Drain
OwnerNorman Usherinventor
Life of this patent
Estimating the term…
Abstract
A grid drain for use on a sink to prevent large objects from entering the drain. The drain includes a tube (12) and a cover (20) that attaches to the top of the tube. The cover has a flat middle (72) and has a peripheral portion (74) that is curved to form a dome, with two circles of holes (46, 52).
Claims5
A drain that allows water to pass through while blocking large pieces of solid material, said drain including a tube (12) with a vertical axis (14) and a tube top forming a support surface (24), said drain including a cover (20) that covers said tube top and that has a plurality of drain holes, wherein:
- said cover is dome-shaped, with a cover periphery (30) that lies on said tube support surface, and with a cover top (70) lying along said vertical axis, said cover having a ring of inner holes (50) spaced about said axis and said cover has a ring of outer holes (44) spaced about said axis and lying further from said axis than said inner holes;
- each of said inner holes has a primarily vertical hole axis (92) and each of said outer holes has a center with an outer hole axis (94) angled between 15° and 75° to said tube vertical axis.
A drain that allows water to pass through while blocking solid material, said drain including a tube with a vertical axis and an open top, and a cover that covers said open top and that has a plurality of holes, wherein:
- said cover is dome-shaped, with a cover periphery (30) that lies on said tube top, with a cover upper part (70) having an inner circle of holes (40), and with a cover peripheral portion (70) having an outer circle of holes (46);
- said holes of said outer circle of holes having vertical axis (92) and said holes of said lower circle of holes have axes angled between 15° and 75° from the vertical.
Dependencies are inferred from the claim text.