Float valve assembly

Claim 2

A float valve assembly for a stock water tank and the like comprising: a. a valve body Having an inlet section for connection with a source of water under pressure, b. a valve seat in said inlet section, c. a valve plunger movably supported in said valve body for axial movement into and out of a seated position with said valve seat, d. a first lever member pivoted at one end on said valve body to one side of said valve plunger for pivotal movement about an axis normal to the axis of said valve plunger from a first position extended transversely across and in contact engagement with said valve plunger to a second position out of the path of axial movement of said valve plunger, e. a second lever member pivoted at one end on said valve body to the opposite side of said valve plunger for pivotal movement about an axis parallel to the axis of said first lever member, said one end of the second lever member being in overlying contact engagement with the free end of said first lever member, when the first lever member is in the first position therefor, f. a float member connected to the free end of the second lever member, and g. a removable stop member on said valve body engageable with the first lever member to limit the open position of said valve plunger relative to said valve seat, said first lever member on removal of said stop member being movable to the second position therefor to provide for the removal of the valve plunger from the valve body.

Claim 3

A float valve assembly for a water tank comprising: a. a valve body member having an inlet section for connection with a source of water under pressure and an outlet section open to said inlet section, b. a valve unit for opening and closing said inlet section including a valve seat in the inlet section, and a valve plunger slidably mounted in said valve body member for movement into and out of a seated relation with said valve seat, p1 c. a pair of coacting lever members pivoted on said valve body member at opposite sides of said valve plunger for relative pivotal movement in a common plane about axes normal to the path of movement of said valve plunger, with one of said lever members extended into said path of movement for engagement with the end of the valve plunger remote from said valve seat, said lever members having the adjacent end sections thereof in an overlapped relation with the other of said lever members overlying said one lever member, d. said lever members pivotally movable to first positions to hold said valve plunger in seated engagement with said valve seat to close said valve unit; to second positions wherein said valve plunger is unseated from said valve seat; and to third positions wherein said lever members are out of the path of movement of said valve plunger, e. a float arm assembly connected to the other of said lever members; f. a removable stop portion on said valve body engageable with said one lever member to define the second positions of said lever members, said lever members on removal of said stop portion, being movable to the third positions therefor wherein said valve plunger is removable from the valve body member.

Claim 4

A float valve assembly for a water tank comprising: a. a valve body member having an inlet section for connection with a source of water under pressure and an outlet section open to said inlet section, b. a valve unit for opening and closing said inlet section including a valve seat in the inlet section, and a valve plunger slidably mounted in said valve body member for movement into and out of a seated relation with said valve seat, p1 c. a pair of coacting lever members pivoted on said valve body member at opposite sides of said valve plunger for relative pivotal movement in a common plane about axes normal to the path of movement of said valve plunger, with one of said lever members extended into said path of movement for engagement with the end of the valve plunger remote from said valve seat, said lever members having the adjacent end sections thereof in an overlapped relation with the other of said lever members overlying said one lever member, d. said lever members pivotally movable to first positions to hold said valve plunger in seated engagement with said valve seat to close said valve unit; to second positions wherein said valve plunger is unseated from said valve seat; and to third positions wherein said lever members are out of the path of movement of said valve plunger, e. a float arm assembly connected to the other of said lever members; f. a removable stop portion on said valve body engageable with said one lever member to define the second positions of said lever members, said lever members on removal of said stop portion, being movable to the third positions therefor wherein said valve plunger is removable from the valve body member.

Claim 5

The float valve assembly according to claim 2, including: a. a housing member for said one lever member having a wall portion arranged in a plane normal to the axis of said valve plunger, said wall portion having a section constituting said stop position, and b. means movably supporting said housing on said valve body member for movement into and out of a covering relation with said one lever member.

Claim 6

The float valve assembly according to claim 2, wherein: a. said one lever member is of a length such that the adjacent end section thereof terminates adjacent the pivotal axis for said other lever member.

Claim 7

The float valve assembly according to claim 2, wherein: a. said valve plunger includes a disc shape resilient member in the end thereof facing said valve seat for seating engagement with said valve seat, and b. said last mentioned end of the valve plunger hAs a cavity of a size and shape to frictionally receive said resilient member therein.

Claim 8

The float valve assembly according to claim 2, wherein: a. said valve seat is of a cylindrical tubular shape having a threaded outer peripheral surface, and b. said inlet section has a threaded bore portion to threadably receive said valve seat therein; c. said valve seat having a bore of a polygonal shape in transverse cross section.