US3677097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective stops for a flexure suspended gyroscopic rotor
Assignee: Unisys Corp
•
Filing: 1971-03-05
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Granted: 1972-07-18
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Expires: 1991-03-05
Abstract
Abstract Gyroscopic apparatus having a rotor suspended by axial and radial flexure supports including a spherical shaped hub for limiting the translational deflection of the rotor with respect to a drive shaft, a plurality of leaf springs for limiting the relative angular deflection of the rotor with respect to the drive shaft and stop pins in combination with leaf springs for minimizing the relative rotational displacement of the drive shaft with respect to the rotor.
Inventors
- 👤 Thomas R Quermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:56
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/16; G01C19/18; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1293
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
In a gyroscopic device having a rotor flexibly suspended from a drive shaft, an apparatus for protecting the flexible suspension elements comprising, first limit means disposed between said rotor and said drive shaft for constraining the magnitude of translational displacement of said rotor with respect to said drive shaft, second limit means coupled to said drive shaft for controlling the magnitude of deflection displacement of said rotor with respect to said drive shaft, and third limit means secured to said rotor which coact with said second limit means to restrain within a specified range the amount of relative angular displacement of said rotor with respect to said drive shaft.
Claim 2
Dependent Claim
109 words
In a gyroscopic device having a rotor flexibly suspended from a drive shaft, an apparatus for protecting the flexible suspension elements comprising, first limit means disposed between said rotor and said drive shaft for constraining the magnitude of translational displacement of said rotor with respect to said drive shaft, second limit means coupled to said drive shaft for controlling the magnitude of deflection displacement of said rotor with respect to said drive shaft, and third limit means secured to said rotor which coact with said second limit means to restrain within a specified range the amount of relative angular displacement of said rotor with respect to said drive shaft.
Claim 3
Dependent Claim
33 words
In a gyroscopic device as described in claim 1 in which said first limit means includes hub members coupled to said drive shaft having spherical surfaces proximate spherical cavity surfaces within said rotor.
Claim 4
Dependent Claim
45 words
In a gyroscopic device as described in claim 1 in which said second limit means includes a stop spring having a plurality of leaf springs which make contact with said rotor in controlling the deflection displacement of said rotor with respect to said drive shaft.
Claim 5
Dependent Claim
44 words
In a gyroscopic device as described in claim 3 in which said plurality of leaf springs each has a thin finger section that provides a relatively small contact surface to said rotor thereby minimizing the gaseous coupling of said stop spring on said rotor.
Claim 6
Dependent Claim
49 words
In a gyroscopic device as described in claim 1 in which said third limit means includes a stop pin secured to said rotor at a location that will produce contact with said second limit means after an allowable angular displacement has occurred between said rotor and said drive shaft.
References Cited (Backward Citations)
US3081552A
Cited
US3529477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |