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US 4,182,364 AGranted
Adjustable ball cock riser
AssigneeCoast Foundry & Mfg. Co.
InventorsRussell T. Gilbert, Armand E. Antunez, Jr.
Life of this patent
Estimating the term…
Abstract
An adjustable riser for a toilet tank is formed of a pair of mutually telescoped members slidably sealed to each other and readily locked in any one of a selected number of longitudinally adjusted positions by means of a number of tapered fingers having projections that are pressed into one of a series of grooves in the inner member by a threaded lock nut.
Claims14
An adjustable ball cock assembly for a toilet tank comprising,
- a valve,
- a fill pipe connected to said valve, and
- an adjustable length water supply riser connected to said valve, said riser comprising
- inner and outer mutually telescoped members slidably sealed to each other, one of said members being connected to said valve, and the other to said members being adapted to be connected to a tank, said inner member having a plurality of axially spaced circumferential grooves, said outer member having a plurality of axially extending resilient fingers, at least some of said fingers having inwardly directed projections, and
- means for locking said projections in a selected one of said grooves, at least one of said projections extending radially of its finger by a distance greater than the depth of at least one of said grooves to insure contact of the end of the projection with the bottom of the associated groove, said one projection being adapted to be pressed into said one groove to provide increased area of interengagement and increased resistance to relative rotation with said riser members.
2 more elements
An adjustable length ball cock riser assembly for a toilet tank comprising
- inner and outer mutually telescoped riser pipe members, said inner member having a plurality of axially spaced circumferentially extending grooves, said outer member having a plurality of axially extending circumferantially spaced fingers collectively forming a frusto-conical locking surface, at least some of said fingers having inwardly directed projections at free ends thereof, and a locking nut threadedly engaged with said outer member, said nut having an internal frusto-conical locking surface mating with said frusto-conical surface of said fingers whereby as said nut is threaded upon said outer member the frusto-conical surfaces of said nut and fingers are axially shifted relative to one another to forcibly press said fingers toward said inner member and to press and hold said projections in a selected one of said grooves, at least one of said projections extending radially of its finger by a distance greater than the depth of its groove to insure forced engagement of the end of said one projection with the bottom of an associated groove, said projections and grooves being formed with mutually cooperating tapered faces thereby providing increased areas of contact between said projections and grooves to provide increased resistance to relative rotation of said members.
Dependencies are inferred from the claim text.