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A & A Mfg. Co., Inc. Patents
A & A Mfg. Co., Inc.
New Berlin, WI
No. of patents:

Patent Number Title Of Patent Date Issued
7341092 Way cover improvements March 11, 2008
A way cover section is shaped with a continuous lateral arc by pre-stressing so that its top panel has a radius in its top panel from one side panel of the cover section to the other. A wiper at the leading edge of the cover sections that may also serve as a bumper. The wiper has an
7297392 Bellows with molded panels November 20, 2007
A multi-sided bellows cover has panel sections formed of extruded plastic panels that are connected end-to-end by bead-in-slot connections. The panel sections can be made of one or more rigid wall sections that are connected at the fold lines by flexible web sections or by the bead-i
6446397 Telescoping cover bumper September 10, 2002
A dog-bone shaped bumper for a telescoping way cover extends on both sides of the rear flange of the cover and defines spaces which close upon flexing of forked ends of the bumper between the rear flange and the next adjacent cover section to reduce the impact between sections when e

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