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US 12,669,144 B2Granted
Threaded fastener
OwnerYu-Min Cheninventor
Life of this patent
Estimating the term…
Abstract
A fastener includes a bolt including a head and a threaded shank including a bare section proximate the head, an end section having a wider end and having a plurality of alternate grooves and ridges, an intermediate section proximate the end section and having a spiral trough, and a threaded section between the intermediate section and the bare section; and a hollow member including a head member and a malleable shank having a plurality of holes. The end section is tapered toward the intermediate section at an angle of 3-degree to 8-degree.
Claims1
A fastener, comprising;
- a bolt including a head and a threaded shank including a bare section proximate the head, an end section having a plurality of alternate grooves and ridges, an intermediate section proximate the end section and having a spiral trough, and a threaded section between the intermediate section and the bare section;
- and
- a hollow member including a head member and a malleable shank having a plurality of holes;
- wherein the end section is tapered toward the intermediate section at an angle of 3-degree to 8-degree.
1 more element
Dependencies are inferred from the claim text.