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US 5,509,767 AGranted
Attachment bolt
AssigneeAlvey, Inc.
InventorRichard L. Easton
Life of this patent
Estimating the term…
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AssigneeAlvey, Inc.
InventorRichard L. Easton
Estimating the term…
A conveyor comprises parallel side frames provided with a plurality of apertures and C-shaped cross members provided with apertures in the side walls disposed in juxtaposition to apertures in the side frames. The cross member apertures are each defined by a flat inner wall. The cross members are fastened to the side frames by means of hook-bolts having a hook portion extending through the side wall apertures and a shaft extending to a juxtaposed aperture in the side frame and provided with a nut and washer to secure the bolt in the side frame. The hook portion of the bolt is provided with a flat surface extending a substantial distance across the inner surface of the hook portion of the bolt to provide a load bearing contact area with the inner wall of the side member aperture. The cross members have tabs extending outwardly from each end which are inserted into complementary apertures in the side frames. The resulting bolted conveyor frame construction ensures frame alignment under heavy loads.
An attachment bolt comprising a shaft and a hook portion extending at an acute angle to the shaft, the hook portion having an inner surface and a flat surface area extending a substantial distance across the inner surface and extending in a direction substantially 90.degree. to the shaft, and further wherein the bolt has a predefined diameter and a portion of the flat surface has a predefined cross dimension, the ratio of the diameter to the cross dimension being in the range of 8:3 to 2:1.
An attachment bolt comprising a shaft and a hook portion extending at an acute angle to the shaft, the hook portion having an inner surface and a flat surface area extending a substantial distance across the inner surface and extending in a direction substantially 90.degree. to the shaft, wherein the bolt has a predefined diameter and the flat surface has a cross dimension substantially equal to 1/2 of the predefined diameter.
An attachment bolt for joining structural members, the attachment bolt comprising a shaft and a hook portion extending at a predetermined angle to the shaft and a flat surface area extending between the shaft and the hook portion for engagement with a flat surface area of a structural member, and further wherein the bolt has a predefined diameter and a portion of the flat surface has a predefined cross dimension, the ratio of the diameter to the cross dimension being in the range of 8:3 to 2:1.
An attachment bolt comprising a single bend forming a shaft portion and a hook portion, each of the shaft and hook portions having a proximal end and a distal end;
Dependencies are inferred from the claim text.