B - Operations – Transporting – 61 – D
Patent
B - Operations, Transporting
61
D
105/184
B61D 39/00 (2006.01) B61D 17/16 (2006.01)
Patent
CA 1211990
ABSTRACT OF THE DISCLOSURE A holddown bar for a hatch cover of a railway car or the like and a method of making the same are provided herein. The holddown bar has opposed ends, one of which has a hinge unit that is adapted to be pivotally mounted to the car, and the other of which has a latch unit that is adapted to be realizably latched to the car. A medial portion thereof in- termediate the opposed ends is adapted to extend across the hatch cover and carries a sealing gasket in a channel thereof that is adapted to engage against the hatch cover. The opposed ends and medial portion of the hold- down bar comprise a one-piece member formed of a relatively rigid poly- meric material and has a reinforcing unit therein. The reinforcing unit comprises a substantially rigid member disposed in the polymeric material and having opposed ends, one of which comprises the hinge unit for the holddown bar and the other of which is disposed in at least part of the polymeric material that defines the latch unit of the holddown bar. The rigid member has a medial portion extending between the ends thereof and is disposed in the polymeric material that defines the medial portion of the holddown bar. The holddown bar is sufficiently strong so that the polymeric material thereof can be a material that is more flexible and/ or more wear resistant, etc. than the material utilized when the holddown bar is merely made of all polymeric material without utilizing the rein- forcing member of aspects of this invention.
444859
Kleykamp Donald L.
Rush James B.
Borden Ladner Gervais Llp
Dayco Corporation
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