Patent US4299656A successfully refreshed from Google Patents.
US4299656A
Expired / Lapsed
US
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Inspection and testing device
Assignee: Kraftwerk Union AG
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Filing: 1979-07-30
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Granted: 1981-11-10
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Expires: 1999-07-30
Abstract
Abstract Device for inspecting and testing the bottom of a cylindrical reactor pressure vessel having a circular track disposed in vicinity of the bottom of the pressure vessel, including a plurality of strut members, means for connecting the strut members to the bottom of a pressure vessel, a plurality of pins extending radially outwardly from the circular track and supported in the strut members.
Inventors
- 👤 Robert Weber
- 👤 Johannes Gallwas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:01
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/003; G21C17/007; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
Device for inspecting and testing the bottom of a cylindrical pressure vessel having a circular track disposed in vicinity of the bottom of the pressure vessel and secured coaxially to the pressure vessel, comprising a plurality of strut members, means for connecting said strut members to the bottom of a pressure vessel, and a plurality of pins extending in a direction radial to the center of the circular track and supported in said strut members, said pins being fixed in said strut members against movement in a direction transverse to said pins, said pins being freely shiftable in said direction radial to the center of said circular track.
Claim 2
Dependent Claim
108 words
Device for inspecting and testing the bottom of a cylindrical pressure vessel having a circular track disposed in vicinity of the bottom of the pressure vessel and secured coaxially to the pressure vessel, comprising a plurality of strut members, means for connecting said strut members to the bottom of a pressure vessel, and a plurality of pins extending in a direction radial to the center of the circular track and supported in said strut members, said pins being fixed in said strut members against movement in a direction transverse to said pins, said pins being freely shiftable in said direction radial to the center of said circular track.
Claim 3
Dependent Claim
25 words
Device according to claim 1 including a guide plate adjustably fastened to said strut members, respectively, said pins, respectively, being seated in said guide plate.
Claim 4
Dependent Claim
19 words
Device according to claim 2 wherein said guide has a thickness smaller than the diameter of the respective pins.
Claim 5
Dependent Claim
78 words
Device according to claim 1 wherein said pins have a respective first end thereof secured in said track on a side of the respective strut members facing towards the track, and a respective second end thereof extending from the respective strut members at a side thereof facing away from the track, and including a cable guide connected to said second end of said pins, respectively, at said side of said strut members, respectively, facing away from the track.
Claim 6
Dependent Claim
36 words
Device according to claim 4 wherein at least two of said pins are located mutually adjacent, and said cable guide is spirally overlapping and has two mutually adjacent overlapping parts fastened to said mutually adjacent pins.
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) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |