Patent US4490065A successfully refreshed from Google Patents.
US4490065A
Expired / Lapsed
US
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Splice locking device
Assignee: AMERICAN POLE STRUCTURES Corp HOUSTON A CORP OF TX
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Filing: 1982-12-16
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Granted: 1984-12-25
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Expires: 2002-12-16
Abstract
Abstract A locking device (1) for use with joints between two telescoping members (28,30) include a bushing (2) with an enlarged head (8) and a neck (6) for inserting into a pair of aligned holes (34) in the telescoping members (28,30). The device is locked by drawing a bolt (16) into the central bore (10) of the bushing (2) by drawing means (20,22,24). The bolt (16) includes a lug (18) for contacting the inner telescoping member (28). Also provided is a channel (14) in the neck (6) which permits the lug (18) to slide within the bushing (2), thus allowing effective engagement of the device (1) for a range of telescoping member wall thicknesses.
Inventors
- 👤 Ray D. Ullrich
- 👤 Douglas C. Sherman
- 👤 Leo Licon, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:22
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/18; F16B7/182; F16B35/00; F16B35/04; F16B35/06; F16B5/00; F16B5/02; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7084; Y10T403/75
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
172 words
A device for locking a joint between two telescoping members, each member having a hole aligned with the corresponding hole in the other member, comprising: a bolt, having a shank portion and a projecting lug portion adjacent one end, the lug and shank forming a T-shape extending radially outward from the shank portion and having a span greater than the diameter of said holes, for contacting the inner telescoping member; a bushing, having a neck for fitting within said aligned holes and an enlarged head disposed adjacent to one end for contacting the outer telescoping member, the bushing further including a central bore running the entire length of the bushing for slidingly receiving the shank portion of the bolt therewithin, and a channel, disposed in the neck portion of the bushing, and extending diametrically across the bushing neck for allowing longitudinal movement of the lug within the bushing neck, and means cooperating with the bushing for drawing the lug toward the head of the bushing, thereby locking said device in said holes.
Claim 2
Independent Claim
172 words
A device for locking a joint between two telescoping members, each member having a hole aligned with the corresponding hole in the other member, comprising: a bolt, having a shank portion and a projecting lug portion adjacent one end, the lug and shank forming a T-shape extending radially outward from the shank portion and having a span greater than the diameter of said holes, for contacting the inner telescoping member; a bushing, having a neck for fitting within said aligned holes and an enlarged head disposed adjacent to one end for contacting the outer telescoping member, the bushing further including a central bore running the entire length of the bushing for slidingly receiving the shank portion of the bolt therewithin, and a channel, disposed in the neck portion of the bushing, and extending diametrically across the bushing neck for allowing longitudinal movement of the lug within the bushing neck, and means cooperating with the bushing for drawing the lug toward the head of the bushing, thereby locking said device in said holes.
Claim 3
Dependent Claim
47 words
A device for locking a joint as recited in claim 1, wherein the bolt further includes screw threads disposed about the end of the bolt opposite the lug wherein the means for drawing the bolt into the bushing comprises internally threaded nut for engaging the bolt threads.
Claim 4
Independent Claim
179 words
A device for locking a splice between two concentric, closely fitting cylinders, each cylinder having a hole in the wall thereof in alignment with a corresponding hole in the wall of the other cylinder, comprising: a bolt, having a shank portion and a projecting lug adjacent one end, the lug extending radially outward beyond the neck portion and forming, with the shank, a T-portion having a span greater than the diameter of said holes, for contacting the inner cylinder member; a bushing, having a neck for fitting within said aligned holes and an enlarged head disposed adjacent to one end for contacting the outer cylinder, further including a central bore running the entire length of the bushing for slidingly accepting the shank portion of the bolt therewithin, and a channel, disposed in the neck portion of the bushing and extending diametrically across the bushing neck for allowing longitudinal movement of the lug within the bushing neck, and means cooperating with the bushing for drawing the lug toward the head of the bushing, thereby locking said device in said holes.
Claim 5
Independent Claim
179 words
A device for locking a splice between two concentric, closely fitting cylinders, each cylinder having a hole in the wall thereof in alignment with a corresponding hole in the wall of the other cylinder, comprising: a bolt, having a shank portion and a projecting lug adjacent one end, the lug extending radially outward beyond the neck portion and forming, with the shank, a T-portion having a span greater than the diameter of said holes, for contacting the inner cylinder member; a bushing, having a neck for fitting within said aligned holes and an enlarged head disposed adjacent to one end for contacting the outer cylinder, further including a central bore running the entire length of the bushing for slidingly accepting the shank portion of the bolt therewithin, and a channel, disposed in the neck portion of the bushing and extending diametrically across the bushing neck for allowing longitudinal movement of the lug within the bushing neck, and means cooperating with the bushing for drawing the lug toward the head of the bushing, thereby locking said device in said holes.
Claim 6
Dependent Claim
54 words
A device for locking a splice between two concentric, closely fitting cylinders as recited in claim 3, wherein the bolt further includes screw threads disposed about the end of the bolt opposite the lug and wherein the means for drawing the bolt into the bushing comprises internally threaded nut for engaging the bolt threads.
References Cited (Backward Citations)
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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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |