Patent US3802379A successfully refreshed from Google Patents.
US3802379A
Expired / Lapsed
US
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Load indicating fastener
Assignee: Oregon Tool Inc
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Filing: 1972-02-07
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Granted: 1974-04-09
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Expires: 1992-02-07
Abstract
Abstract A fastener including a bolt and a die thereon. The bolt has a drawable portion that is designed to be drawn through the die when a predetermined tensile force is exceeded.
Inventors
- 👤 G Sandberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:30
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/14; G01G19/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
173 words
A load indicating assembly including a device fastening two members together and load indicating means for signalling an operator when a determinable load iS applied to the device comprising; at least two members in abutting relation with aligned openings for receiving the shank of a bolt, a bolt having a shank portion and an enlarged drawable portion, a die having a tapered opening larger than the shank portion of the bolt and smaller than the enlarged drawable portion of the bolt, the shank of the bolt inserted through the tapered opening of the die and through the aligned openings of the members, drawing and holding means engaging the end of the shank of the bolt on the side of the members opposite the enlarged drawable portion for drawing the bolt through the die and members to hold the members together under pressure, and signalling means in connection with the drawable portion of the bolt responsive to the drawing of the drawable portion through the die opening to signal an operator of such drawing.
Claim 2
Dependent Claim
173 words
A load indicating assembly including a device fastening two members together and load indicating means for signalling an operator when a determinable load iS applied to the device comprising; at least two members in abutting relation with aligned openings for receiving the shank of a bolt, a bolt having a shank portion and an enlarged drawable portion, a die having a tapered opening larger than the shank portion of the bolt and smaller than the enlarged drawable portion of the bolt, the shank of the bolt inserted through the tapered opening of the die and through the aligned openings of the members, drawing and holding means engaging the end of the shank of the bolt on the side of the members opposite the enlarged drawable portion for drawing the bolt through the die and members to hold the members together under pressure, and signalling means in connection with the drawable portion of the bolt responsive to the drawing of the drawable portion through the die opening to signal an operator of such drawing.
Claim 3
Dependent Claim
45 words
A load indicating assembly as defined in claim 1 wherein the bolt has a limiting head portion larger than the drawable portion provided at the end of the bolt opposite the drawing and holding means to prevent drawing of the bolt completely through the members.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |