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US 9,284,971 B2Granted
Fastener and method of installing same
OwnerJohn D. Prattinventor
Life of this patent
Estimating the term…
Abstract
A fastener includes a body having deformable first end, a second end, and a passage extending through the body between the first and second ends. The fastener further includes a corebolt having first and second ends and a region of reduced diameter disposed between the first and second ends and a sleeve having first and second ends, the second end having a bulbing portion. The corebolt is disposed within the sleeve and the body with the first end of the corebolt in engagement with the first end of the sleeve and the first end of the body disposed adjacent the second end of the sleeve. The bulbing portion is adapted to form an enlarged blind head when the corebolt is rotated in relation to the sleeve. The first end of the body is adapted to deform radially inwardly into the region of reduced diameter.
Claims21
A fastener comprising:
- a body having a deformable first end, a second end, and a passage extending through the body between the first and second ends;
- a corebolt having first and second ends and a region of reduced diameter disposed between the first and second ends;
- and
- a sleeve having first and second ends, the second end having a bulbing portion;
- wherein the corebolt is disposed within the sleeve and the body with the first end of the corebolt in engagement with the first end of the sleeve and the first end of the body disposed adjacent the second end of the sleeve;
- and
- wherein the bulbing portion is adapted to form an enlarged blind head when the corebolt is rotated in relation to the sleeve;
- wherein the first end of the body is adapted to deform radially inwardly into the region of reduced diameter to allow movement of the blind head along the body.
5 more elements
A fastener comprising:
- a body having a deformable first end, a second end, and a threaded passage extending at least partially through the body between the first and second ends;
- a corebolt having first and second ends, the first end having an enlarged head and a region of reduced diameter between the first and second ends;
- and
- a sleeve having first and second ends, the second end having a bulbing portion;
- wherein the corebolt is disposed within the sleeve and the body with the corebolt in threaded engagement with the body and the first end of the body disposed adjacent the second end of the sleeve;
- wherein the bulbing portion is adapted to form an enlarged blind head when the corebolt is rotated in relation to the body and the first end of the body is adapted to deform radially inwardly into the region of reduced diameter to allow movement of the blind head along the body.
3 more elements
A fastener comprising:
- a body having deformable first end, a second end, and a passage extending through the body between the first and second ends;
- a corebolt having first and second ends and a region of reduced diameter disposed between the first and second ends;
- a first sleeve having first and second ends, the second end having a bulbing portion;
- and
- a second sleeve having first and second ends;
- wherein the corebolt is disposed within the first sleeve, the second sleeve, and the body with the first end of the corebolt in engagement with the first end of the second sleeve, the second end of the second sleeve disposed adjacent the first end of the first sleeve, and the first end of the body disposed adjacent the second end of the first sleeve;
- wherein the bulbing portion is adapted to form an enlarged blind head when the corebolt is rotated in relation to the second sleeve;
- and
- wherein the first end of the body is adapted to deform radially inwardly into the region of reduced diameter to allow movement of the blind head along the body.
6 more elements
A fastener comprising:
- a body having a tapered ramp positioned at a first end of the body and an enlarged head positioned at a second end of the body and spaced apart from the first end, the body configured to include a first bolt-receiving passage extending through the body between the first and second ends;
- a sleeve having a first wall section, a second wall section coupled to the first wall section, a third wall section coupled to the second wall section opposite of the first wall section, and a second bolt-receiving passage extending through the sleeve;
- and
- a corebolt positioned to lie in the first bolt-receiving passage of the body and the second bolt-receiving passage of the sleeve;
- wherein the second wall section of the sleeve is configured to flex radially outward relative to the third wall section and the first wall section is configured to flex radially inward relative to the second wall section to form an enlarged blind head when the first wall section of the sleeve is forced into engagement with the tapered ramp by the corebolt and wherein the tapered ramp is adapted to flex radially inward to allow the enlarged blind head to move along the body.
2 more elements
Dependencies are inferred from the claim text.