US PATENT SUBCLASS 4 / 684
.~.~.~.~ Pop-up drain valve

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

679  DF  DRAIN, OVERFLOW OR TRAP FOR A SINK OR BATH {3}
680  DF  .~ Drain and overflow {2}
682  DF  .~.~ With valve {3}
683  DF  .~.~.~ Ell having fluid communication with the drain and overflow openings of a sink or bath {1}
684.~.~.~.~ Pop-up drain valve {1}
685  DF  .~.~.~.~.~> Contacted by a rotating member

DEFINITION

Classification: 4/684

Pop-up drain valve:

(under subclass 683) Subject matter wherein the apparatus has a seat in the drain opening of the horizontal branch and, a plug with movement perpendicular to the seat, axial to the seat, shiftable off the seat towards the the interior of the sink or bath to open and onto the seat to close to control the flow of fluid.

(1) Note. A plug fills the gap in a drain opening.