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Title: Vacuum flush water closet
Claims: What is claimed is: 1. A vacuum and gravity operated timer, comprising: (a) a housing, (b) a pair of vacuum flow control valves, (c) a double faced cam, (d) said double faced cam being mounted on a pivoted lever arm which has one end pivoted on said housing, (e) a pair of pivotally mounted carrier arms, each of said carrier arms being engagable with one of said pair of vacuum flow control valves for operating the same, each of said carrier arms having a cam follower means thereon engagable by one of the cam faces on said double faced cam means, and, (f) a vacuum operated piston operatively mounted in said housing and connected to said lever arm and movable from a lowered inoperative position by vacuum to a raised operative position to raise said double faced cam to a cycle starting position and then movable back to an inoperative position by gravity from said raised operative position to move said double faced cam downwardly and to pivot said carrier arms to operate said vacuum flow control valves. 2. A vacuum and gravity operated timer as defined in claim 1, wherein: (a) said timer includes a normally open start valve for delaying the operation of the timer if the vacuum is below a certain value and being movable to a closed position by said double faced cam when it is raised to said cycle starting position for allowing the timer to operate if the vacuum is above said certain value. Other info: Inventors: Gregory, Charles E. (Anchorville, MI, US) Brian, Michael (Orchard Lake, MI, US) Thomas, Jerald F. (Utica, MI, US) Cameron, James F. (Milford, MI, US) Application Number: 804234 Filing Date: 1977-06-06 Publication_date: 1979-03-20 Assignee: Jered Industries, Inc. (Birmingham, MI) Primary Class(es): 137/624.11 137/862 Other Classes: US Patent Ref:
Other Refs: Primary Examiner: Cohan, Alan Assistant Examiner: Attorney: Mentag; Robert G. |
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