Railroad hopper car cross ridge collar casting
Latest Thrall Car Manufacturing Company Patents:
Description
FIG. 1 is a front elevational view of our new design of railroad hopper car cross ridge collar casting;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a side elevational view thereof, it being understood that the opposite side is a mirror image of that shown;
FIG. 4 is a sectional view thereof along the line 4--4 of FIG. 1;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
22492 | May 1893 | Brill |
1461732 | July 1923 | Hart |
2060156 | November 1936 | Wine |
3538857 | November 1970 | Mowatt-Larssen |
Patent History
Patent number: D311359
Type: Grant
Filed: Feb 18, 1988
Date of Patent: Oct 16, 1990
Assignee: Thrall Car Manufacturing Company (Chicago Heights, IL)
Inventors: Keith J. Hallam (Norcross, GA), Kenneth H. Smith (Powder Springs, GA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Melody Brown
Law Firm: Marshall, O'Toole, Gerstein, Murray & Bicknell
Application Number: 7/157,315
Type: Grant
Filed: Feb 18, 1988
Date of Patent: Oct 16, 1990
Assignee: Thrall Car Manufacturing Company (Chicago Heights, IL)
Inventors: Keith J. Hallam (Norcross, GA), Kenneth H. Smith (Powder Springs, GA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Melody Brown
Law Firm: Marshall, O'Toole, Gerstein, Murray & Bicknell
Application Number: 7/157,315
Classifications
Current U.S. Class:
Element Or Attachment (D12/42)