Buckles – buttons – clasps – etc. – Bale and package ties – hose clamps – With tighteners
Patent
1977-01-05
1977-12-20
Gelak, Bernard A.
Buckles, buttons, clasps, etc.
Bale and package ties, hose clamps
With tighteners
24279, F16L 3310
Patent
active
040633365
ABSTRACT:
A clamp for heavy-duty use such as in clamping the telescoped tubing parts of exhaust systems of internal combustion engines. The clamp comprises a saddle portion including an arcuate pressure-applying edge adapted to engage the tubing and a conventional U-bolt that is adapted to engage the tubing diametrically opposite the pressure-applying edge of the saddle.
The clamp saddle is made up of two very similar sheet metal members that are stamped in a suitable die or dies. Each member has a pair of spaced apart semicylindrical grooves formed therein, one along each opposite end of the member, there being an integral flange extending beyond each groove. One flange is wider than the other. Two of these sheet metal members are engaged face to face and the wider flanges bent over in reversed engagement upon the narrower flange of its opposite member. One of the engaged members has a tab integral with its upper edge that is also bent over into the upper edge of the other member in reversed engagement. A strengthening rib is provided in each sheet metal member parallel to its top edge.
When assembled with the flanges and tab bent as described, the sheet metal members mate to provide a compact unitary assembled saddle having parallel passageways ways for the arms of the U-bolt. The joined assembly is robust and the two side by side arcuate edges combine to provide a stiff relatively sharp pressure-applying instrumentality that engages the tubing upon which the clamp is installed. The upper ends of the U-bolt arms are threaded as conventionally for the reception of nuts which engage the upper ends of the tubular parallel passageways. Taking up on the nuts draws the bight of the U-bolt and the pressure-applying arcuate edge of the saddle together. The pressure applied is normally sufficient to crimp and crush the tubing thereby resulting in a substantially emission-free joint.
REFERENCES:
patent: RE28912 (1976-07-01), Stade
patent: 2959834 (1960-11-01), Graham
patent: 3772745 (1973-11-01), Dowling
patent: 3879815 (1975-04-01), Dowling
patent: 3955250 (1976-05-01), Heckethorn
Jones W. Richard
Kraig Harry J.
Gelak Bernard A.
Mercury Metal Products
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