US4701103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbomachine housing
Assignee: Sulzer AG
•
Filing: 1985-03-05
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Granted: 1987-10-20
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Expires: 2005-03-05
Abstract
Abstract The pressure cover has a plurality of radially outwardly directed teeth while the housing has a corresponding plurality of inwardly directed teeth. The cover can be inserted past the housing teeth and then rotated to bring the teeth into alignment for closing off the housing. In addition, a flange ring is provided to seal a gap between the cover and housing and the sealing means are disposed between the flange ring and the cover and housing, respectively. The sealing means can be replaced without having to detach the cover.
Inventors
- 👤 Stephen Medgvesy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:00
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/24; F01D25/26; F01D25/265; F04; F04D; F04D1/00; F04D1/06; F04D1/063; F04D29/00; F04D29/08; F04D29/086
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
In combination, a turbomachine housing an open end defining a cavity for receiving turbomachine components and a plurality of radially inwardly directed teeth circumferentially spaced at said end; a cover disposed within said open end of said housing to close said cavity, said cover having a plurality of radially outwardly directed teeth coaxially abutting said teeth of said housing; a flange ring circumferentially surrounding said cover and secured to said end of said housing; a sealing means between said ring and said housing; and an sealing means between said ring and said cover.
Claim 2
Dependent Claim
93 words
In combination, a turbomachine housing an open end defining a cavity for receiving turbomachine components and a plurality of radially inwardly directed teeth circumferentially spaced at said end; a cover disposed within said open end of said housing to close said cavity, said cover having a plurality of radially outwardly directed teeth coaxially abutting said teeth of said housing; a flange ring circumferentially surrounding said cover and secured to said end of said housing; a sealing means between said ring and said housing; and an sealing means between said ring and said cover.
Claim 3
Dependent Claim
23 words
The combination as set forth in claim 1 wherein at least some of said teeth on said cover include an axially disposed bore.
Claim 4
Dependent Claim
23 words
The combination as set forth in claim 1 wherein at least some of said teeth on said housing include an axially disposed bore.
Claim 5
Dependent Claim
104 words
In combination a turbomachine housing defining a cylindrical cavity at at least one end for receiving turbomachine components; a plurality of inwardly directed circumferentially spaced teeth on said housing at said end; a cover mounted in said housing at said end; a plurality of outwardly directed circumferentially spaced teeth on said cover in coaxial abutment with said teeth on said housing to retain said cover axially within said housing; a ring circumferentially surrounding said cover and secured to said housing at said end; a radial sealing means between said ring and said housing; and an axial sealing means between said ring and said cover.
Claim 6
Dependent Claim
104 words
In combination a turbomachine housing defining a cylindrical cavity at at least one end for receiving turbomachine components; a plurality of inwardly directed circumferentially spaced teeth on said housing at said end; a cover mounted in said housing at said end; a plurality of outwardly directed circumferentially spaced teeth on said cover in coaxial abutment with said teeth on said housing to retain said cover axially within said housing; a ring circumferentially surrounding said cover and secured to said housing at said end; a radial sealing means between said ring and said housing; and an axial sealing means between said ring and said cover.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-19 | 1991-04-20 | 1991-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-19 | 1995-04-20 | 1995-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-19 | 1999-04-20 | 1999-10-20 | $7700.00 | Window Closed / Lapsed |