Abstract: A roll of stretched plastic film having an embossed surface for trapping air so as to facilitate unwinding of the roll of stretched film, stretched between 50 and 300 percent of the original length of the film, for wrapping pallet loads and particularly includes a folded edge for strengthening the edge, which folded edge is applied in a manner so as to minimize piling up of the rolled folded edge.
Type:
Grant
Filed:
June 3, 1994
Date of Patent:
July 2, 1996
Inventors:
Donald J. Salzsauler, Richard J. Salzsauler
Abstract: A tripod joint has an outer joint part with an annular housing (1) and roller track elements forming roller tracks, and an inner joint part with a tripod member (6) including rollers (5). The rollers (5) are guided on roller tracks (4) in the roller track elements (2). The roller track elements (2) include longitudinal edges (3) facing an inner face (10) of the tripod housing (1). At the end faces of their longitudinal edges (3), the roller track elements (2) are non-releasably connected to the annular housing (1). The substantially cylindrical tripod housing (1), at one end face, has a housing aperture whereas at the opposite end, it is connected to a shaft journal.