Back to results
US 7,225,508 B2Granted
Shut apparatus
AssigneesChing-Yu Chou, Shiu-Yin Cheng
InventorChao-Mu Chou
Life of this patent
Estimating the term…
Abstract
An elongated shut apparatus includes a primary plate and a follower plate with the inner sides thereof facing to each other. Both the primary and the follower plate are made of soft high molecular material and have a concave shaped cross section with a thick central part getting thinner toward two lateral ends thereof.
Claims10
An elongated shut apparatus comprising:
- a) a primary plate having a crescent shaped cross section defined by two tapered primary lateral ends on either side of a thicker primary middle section, the primary plate having interior and exterior surfaces tapering to opposed ends;
- and
- b) a follower plate having a crescent shaped cross section defined by two tapered follower lateral ends on either side of a thicker follower middle section, the follower plate having interior and exterior surfaces tapering to opposed ends, wherein the interior surface of the primary plate faces the interior surface of the follower plate,
- wherein the primary plate has a first engaging element extending along a center of the interior surface thereof and the follower plate has a second engaging element extending along a center of the interior surface thereof, the first engaging element engaging the second engaging element.
1 more element
Dependencies are inferred from the claim text.