US4149824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade containment device
Assignee: General Electric Co
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Filing: 1976-12-23
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Granted: 1979-04-17
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Expires: 1996-12-23
Abstract
Abstract A device is provided for containing blades of rotating turbomachinery comprising a high-strength ring supported in radial spacial relationship over the blade tips by means of a stationary support structure. The ring is supported in such a manner that it is capable of spinning with respect to the support structure when acted upon by a predetermined blade force.
Inventors
- 👤 Arthur P. Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:28
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/04; F01D21/045; F01D21/006; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/219
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
66 words
A device for containing blades of rotating turbomachinery comprising: a high-strength ring for surrounding in radial spacial relationship a stage of rotatable turbomachinery blades; and support means disposed generally outwardly of said ring for supporting said ring in a manner such that when the rotating blades contact said ring blade rotational energy is absorbed by imparting spin to said ring with respect to said support means.
Claim 2
Independent Claim
66 words
A device for containing blades of rotating turbomachinery comprising: a high-strength ring for surrounding in radial spacial relationship a stage of rotatable turbomachinery blades; and support means disposed generally outwardly of said ring for supporting said ring in a manner such that when the rotating blades contact said ring blade rotational energy is absorbed by imparting spin to said ring with respect to said support means.
Claim 3
Dependent Claim
30 words
The device as recited in claim 1 wherein said ring is faced with a layer of relatively low density rub material in close proximity over the tips of the blades.
Claim 4
Dependent Claim
30 words
The device as recited in claim 1 further comprising retaining means to hold said ring fixed with respect to said support means until acted upon by a predetermined blade force.
Claim 5
Dependent Claim
15 words
The device as recited in claim 3 wherein said retaining means comprises a shear pin.
Claim 6
Dependent Claim
44 words
The device as recited in claim 1 wherein said support means includes a cavity formed therein for receiving said ring, and wherein said device further comprises retaining means to hold said ring fixed within said cavity until acted upon by a predetermined blade force.
Claim 7
Dependent Claim
28 words
The device as recited in claim 5 further comprising first spacer means disposed within said cavity between said ring and said support means for establishing a clearance therebetween.
Claim 8
Dependent Claim
18 words
The device as recited in claim 6 wherein said first spacer means is of the energy-absorbing, low-density variety.
Claim 9
Dependent Claim
27 words
The device as recited in claim 7 wherein said first spacer means includes a plurality of radial webs extending substantially between said ring and said support means.
Claim 10
Dependent Claim
15 words
The device as recited in claim 7 wherein said first spacer means includes honeycomb material.
Claim 11
Dependent Claim
29 words
The device as recited in claim 6 further comprising second spacer means disposed within said cavity between said ring and the turbomachinery blade tips for establishing a clearance therebetween.
Claim 12
Dependent Claim
30 words
The device as recited in claim 10 wherein said second spacer means carries a layer of relatively low-density rub material in close proximity over the tips of the turbomachinery blades.
Claim 13
Independent Claim
49 words
A device for containing blades of rotating turbomachinery comprising a high-strength ring supported in radial spacial relationship over a stage of rotatable turbomachinery blades by support means, and wherein said ring is capable of spinning with respect to said support means when acted upon by a predetermined blade force.
Claim 14
Independent Claim
49 words
A device for containing blades of rotating turbomachinery comprising a high-strength ring supported in radial spacial relationship over a stage of rotatable turbomachinery blades by support means, and wherein said ring is capable of spinning with respect to said support means when acted upon by a predetermined blade force.
Claim 15
Independent Claim
56 words
A device for containing blades of rotating turbomachinery comprising a high-strength ring carried in radial spacial relationship over a stage of rotatable turbomachinery blades by support means which permit said ring to spin when contacted by the rotating blades such that the blade rotational energy is absorbed primarily by said ring instead of said support means.
Claim 16
Independent Claim
56 words
A device for containing blades of rotating turbomachinery comprising a high-strength ring carried in radial spacial relationship over a stage of rotatable turbomachinery blades by support means which permit said ring to spin when contacted by the rotating blades such that the blade rotational energy is absorbed primarily by said ring instead of said support means.
Claim 17
Dependent Claim
55 words
In a method of containing blades or rotating turbomachinery, the steps of: surrounding in radial spacial relationship a stage of rotatable turbomachinery blades with a high-strength ring; and supporting said ring in such a manner that said ring is free to rotate when acted upon by a predetermined blade force, thereby absorbing blade rotational energy.
Claim 18
Dependent Claim
55 words
In a method of containing blades or rotating turbomachinery, the steps of: surrounding in radial spacial relationship a stage of rotatable turbomachinery blades with a high-strength ring; and supporting said ring in such a manner that said ring is free to rotate when acted upon by a predetermined blade force, thereby absorbing blade rotational energy.
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) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |