Patent US3936217A successfully refreshed from Google Patents.
US3936217A
Expired / Lapsed
US
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Inspection port for turbines
Assignee: Westinghouse Electric Corp
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Filing: 1975-01-31
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Granted: 1976-02-03
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Expires: 1995-01-31
Abstract
Abstract An inspection port structure is provided for turbines to allow examination of interior regions of the turbine for possible damage or deleterious conditions in the flow path. A sealing member is provided in the port with spring means for locking the sealing member in place during normal operation. The sealing member can readily be removed when desired, to permit the insertion of a suitable instrument for internal inspection, and can then be easily replaced in a manner which reliably reestablishes the necessary seal.
Inventors
- 👤 Michael J. Travaglini
- 👤 Joseph F. Abbruzzesi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:22
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
In a turbine having casing means, with an inspection port, the combination comprising an elongated tubular member extending through at least a part of the casing means in alignment with an opening giving access to the interior region to be inspected, an elongated sealing member extending through said tubular member and engaging said opening in sealing relation, a closure member substantially closing the outer end of the tubular member, and spring means in the tubular member disposed to apply sealing pressure to said sealing member and to apply a force to said closure member to positively retain it in place.
Claim 2
Dependent Claim
100 words
In a turbine having casing means, with an inspection port, the combination comprising an elongated tubular member extending through at least a part of the casing means in alignment with an opening giving access to the interior region to be inspected, an elongated sealing member extending through said tubular member and engaging said opening in sealing relation, a closure member substantially closing the outer end of the tubular member, and spring means in the tubular member disposed to apply sealing pressure to said sealing member and to apply a force to said closure member to positively retain it in place.
Claim 3
Dependent Claim
44 words
The combination defined in claim 1 including inner and outer casing members, said tubular member being supported in the inner casing member and extending therethrough, and access means in the outer casing member for providing access to the outer end of the tubular member.
Claim 4
Dependent Claim
35 words
The combination defined in claim 1 in which said closure member and said tubular member have interengaging elements, and said spring means is a compression spring disposed between the sealing member and the closure member.
Claim 5
Dependent Claim
61 words
The combination defined in claim 3 in which the closure member has pins thereon extending transversely of the tubular member, and the tubular member has slots for receiving said pins, each of said slots having an entrance portion extending to the end of the tubular member and a locking portion for engagement by a pin upon rotation of the closure member.
Claim 6
Dependent Claim
37 words
The combination defined in claim 4 including access means in alignment with said tubular member in said opening, said access means permitting access to the tubular member for removal of the closure member and the sealing member.
References Cited (Backward Citations)
GB373940A
Cited
GB1100634A
Cited
US3362160A
Cited
US3841764A
Cited
US3849893A
Cited
US3845661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |