US3936206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular pole slip joint construction
Assignee: BRUCE LAKE Co
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Filing: 1975-02-18
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Granted: 1976-02-03
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Expires: 1995-02-18
Abstract
Abstract A slip joint construction for a tubular pole section of a utility pole such as for electrical transmission or lighting wherein a male portion of a tapered pole section fits telescopically within a female portion of another tapered pole section. The female portion is provided with a back-up strip extending along the long seams thereof. The male portion is provided with slots which extend along the long seams thereof, each slot extending the length of the slip joint. A doubler plate is welded on the inside of the male portion to extend across and along the longitudinal extent of each slot.
Inventors
- 👤 Raymond F. Meisberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:30
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/02; E04H12/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
173 words
In a slip joint construction for a tubular pole useful as a utility pole and having a first tapered tubular pole section constructed of a pair of half shells joined at longitudinal seam welds, a second tapered tubular pole section constructed of a pair of half shells joined at longitudinal seam welds, said first pole section having a male portion at one end thereof, said second pole section having a female portion at one end thereof, said male poriton being adapted to fit telescopically within said female portion with a friction tight slip joint connection, the improvement comprising a back-up strip welded to a longitudinal seam weld of said female section on the inside thereof, a longitudinal slot formed in the end of said male portion aligned with a longitudinal seam weld thereof, and a plate welded on the inside of said male portion and extending across and along the longitudinal extent of said slot to cooperate therewith to form a recess for receiving said back-up strip when the slip joint is made.
Claim 2
Dependent Claim
173 words
In a slip joint construction for a tubular pole useful as a utility pole and having a first tapered tubular pole section constructed of a pair of half shells joined at longitudinal seam welds, a second tapered tubular pole section constructed of a pair of half shells joined at longitudinal seam welds, said first pole section having a male portion at one end thereof, said second pole section having a female portion at one end thereof, said male poriton being adapted to fit telescopically within said female portion with a friction tight slip joint connection, the improvement comprising a back-up strip welded to a longitudinal seam weld of said female section on the inside thereof, a longitudinal slot formed in the end of said male portion aligned with a longitudinal seam weld thereof, and a plate welded on the inside of said male portion and extending across and along the longitudinal extent of said slot to cooperate therewith to form a recess for receiving said back-up strip when the slip joint is made.
Claim 3
Dependent Claim
71 words
A slip joint construction according to claim 1 wherein there is provided a back-up strip welded to each longitudinal seam weld of said female section on the inside thereof, a longitudinal slot formed in the end of said male portion aligned with each longitudinal seam weld thereof, and a plate welded on the inside of said male portion and extending across and along the longitudinal extent of each of said slots.
Claim 4
Dependent Claim
41 words
A slip joint construction according to claim 2 wherein said plates extend a longitudinal distance beyond the inner end of the longitudinal slot, the longitudinal seam welds of said first pole being welded to said plate portion extending beyond said slot.
Claim 5
Dependent Claim
46 words
A slip joint construction according to claim 3 wherein said plates are secured to said first pole section by a fillet weld extending along the edges of each of said slots, said fillet weld being joined with said longitudinal seam welds of said first pole section.
Claim 6
Dependent Claim
32 words
A slip joint construction according to claim 4 wherein each of said plates is secured to said first pole section by a second fillet weld extending around the periphery of each plate.
Claim 7
Dependent Claim
36 words
A slip joint construction according to claim 2 wherein the thickness of said plates on said first pole section is at least equal to the thickness of said pole section plus approximately one-eighth of an inch.
Claim 8
Dependent Claim
36 words
A slip joint construction according to claim 5 wherein the thickness of said plates on said first pole section is at least equal to the thickness of said pole section plus approximately one-eighth of an inch.
Claim 9
Dependent Claim
29 words
A slip joint construction according to claim 2 wherein the longitudinal extent of said slots is equal to approximately ten per cent greater than the design slip joint length.
Claim 10
Dependent Claim
29 words
A slip joint construction according to claim 5 wherein the longitudinal extent of said slots is equal to approximately ten per cent greater than the design slip joint length.
Claim 11
Dependent Claim
29 words
A slip joint construction according to claim 6 wherein the longitudinal extent of said slots is equal to approximately ten per cent greater than the design slip joint length.
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) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |