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US 4,399,593 AGranted
Hose clamp with wedged lock
OwnerJoan De Bradandere, Freddy VanMeeneninventors
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OwnerJoan De Bradandere, Freddy VanMeeneninventors
Estimating the term…
The invention relates to a non-reusable hose-clip, intended to ensure for example the connection of two tubular members. The invention also relates to a tool for tightening the clip. The clip is composed of a band forming a loop comprising a free end (2). It is characterized by the fact that in the vicinity of the other end it comprises locking means (4) which are self-tightening due to wedging of the free end. These means are preferably constituted by a casing (8) of convergent shape and a wedge (17) of complementary shape. Possibly, spring means (24) restore the wedge to the locked position. Also, wedging may be reinforced by the engagement of complementary teeth. Also, in the vicinity of the terminal part of its free end (2), the clip according to the present invention comprises means facilitating calibrated tightening of the latter. According to one embodiment, these means comprise an aperture (7), possibly a flange (6) by which the swinging head of a pulling tool engages the band. According to another embodiment, these means comprise a calibrated deformation in the free end (2) which a pulling tool "rolls".
A non-reusable hose clamp comprising a metal band forming a loop and having first and second end portions, a casing in the form of an inverted U with a rectangular wall portion intermediate two trapezoidal side portions secured at their free edges to opposite side edges of said first end portion of said band with said wall portion disposed at an acute angle to the band, a wedge fitting in said casing, said wedge being of U-shaped cross section with a rectangular wall portion intermediate two triangular side portions, the angle of said side portions of said wedge being substantially the same as that of said side portions of said casing, and a spring attached to and connecting said wedge and said casing and urging said wedge inwardly in said casing, said second end portion of said band passing between said wedge and said first end portion of the band and being clamped by said wedge against said first end portion of said band.
Dependencies are inferred from the claim text.