Patent US3602535A successfully refreshed from Google Patents.
US3602535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft coupling
Assignee: Motors Liquidation Co
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Filing: 1970-05-14
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Granted: 1971-08-31
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Expires: 1990-05-14
Abstract
Abstract An axially adjustable coupling between telescoping, splined together compressor and turbine shafts of a gas turbine engine which includes a coupling threaded to both the compressor shaft and to the turbine shaft and a lock coupling splined to the coupling and normally biased into splined engagement with the compressor shaft.
Inventors
- 👤 William E Behning
- 👤 Cyril M Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:29
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F01; F01D; F01D5/00; F01D5/02; F01D5/026; F16B; F16B2200/00; F16B2200/69; F16D1/10; F16D2001/103; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7033
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
A coupling arrangement comprising, in combination, a first threaded member, a second threaded member telescoped over a portion of said first threaded member, spline means on said first member and on said second member nonrotatively coupling said first member and said second member together, a coupling threaded to said first member and to said second member, a lock coupling slideably and nonrotatively mounted on said coupling, spline means on said lock coupling and on said first member adapted for engagement to nonrotatively lock said lock coupling to said first member and spring means normally biasing said lock coupling into engagement with said first member.
Claim 2
Dependent Claim
104 words
A coupling arrangement comprising, in combination, a first threaded member, a second threaded member telescoped over a portion of said first threaded member, spline means on said first member and on said second member nonrotatively coupling said first member and said second member together, a coupling threaded to said first member and to said second member, a lock coupling slideably and nonrotatively mounted on said coupling, spline means on said lock coupling and on said first member adapted for engagement to nonrotatively lock said lock coupling to said first member and spring means normally biasing said lock coupling into engagement with said first member.
Claim 3
Dependent Claim
21 words
A coupling arrangement according to claim 1 wherein said coupling includes a spline slideably engaged with splines on said lock coupling.
Claim 4
Dependent Claim
51 words
A coupling arrangement according to claim 1 wherein said coupling includes a flange having spaced-apart wide notches and narrow notches therein and, wherein said lock coupling includes a flange provided with spaced-apart narrow notches therein, the narrow notches in said coupling being aligned with said narrow notches in said lock coupling.
Claim 5
Dependent Claim
81 words
A coupling arrangement according to claim 3 in combination with a wrench having a first set of lugs adapted to be insertable through said narrow notches of said coupling and said lock coupling and a second set of lugs spaced from said first set of lugs a distance greater than the combined width of said flanges of said coupling and said lock coupling, said second set of said lugs being adapted to be engageable in said wide notches of said coupling.
Claim 6
Dependent Claim
122 words
An axially adjustable shaft coupling comprising, in combination, a first hollow internally threaded shaft telescoped within said first shaft, spline means on said first shaft and said second shaft nonrotatively coupling said first shaft to said second shaft, a tubular coupling internally threaded to said first shaft and to said second shaft, a tubular lock coupling telescoped within said coupling, spline means on said coupling and said lock coupling nonrotatively joining said coupling and lock coupling together, spline means on said lock coupling and on said first shaft adapted for Nonrotatively joining said lock coupling to said first shaft, and spring means normally biasing said lock coupling whereby said spline means on said lock coupling and on said first shaft are engaged.
Claim 7
Dependent Claim
122 words
An axially adjustable shaft coupling comprising, in combination, a first hollow internally threaded shaft telescoped within said first shaft, spline means on said first shaft and said second shaft nonrotatively coupling said first shaft to said second shaft, a tubular coupling internally threaded to said first shaft and to said second shaft, a tubular lock coupling telescoped within said coupling, spline means on said coupling and said lock coupling nonrotatively joining said coupling and lock coupling together, spline means on said lock coupling and on said first shaft adapted for Nonrotatively joining said lock coupling to said first shaft, and spring means normally biasing said lock coupling whereby said spline means on said lock coupling and on said first shaft are engaged.
Claim 8
Dependent Claim
61 words
The axially adjustable shaft coupling of claim 5 wherein said coupling includes an internal flange with a set of wide notches and a set of narrow notches therein and wherein said lock coupling includes an internal flange provided with a set of narrow notches therein, the narrow notches in said coupling being aligned with said narrow notches in said lock coupling.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |