Patent US3861268A successfully refreshed from Google Patents.
US3861268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blind hole bolt
Assignee: JAGGERS EQUIPMENT CO Inc
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Filing: 1972-06-06
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Granted: 1975-01-21
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Expires: 1992-06-06
Abstract
Abstract Discloses a blind hole bolt for use in areas where it is necessary to provide a strong anchoring connection requiring a tight fit and in which one side of the blind hole is inaccessible. The bolt comprises a shaft threaded at one end and contain a slot at the other end in which a flat locking blade is fitted. The flat blade contains a circular embossed pivot point and guide ball slidably mounted in a guiding channel contained in the slot. The embossed pivot point and guide ball allows the flat blade to pivot between a first position axially aligned with the shaft of the bolt to a second locked position generally transversely disposed relative to the shaft and for axial movement within the slot in moving between the two positions. A welded locking blade stop is provided at the end of the slot so that the blade when in locked position is in abutment with the stop which provides strength to the anchoring bolt.
Inventors
- 👤 Edward C Jaggers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:27
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B13/00; F16B13/04; F16B13/08; F16B13/0808
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
281 words
A blind hole bolt comprising in combination, an elongated shaft, threads at one end of said shaft, a diametrically disposed slot extending axially from the other end of said shaft along a portion of said shaft, a solid locking blade, pivotable means for mounting said locking blade in said slot for movement between a first position in which said blade is contained within said slot and is axially aligned with said shaft and a second position in which said blade extends outside of said shaft and is generally transversely aligned relative to said shaft; A. the improvement in said pivotable means comprising: 1. a guide channel generally semi-circular in cross section and axially aligned with said shaft in said slot; 2. a hemispherical guide and pivot means projecting from the side of said locking blade, said hemispherical guide and pivot means being complementary to said channel in cross section for slidably fitting in said guide channel and for moving axially in said channel as said blade pivotably moves from one position to another; and, B. the further combination therewith of a locking blade stop comprising a strength closure of said slot at the end of said shaft, said locking blade stop comprising an integral mass of metal fused to the sides and across the bottom of said slot and tapered at one end, at the top to complement the surfae of said locking blade, and serving as a means for limiting the axial movement of said locking blade within said slot and as an abutment means of high tensile strength for said locking blade when said locking blade is in locking position in transverse alignment at the end of said shaft.
Claim 2
Dependent Claim
281 words
A blind hole bolt comprising in combination, an elongated shaft, threads at one end of said shaft, a diametrically disposed slot extending axially from the other end of said shaft along a portion of said shaft, a solid locking blade, pivotable means for mounting said locking blade in said slot for movement between a first position in which said blade is contained within said slot and is axially aligned with said shaft and a second position in which said blade extends outside of said shaft and is generally transversely aligned relative to said shaft; A. the improvement in said pivotable means comprising: 1. a guide channel generally semi-circular in cross section and axially aligned with said shaft in said slot; 2. a hemispherical guide and pivot means projecting from the side of said locking blade, said hemispherical guide and pivot means being complementary to said channel in cross section for slidably fitting in said guide channel and for moving axially in said channel as said blade pivotably moves from one position to another; and, B. the further combination therewith of a locking blade stop comprising a strength closure of said slot at the end of said shaft, said locking blade stop comprising an integral mass of metal fused to the sides and across the bottom of said slot and tapered at one end, at the top to complement the surfae of said locking blade, and serving as a means for limiting the axial movement of said locking blade within said slot and as an abutment means of high tensile strength for said locking blade when said locking blade is in locking position in transverse alignment at the end of said shaft.
Claim 3
Dependent Claim
160 words
a hemispherical guide and pivot means projecting from the side of said locking blade, said hemispherical guide and pivot means being complementary to said channel in cross section for slidably fitting in said guide channel and for moving axially in said channel as said blade pivotably moves from one position to another; and, B. the further combination therewith of a locking blade stop comprising a strength closure of said slot at the end of said shaft, said locking blade stop comprising an integral mass of metal fused to the sides and across the bottom of said slot and tapered at one end, at the top to complement the surfae of said locking blade, and serving as a means for limiting the axial movement of said locking blade within said slot and as an abutment means of high tensile strength for said locking blade when said locking blade is in locking position in transverse alignment at the end of said shaft.
Claim 4
Dependent Claim
160 words
a hemispherical guide and pivot means projecting from the side of said locking blade, said hemispherical guide and pivot means being complementary to said channel in cross section for slidably fitting in said guide channel and for moving axially in said channel as said blade pivotably moves from one position to another; and, B. the further combination therewith of a locking blade stop comprising a strength closure of said slot at the end of said shaft, said locking blade stop comprising an integral mass of metal fused to the sides and across the bottom of said slot and tapered at one end, at the top to complement the surfae of said locking blade, and serving as a means for limiting the axial movement of said locking blade within said slot and as an abutment means of high tensile strength for said locking blade when said locking blade is in locking position in transverse alignment at the end of said shaft.
Claim 5
Dependent Claim
26 words
A blind hole bolt, as defined in claim 1, in which said guide and pivot means is an embossment in the body of said locking blade.
Claim 6
Dependent Claim
27 words
A blind hole bolt, as defined in claim 1, in which said strength closure comprises filet welds along the sides and bottom of said locking blade stop.
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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |