Implements or apparatus for applying pushing or pulling force – Portable implements or apparatus for tensioning flexible... – Including rotatably driven drum for engaging either material...
Reexamination Certificate
2009-08-18
2010-12-07
Langdon, Evan H (Department: 3654)
Implements or apparatus for applying pushing or pulling force
Portable implements or apparatus for tensioning flexible...
Including rotatably driven drum for engaging either material...
C254S223000, C254S237000, C254S239000, C024S0690CT, C024S0680CD
Reexamination Certificate
active
07845621
ABSTRACT:
A tightener for a binding strap is disclosed. A base is penetrated with a rotating axle with a ratchet installed on its one end. A tooth limits the ratchet to move in a single direction. A driving element is mounted on the rotating axle. A ratchet tooth engages with the ratchet for the driving element to drive the ratchet. The driving element has a cam part and a blocking part.
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Langdon Evan H
Wang Li K.
Wang Law Firm, Inc.
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