US3628374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic testing apparatus
Assignee: United States Steel Corp
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Filing: 1970-01-15
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Granted: 1971-12-21
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Expires: 1990-01-15
Abstract
Abstract Apparatus for ultrasonically testing a plate includes a pair of spaced-apart rails between which the plate is positioned in a horizontal plane. A crane mounted on the rails for movement therealong supports a trolley for movement transverse of the rails. The trolley carries a sonic testing wheel which contacts the top of the plate and rolls along the plate as the trolley traverses it.
Inventors
- 👤 Helmut F Laudien
- 👤 Eugene E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:12
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/26; G01N29/265
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
129 words
Apparatus for ultrasonically testing a plate comprising a pair of spaced apart parallel rails, means for supporting the plate to be tested between said rails, a crane supported on said rails for movement therealong, a trolley mounted on said crane for movement transversely of said rails, a sonic testing wheel mounted on said trolley adapted to contact the top of said plate, a pair of carriages mounted on said crane for longitudinal movement transversely of said rails, one on each side of said trolley, and a vertically adjustable platform mounted on each carriage, said carriages being adapted to be positioned to engage the longitudinal sides of said plate with their top at substantially the same level as the top of said plate so as to receive said testing wheel.
Claim 2
Dependent Claim
129 words
Apparatus for ultrasonically testing a plate comprising a pair of spaced apart parallel rails, means for supporting the plate to be tested between said rails, a crane supported on said rails for movement therealong, a trolley mounted on said crane for movement transversely of said rails, a sonic testing wheel mounted on said trolley adapted to contact the top of said plate, a pair of carriages mounted on said crane for longitudinal movement transversely of said rails, one on each side of said trolley, and a vertically adjustable platform mounted on each carriage, said carriages being adapted to be positioned to engage the longitudinal sides of said plate with their top at substantially the same level as the top of said plate so as to receive said testing wheel.
Claim 3
Dependent Claim
68 words
Apparatus according to claim 1 in which each of said platforms includes a roller mounted with its axis vertical on the end of the platform toward the other platform and its top at substantially the same level as the top of the rest of the platform, and resilient means for urging said roller toward the other platform so as to engage the adjacent longitudinal side of said plate.
Claim 4
Dependent Claim
39 words
Apparatus according to claim 2 including means for driving said crane along said rails, means for driving said trolley transversely of said rails, means for driving said carriages transversely of said rails, and means for moving said platforms vertically.
Claim 5
Dependent Claim
86 words
Apparatus according to claim 1 including a vertical tube secured to said trolley, a sleeve slidably supported on said tube, means for raising and lowering said sleeves, a carrier slidably mounted in said sleeve with said testing wheel mounted on the bottom thereof, resilient means for limiting movement of said carrier with respect to said sleeve, and a guide wheel mounted on said carrier on each side of said testing wheel, the axes of said testing wheel and said guide wheels being parallel to said rails.
Claim 6
Dependent Claim
39 words
Apparatus according to claim 1 including means for driving said crane along said rails, means for driving said trolley transversely of said rails, means for driving said carriages transversely of said rails, and means for moving said platforms vertically.
Claim 7
Dependent Claim
86 words
Apparatus according to claim 5 including a vertical tube secured to said trolley, a sleeve slidably supported on said tube, means for raising and lowering said sleeves, a carrier slidably mounted in said sleeve with said testing wheel mounted on the bottom thereof, resilient means for limiting movement of said carrier with respect to said sleeve, and a guide wheel mounted on said carrier on each side of said testing wheel, the axes of said testing wheel and said guide wheels being parallel to said rails.
Claim 8
Dependent Claim
60 words
Apparatus according to claim 5 in which said means for driving said crane along said rails includes a rotatable drive shaft extending along said crane between said rails, a motor for rotating said drive shaft, a rack adjacent each rail parallel thereto, a gear in mesh with each rack, and a drive connection between said drive shaft and each gear.
Claim 9
Dependent Claim
86 words
Apparatus according to claim 7 including a vertical tube secured to said trolley, a sleeve slidably supported on said tube, means for raising and lowering said sleeves, a carrier slidably mounted in said sleeve with said testing wheel mounted on the bottom thereof, resilient means for limiting movement of said carrier with respect to said sleeve, and a guide wheel mounted on said carrier on each side of said testing wheel, the axes of said testing wheel and said guide wheels being parallel to said rails.
Claim 10
Dependent Claim
31 words
Apparatus according to claim 7 including means for disconnecting said motor fRom said drive shaft, and a ratchet drive connected to said drive shaft for moving said crane a predetermined amount.
Claim 11
Dependent Claim
86 words
Apparatus according to claim 9 including a vertical tube secured to said trolley, a sleeve slidably supported on said tube, means for raising and lowering said sleeves, a carrier slidably mounted in said sleeve with said testing wheel mounted on the bottom thereof, resilient means for limiting movement of said carrier with respect to said sleeve, and a guide wheel mounted on said carrier on each side of said testing wheel, the axes of said testing wheel and said guide wheels being parallel to said rails.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |