Expanded – threaded – driven – headed – tool-deformed – or locked-thr – With means to indicate application of predetermined... – Axially deformable member or portion
Patent
1996-12-19
1999-07-27
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
With means to indicate application of predetermined...
Axially deformable member or portion
411 14, 280513, F16B 3102, B60D 1173
Patent
active
059279184
ABSTRACT:
A method and apparatus for mounting a trailer ball to a mounting platform. The apparatus includes a trailer ball having a threaded stem, a flat washer, and a nut having a plastic collar. The plastic collar includes a ring which is disposed between the nut and flat washer. The ring is formed of a plastic material which is extruded when the nut is tightened sufficiently to provide a positive indication that sufficient tension has been placed on the joint. The method also includes lubricating the stem before threading the nut onto the stem and removing the extruded ring after tightening.
REFERENCES:
patent: 2377368 (1945-06-01), Polstra
patent: 4008906 (1977-02-01), Schafer et al.
patent: 5188494 (1993-02-01), Hatin
patent: 5205666 (1993-04-01), Hollis
Document 25455N, Injection Molding Resins, DOW HDPE, High Density Polyethylene Resin, Dow Plastics.
Product Description, MacDermid MACuGuard, Torque'n Tension Control Fluid, Produce Code No. 17130, MacDermid, Incorporated.
Smart Nut Installation Instructions, Valley Ind., Sep. 27, 1993.
Valley Industries
Wilson Neill R.
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