending therein, said inlet communicating with one of said openings and said outlet communicating with the other opening; a diverter track mounted for relative rotation with respect to said flat surface and having an end plate abutting said flat surface, said plate having two channelled diverter passageways formed therein, at least one passageway communicating with at least one of said openings, means for pressuring one of said passageways at a first pressure and the other at a second pressure in one position of said valve, each channelled diverter passageway further defined by contiguous circumferentially extending and radially extending bead surfaces, said circumferentially extending bead surfaces defining inner and outer edges of said passageways and said radially extending bead surfaces defining end edges of said passageways, and one of said passageway end edges further defined by first and second radially extending substantially parallel bead surfaces contiguous along their entire length and forming a double bead extending between said circumferential bead surfaces.

Claim 3

The vacuum control valve of claim 1 further including a plurality of vacuum inlets and outlets, a plurality of openings, each inlet and outlet communicating with a particular opening and a plurality of channelled passageways, including a first closed passageway at source vacuum, a second closed passageway at modulated vacuum and a third opened passageway at atmosphere, means for rotating said diverter plate relative said valve body to move selective passageways from communication with one opening to another, and said first and second radial bead surfaces positioned at each passageway end which is adapted to traverse an opening during actuation of said rotating means.

Claim 4

The vacuum control valve of claim 2 wherein each bead surface has a cross-sectional configuration defined by sidewalls tapering inwardly from the base thereof and a curvilinear surface at the top thereof blending into said sidewalls.

Claim 5

The vacuum control valve of claim 3 wherein each pair of first and second radial bead surfaces have a predetermined width between axially extending centerlines of constant arcuate dimension.

Claim 6

The vacuum control valve of claim 4 wherein said openings are cored in said valve body.

Claim 7

The vacuum control valve of claim 4 wherein certain channelled passageways have a discontinuous, third radially extending bead surface.

Claim 8

A control valve for porting pressure to pressure controlled accessories and controlling electric current flow to operate devices functionally associated with said accessories, said control valve comprising: a valve body having a generally flat surface and a plurality of openings extending therethrough, a vacuum inlet communicating with one of said openings and at least two vacuum outlets communicating with other particular openings; a diverter track having an end plate abutting said generally flat surface, said plate having at least two channelled diverter passageways communicating with said openings; spring means biasing said flat face of said valve body and said end plate of said diverter track member together; actuating means to rotate said diverter track relative said flat surface to port at least one opening from one passageway to the other; switch assembly means carried on said valve body for controlling said current, said switch means including different length contact arms; and cam means on the side of said diverter track opposite said end plate for sequentially engaging said contact arms to actuate said switch means as said diverter track rotates relative said body and further including a raised, circumferentially extending generally flat face surface extEnding radially over a portion of said diverter track and radially extending end surfaces tapering downwardly to the top surface of said diverter track, said generally flat circumferentially extending surface having a circumferentially extending recess therein extending radially from the outer periphery of said diverter track to a point intermediate the radial length of said circumferentially extending surface, and said different length contact arms include a first contact arm extending over said circumferentially extending flat surface over its radially inner portion and a second shorter length contact arm extending over said circumferentially extending flat surface at its outer peripheral portion.

Claim 9

A control valve for porting pressure to pressure controlled accessories and controlling electric current flow to operate devices functionally associated with said accessories, said control valve comprising: a valve body having a generally flat surface and a plurality of openings extending therethrough, a vacuum inlet communicating with one of said openings and at least two vacuum outlets communicating with other particular openings; a diverter track having an end plate abutting said generally flat surface, said plate having at least two channelled diverter passageways communicating with said openings; spring means biasing said flat face of said valve body and said end plate of said diverter track member together; actuating means to rotate said diverter track relative said flat surface to port at least one opening from one passageway to the other; switch assembly means carried on said valve body for controlling said current, said switch means including different length contact arms; and cam means on the side of said diverter track opposite said end plate for sequentially engaging said contact arms to actuate said switch means as said diverter track rotates relative said body and further including a raised, circumferentially extending generally flat face surface extEnding radially over a portion of said diverter track and radially extending end surfaces tapering downwardly to the top surface of said diverter track, said generally flat circumferentially extending surface having a circumferentially extending recess therein extending radially from the outer periphery of said diverter track to a point intermediate the radial length of said circumferentially extending surface, and said different length contact arms include a first contact arm extending over said circumferentially extending flat surface over its radially inner portion and a second shorter length contact arm extending over said circumferentially extending flat surface at its outer peripheral portion.

Claim 10

The control valve of claim 7, wherein said actuating means includes a protuberance extending outwardly from said diverter track and having a slotted opening therein, a detent, rotatable ring member having an actuating post thereon, said post extending within said slot and having a predetermined clearance therebetween, selective channelled diverter passageways having certain portions of their peripheries defined by first and second, adjacent bead surfaces, and sealing means preventing loss of pressure in said passageways when said valve is operated, said sealing means including the distance between centers of said first and second bead surfaces and said clearance between said slot and post.

Claim 11

The control valve of claim 8, wherein said valve body has a bottom surface, a central opening extending through said body between said generally flat and bottom surfaces, a bossed surface depending from said bottom surface and encircling said central opening, a first, second, and third plurality of detent teeth circumferentially spaced about said bossed surface, each plurality comprising a number of detent teeth which is one greater than the number of operating positions of said valve, said diverter track having a central opening extending therethrough, said ring member having a second actuating post extending through said central openings of said body and said diverter track, and an underside surface about said second actuating post, said underside surface having a detent tooth extending therefrom for each plurality of detent teeth on said bossed surface.

Claim 12

The control valve of claim 9, wherein said diverter track has first annular rib depending from its bottom surface, and a second annular rib extending from its top surface, said first and second ribs spaced from said central opening in said diverter track, said generally flat surface of said valve body having an annular groove formed therein, said groove spaced from said central opening in said body and receiving said annular first annular rib whereby said diverter track is guided in its rotation relative said flat surface of said valve body, and said spring means including a telescoping spring within said second rib, a washer secured to the top of said post, said spring being precompressed between said washer and said top surface of said diverter track.