Back to results
US 5,463,786 AGranted
Weldless grating for bridge decks
AssigneeGrate-Lok Co., Inc.
InventorsRonald W. Mangone, Dennis Imm
Life of this patent
Estimating the term…
Abstract
A weldless grating comprising a plurality of longitudinal load bearing members, secondary load bearing members and/or tertiary load bearing members having a rod extending through the tertiary load bearing members and primary load bearing members locking the tertiary load bearing members in slots in the secondary load bearing members and locking the secondary load bearing members in slots in the primary load bearing members to form the grating.
Claims20
A weldless grating comprising:
- (a) a plurality of longitudinally extending primary load bearing members having a top portion and a bottom portion having a plurality of spaced-apart slots therein extending downwardly through the top portion, the slots in each of said primary load bearing members being aligned with the slots in adjacent primary load bearing members;
- (b) a plurality of secondary load bearing members having a top portion, the secondary load bearing members positioned in the aligned slots in the primary load bearing members, the secondary load bearing members provided with slots extending downwardly through the top portion and located between said primary load bearing members;
- (c) a plurality of tertiary load bearing members positioned in the slots in the secondary load bearing members;
- and
- (d) a rod extending through said tertiary load bearing members and said primary load bearing members locking said tertiary load bearing members in the slots in said secondary load bearing members and locking said secondary load bearing members in the slots in said primary load bearing members to form said weldless grating.
2 more elements
A weldless metal grating comprising:
- (a) a plurality of substantially parallel, longitudinally extending primary load bearing members having a top portion and a bottom portion having a plurality of spaced-apart slots therein extending downwardly through the top portion, the slots in each of said primary load bearing members being aligned with the slots in adjacent primary load bearing members;
- (b) a plurality of secondary load bearing members having secondary bottom slots positioned in alignment with the aligned slots in the primary load bearing members, the secondary load bearing members provided with top slots extending downwardly through the top portion and located between said primary load bearing members;
- (c) a plurality of tertiary load bearing members having tertiary bottom slots positioned in alignment with the top slots in the secondary load bearing members;
- and
- (d) a rod extending through said tertiary load bearing members and said primary load bearing members locking said tertiary load bearing members in the slots in said secondary load bearing members and locking said secondary load bearing members in the slots in said primary load bearing members to form said weldless metal grating.
2 more elements
A concrete module comprising a weldless metal grating at least partially encapsulated in a body of concrete, the weldless metal grating comprising:
- (a) a plurality of longitudinally extending primary load bearing members having a top portion and a bottom portion having a plurality of spaced-apart slots therein extending downwardly through the top portion, the slots in each of said primary load bearing members being aligned with the slots in adjacent primary load bearing members;
- (b) a plurality of secondary load bearing members having a top portion, the secondary load bearing members positioned in the aligned slots in the primary load bearing members, the secondary load bearing members provided with slots extending downwardly through the top portion and located between said primary load bearing members;
- (c) a plurality of tertiary load bearing members positioned in the slots in the secondary load bearing members;
- and
- (d) a rod extending through said tertiary load bearing members and said primary load bearing members locking said tertiary load bearing members in the slots in said secondary load bearing members and locking said secondary load bearing members in the slots in said primary load bearing members to form said weldless metal grating.
2 more elements
A concrete module comprising a metal grating at least partially encapsulated in a body of concrete, the metal grating comprising:
- (a) a plurality of substantially parallel, longitudinally extending primary load bearing members having a top portion and a bottom portion having a plurality of spaced-apart slots therein extending downwardly through the top portion, the slots in each of said primary load bearing members being aligned with the slots in adjacent primary load bearing members;
- (b) a plurality of secondary load bearing members having secondary bottom slots positioned in alignment with the aligned slots in the primary load bearing members, the secondary load bearing members provided with top slots extending downwardly through the top portion and located between said primary load bearing members;
- (c) a plurality of tertiary load bearing members having tertiary bottom slots positioned in alignment with the top slots in the secondary load bearing members;
- and
- (d) a rod extending through said tertiary load bearing members and said primary load bearing members locking said tertiary load bearing members in the slots in said secondary load bearing members and locking said secondary load bearing members in the slots in said primary load bearing members to form said grating.
2 more elements
Dependencies are inferred from the claim text.