US3661048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening means for structural members
Assignee: Town Line Erection Co Inc
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Filing: 1969-06-16
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Granted: 1972-05-09
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Expires: 1989-06-16
Abstract
Abstract A fastening means for securing structural members including structural beams has an unthreaded bolt having a partially tapered shank, a noncircular head and at least one hole through the shank and a generally rod-shaped locking pin one end of which is capable of fitting in the hole in the shank of the bolt, the locking pin having an eye portion at the other end adapted to receive a tool therethrough to facilitate removal of the locking pin from the bolt and an expanded portion in the locking pin limiting the portion of the locking pin passing through the hole in the bolt.
Inventors
- 👤 Watson M Judd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:59
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/02; F16B21/00; F16B21/10; F16B21/12; F16B7/00; Y; Y10; Y10T; Y10T403/00; Y10T403/44
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
140 words
A fastening means for securing structural members in place capable of being easily released from the members, comprising a. an unthreaded bolt having i. a partially tapered shank, ii. a noncircular head and iii. at least one hole through the shank portion of the bolt; and b. a locking pin with a generally round, solid stem having i. one end of the stem being tapered and adapted to fit into the at least one hole in the bolt, ii. an expanded, elongated, solid portion in the round stem of the locking pin limiting the end of the stem fitting into the hole in the bolt and, iii. an eye portion being separated from the expanded portion by a portion of the round stem, the eye portion being capable of receiving an instrument therethrough to facilitate removal of the locking pin.
Claim 2
Dependent Claim
140 words
A fastening means for securing structural members in place capable of being easily released from the members, comprising a. an unthreaded bolt having i. a partially tapered shank, ii. a noncircular head and iii. at least one hole through the shank portion of the bolt; and b. a locking pin with a generally round, solid stem having i. one end of the stem being tapered and adapted to fit into the at least one hole in the bolt, ii. an expanded, elongated, solid portion in the round stem of the locking pin limiting the end of the stem fitting into the hole in the bolt and, iii. an eye portion being separated from the expanded portion by a portion of the round stem, the eye portion being capable of receiving an instrument therethrough to facilitate removal of the locking pin.
Claim 3
Dependent Claim
32 words
The fastening means of claim 1 where the end of the locking pin adapted to fit into the hole in the bolt is magnetized and the bolt is formed of magnetic material.
Claim 4
Dependent Claim
23 words
The fastening means of claim 1 where at least one washer is placed on the shank near the head of the unthreaded bolt.
Claim 5
Dependent Claim
16 words
The fastening means of claim 1 where the unthreaded bolt is made from high strength steel.
Claim 6
Dependent Claim
18 words
The fastening means of claim 1 where the shank of the unthreaded bolt has multiple holes drilled therethrough.
Claim 7
Dependent Claim
14 words
The fastening means of claim 1 where the unthreaded bolt has a hexagonal head.
Claim 8
Dependent Claim
21 words
The fastening means of claim 1 where at least one fourth of the stem end of the unthreaded bolt is tapered.
Claim 9
Dependent Claim
18 words
The fastening means of claim 1 in which the unthreaded bolt has two holes through the shank portion.
Claim 10
Dependent Claim
18 words
The fastening means of claim 1 in which the unthreaded bolt has one hole through the shank portion.
Claim 11
Dependent Claim
23 words
The fastening means of claim 1 in which the unthreaded bolt has two holes through the shank portion generally perpendicular to each other.
Claim 12
Dependent Claim
16 words
The fastening means of claim 1 where the unthreaded bolt is made from a tool steel.
Claim 13
Dependent Claim
16 words
The fastening means of claim 1 where the locking pin is made from high strength steel.
References Cited (Backward Citations)
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US597748A
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US1303665A
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US1280756A
Cited
US1390609A
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Cited
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Cited
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Cited
US2742250A
Cited
US2853746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |