Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1983-01-31
1984-07-17
Burr, Edgar S.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37141R, 414722, E02F 328
Patent
active
044597681
ABSTRACT:
A bucket design is disclosed having side walls including forward leading portions which are forward of a strike plane defined by the bottom edge of the bucket and its rotation axis. The forward leading portions can contact the soil and provide a greater break out force than that available at the bottom edge. An improved wear strip design is also disclosed.
REFERENCES:
patent: 4081092 (1978-03-01), Zimmerman
patent: 4081919 (1978-04-01), Teach
patent: 4111320 (1978-09-01), Breeding
patent: 4271614 (1981-06-01), Albrecht
patent: 4329797 (1982-05-01), Shumaker
S.A.E. Standard, SAE J49 5/1978.
S.A.E. Recommended Practice, SAE J1179, approved 3/1977.
Burr Edgar S.
Cohen Moshe I.
J. I. Case Company
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