US3725993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener alignment means with adjustment bushing
Assignee: Individual
•
Filing: 1970-12-14
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Granted: 1973-04-10
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Expires: 1990-12-14
Abstract
Abstract Following are disclosed methods and apparatus for facilitating the alignment of the eccentric bores of ''''work side'''' and ''''blind side'''' bushings used in the misaligned, fastener receiving holes of structural members. A shaft is sized to extend into the eccentric bores, and a latch element is laterally carried by the shaft and adapted to extend into, and retract from at least one indentation in the bore of a selected bushing for rotational orientation thereof. An adjustment bushing is carried by the shaft and has a uniform cylindrical wall thickness equal to the minimum wall thickness of the work side bushing. An alignment collar is also carried by the shaft and has an aperture that receives the shaft, the collar having a larger diameter than the diameter of an engaged bushing to enable application of torque and visual reference for detecting axial angularity misalignment between said bushing and its receiving hole in the structural member. When used with the alignment collar, the adjustment bushing gauges and establishes the position of the blind side bushing to enable insertion of the work side bushing and a fastener in a more efficient manner without need for additional rotation of either the blind side or the work side bushing. Hence, the work side and blind side bushings may be accurately aligned through the utilization of both the alignment collar and the adjustment bushing.
Inventors
- 👤 J Siler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:45
CPC Classifications
B; B25; B25B; B25B27/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49895; Y10T29/53; Y10T29/53909; Y10T29/53913; Y10T403/00; Y10T403/75
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
217 words
In a fastener and assembly means including a work side bushing, a blind side bushing, each having eccentric, axially extending bores to receive a shaft and a latch element that extends into an indentation in one of said bushings, all of which cooperate to connect structural members having misaligned, fastener receiving holes, the improvement comprising: an alignment collar having an aperture that receives said shaft, said collar having a large diameter shoulder adapted to face and engage the work side bushing; said work side bushing having a planar, exposed surface transverse with its axially extending bore; an adjustment bushing having an aperture to receive said shaft, said aperture being circular in transverse cross-section and concentric with a cylindrical exterior of said bushing, the wall thickness of said bushing being substantially equal to the minimum wall thickness of the work side bushing; said alignment collar having a planar surface perpendicular with the axis of its aperture and larger than said planar surface of the work side bushing; both said planar surfaces selectively engaging for application of axial force and torque from the collar to the work side bushing whereby the work side bushing may be adjusted with limited interference fit and the collar visually inspected for space between the periphery of the collar and the associated structural member.
Claim 2
Dependent Claim
217 words
In a fastener and assembly means including a work side bushing, a blind side bushing, each having eccentric, axially extending bores to receive a shaft and a latch element that extends into an indentation in one of said bushings, all of which cooperate to connect structural members having misaligned, fastener receiving holes, the improvement comprising: an alignment collar having an aperture that receives said shaft, said collar having a large diameter shoulder adapted to face and engage the work side bushing; said work side bushing having a planar, exposed surface transverse with its axially extending bore; an adjustment bushing having an aperture to receive said shaft, said aperture being circular in transverse cross-section and concentric with a cylindrical exterior of said bushing, the wall thickness of said bushing being substantially equal to the minimum wall thickness of the work side bushing; said alignment collar having a planar surface perpendicular with the axis of its aperture and larger than said planar surface of the work side bushing; both said planar surfaces selectively engaging for application of axial force and torque from the collar to the work side bushing whereby the work side bushing may be adjusted with limited interference fit and the collar visually inspected for space between the periphery of the collar and the associated structural member.
Claim 3
Dependent Claim
148 words
In a fastener and assembly means including a work side bushing, a blind side bushing, each having eccentric, axially extending bores to receive a shaft and a latch element that extends into an indentation in one of said bushings, all of which cooperate to connect structural members having misaligned fastener receiving holes, the improvement comprising: an alignment collar having an aperture that receives said shaft, said collar having a large diameter shoulder that is adapted to face and engage the work side bushing; said work side bushing having a peripheral portion adapted to engage the shoulder of said alignment collar; an adjustment bushing having an aperture to receive said shaft, the wall thickness of said bushing being substantially equal to the minimum wall thickness of the work side bushing; said alignment collar having a plane defining portion adapted to engage the surface of the work side structural member.
Claim 4
Dependent Claim
148 words
In a fastener and assembly means including a work side bushing, a blind side bushing, each having eccentric, axially extending bores to receive a shaft and a latch element that extends into an indentation in one of said bushings, all of which cooperate to connect structural members having misaligned fastener receiving holes, the improvement comprising: an alignment collar having an aperture that receives said shaft, said collar having a large diameter shoulder that is adapted to face and engage the work side bushing; said work side bushing having a peripheral portion adapted to engage the shoulder of said alignment collar; an adjustment bushing having an aperture to receive said shaft, the wall thickness of said bushing being substantially equal to the minimum wall thickness of the work side bushing; said alignment collar having a plane defining portion adapted to engage the surface of the work side structural member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |