Patent US4012154A successfully refreshed from Google Patents.
US4012154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Threadless locking device
Assignee: RTX Corp
•
Filing: 1973-09-28
•
Granted: 1977-03-15
•
Expires: 1993-09-28
Abstract
Abstract A shaft bearing retention means comprises a segmented ring having a conical inner surface which is placed about a large diameter shaft having a corresponding conical indentation about its periphery to receive the ring. The segments are retained in assembled position on the shaft by joining pins extended through interengaging lapped tongues on the ends of each segment and by attaching one or more flanged retaining rings thereto by screws or bolts. Additional clamping screws or bolts pass through the retaining ring and are threaded into the segments, projecting beyond the latter so as to bear against a thrust ring through which the shaft passes. The axially adjustable thrust ring engages a bearing assembly which is fixed against axial movement by a shoulder on the shaft. Axial force is produced against the bearing assembly by the clamping bolts due to wedging action of the mating conical surfaces on the shaft and the segmented ring.
Inventors
- 👤 Robert J. Durwin
- 👤 Joseph H. Mancini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:43
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/09; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/063; F16B; F16B2200/00; F16B2200/40; F16B2200/406; F16C2300/00; F16C2300/10; F16C2300/14; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
In combination, a shaft having an annular indentation including a conical bottom surface, a segmented ring having a mating conical inner periphery adapted to be seated in said indentation, said segments having half-lap joints at their meeting ends, joining pins extending through the mutually overlapping ends of said segments, a retaining ring secured to a radial face of said segmented ring having a peripheral flange overlying and closely embracing the outer periphery of said segments, and clamping bolts located about the periphery of said rings extend through said rings in an axial direction and are threaded into said segments and extend therebeyond.
Claim 2
Dependent Claim
102 words
In combination, a shaft having an annular indentation including a conical bottom surface, a segmented ring having a mating conical inner periphery adapted to be seated in said indentation, said segments having half-lap joints at their meeting ends, joining pins extending through the mutually overlapping ends of said segments, a retaining ring secured to a radial face of said segmented ring having a peripheral flange overlying and closely embracing the outer periphery of said segments, and clamping bolts located about the periphery of said rings extend through said rings in an axial direction and are threaded into said segments and extend therebeyond.
Claim 3
Dependent Claim
134 words
In combination, a shaft having an annular indentation including a conical bottom surface, a shoulder on said shaft spaced from said indentation on the side adjacent the small diameter of said conical surface, a segmented ring having a mating conical inner periphery seated on the conical surface in said indentation, the segments of said ring having half-lap joints at their meeting ends, joining pins extending through the mutually overlapping ends of said segments, a retaining ring secured to one radial face of said segmented ring having a peripheral flange overlying and closely embracing the outer periphery of said segmented ring, and preload bolts located about the periphery of said assembled rings which extend through the latter in an axial direction, are threaded into said segments and extend therebeyond toward the shoulder on said shaft.
Claim 4
Dependent Claim
134 words
In combination, a shaft having an annular indentation including a conical bottom surface, a shoulder on said shaft spaced from said indentation on the side adjacent the small diameter of said conical surface, a segmented ring having a mating conical inner periphery seated on the conical surface in said indentation, the segments of said ring having half-lap joints at their meeting ends, joining pins extending through the mutually overlapping ends of said segments, a retaining ring secured to one radial face of said segmented ring having a peripheral flange overlying and closely embracing the outer periphery of said segmented ring, and preload bolts located about the periphery of said assembled rings which extend through the latter in an axial direction, are threaded into said segments and extend therebeyond toward the shoulder on said shaft.
Claim 5
Dependent Claim
81 words
In combination, a shaft having an annular indentation including a conical bottom surface, a segmented ring having a mating conical inner periphery adapted to be seated in said indentation, said segments having half-lap joints at their meeting ends, joining pins extended through the mutually overlapping ends of said segments having flanges at one end, and means for captivating said joining pins including a retaining ring secured to a radial face of said segmented ring and overlying said flanges on said pins.
Claim 6
Dependent Claim
81 words
In combination, a shaft having an annular indentation including a conical bottom surface, a segmented ring having a mating conical inner periphery adapted to be seated in said indentation, said segments having half-lap joints at their meeting ends, joining pins extended through the mutually overlapping ends of said segments having flanges at one end, and means for captivating said joining pins including a retaining ring secured to a radial face of said segmented ring and overlying said flanges on said pins.
Claim 7
Dependent Claim
28 words
The combination recited in claim 3 in which the flanges on said joining pins are received in recesses in one of the overlying surfaces of said retaining ring.
Claim 8
Dependent Claim
36 words
The combination recited in claim 3 in which said joining pins have a reduced threaded portion which extends through the retaining ring and the pins are secured by nuts on the extended ends of the pins.
Claim 9
Dependent Claim
34 words
The combination recited in claim 3 in which the joining pins comprise bolts extended through the segmented ring and the retaining ring and are secured by nuts on the threaded ends of said bolts.
Claim 10
Dependent Claim
115 words
In combination, a shaft having an annular indentation including a conical bottom surface, a segmented ring having a mating conical inner periphery adapted to be seated midway in said indentation, said segments having half-lap joints at their meeting ends, joining pins extending through the mutually overlapping ends of said segments, a retaining ring secured to one radial face of said segmented ring having a peripheral flange overlying and closely embracing the outer periphery of said segments, a second retaining ring on the opposite side of said segmented ring from said first retaining ring, and clamping bolts located about the periphery of said rings which extend through the latter and are threaded into said segmented ring.
Claim 11
Dependent Claim
115 words
In combination, a shaft having an annular indentation including a conical bottom surface, a segmented ring having a mating conical inner periphery adapted to be seated midway in said indentation, said segments having half-lap joints at their meeting ends, joining pins extending through the mutually overlapping ends of said segments, a retaining ring secured to one radial face of said segmented ring having a peripheral flange overlying and closely embracing the outer periphery of said segments, a second retaining ring on the opposite side of said segmented ring from said first retaining ring, and clamping bolts located about the periphery of said rings which extend through the latter and are threaded into said segmented ring.
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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |