US4233745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warpage gage
Assignee: Amsted Industries Inc
•
Filing: 1976-10-28
•
Granted: 1980-11-18
•
Expires: 1996-10-28
Abstract
Abstract There is provided a warpage gage for railroad wheels and the like wherein a suitable support such as a fixed plate is fitted with spacers adapted to seat against a planar surface of the wheel. A plurality of displacement gages are carried by the support, each adapted to seat against the planar surface to be gaged. The displacement gages provide an indication of the deviation of the planar surface from a true plane.
Inventors
- 👤 Thomas Ramon
- 👤 Richard O. Peck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:50
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/28; G01B7/287; G01B7/34; G01B7/345
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A warpage gage for railroad wheels and the like comprising: a generally circular, planar support means; at least three spaced spacer means affixed near the edge of said support means and adapted to seat against a generally planar surface to be gaged thereby positioning said support means at a predetermined distance from said planar surface; and a plurality of spaced displacement gages affixed near the edge of said support means, each adapted to seat against the planar surface to be gaged, each of said displacement gages generating a signal representative of the displacement thereof, said signals thereafter being utilized to determine the warpage of the planar surface.
Claim 2
Dependent Claim
107 words
A warpage gage for railroad wheels and the like comprising: a generally circular, planar support means; at least three spaced spacer means affixed near the edge of said support means and adapted to seat against a generally planar surface to be gaged thereby positioning said support means at a predetermined distance from said planar surface; and a plurality of spaced displacement gages affixed near the edge of said support means, each adapted to seat against the planar surface to be gaged, each of said displacement gages generating a signal representative of the displacement thereof, said signals thereafter being utilized to determine the warpage of the planar surface.
Claim 3
Dependent Claim
16 words
A warpage gage as set forth in claim 1 wherein said displacement gages are electrical transducers.
Claim 4
Dependent Claim
44 words
A warpage gage as set forth in claim 1 wherein each of said displacement gages include a movable foot plate adapted to rest on the planar surface to be gaged and a displacement transducer having a position sensing member engageable by said movable plate.
Claim 5
Dependent Claim
33 words
A warpage gage as set forth in claim 3 wherein each of said movable feet is provided with at least one downwardly extending tip adapted to contact the back surface of a wheel.
Claim 6
Dependent Claim
49 words
A warpage gage as set forth in claim 4 wherein each of said movable feet is provided with a plurality of said downwardly extending tips radially aligned relative to the center of said support member and each positioned to contact the back surface of a selected size of wheel.
Claim 7
Dependent Claim
27 words
A warpage gage as set forth in claim 5 wherein said plurality of tips is of increasing thickness radially outwardly of the centerline of said support member.
Claim 8
Dependent Claim
43 words
A warpage gage as set forth in claim 1 and including means for moving said support member relative to the surface to be gaged to rest said spacer members against said surface and to bring said displacement gages into engagement with said surface.
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) | 1983-11-18 | 1984-05-19 | 1984-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-18 | 1988-05-19 | 1988-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-18 | 1992-05-19 | 1992-11-18 | $7700.00 | Window Closed / Lapsed |