Title: Excavating wheel with cam assisted bucket wall ejector

Abstract: An excavating and loading system is disclosed which includes a vehicle with an excavating wheel assembly at the front. This wheel assembly includes plural excavating wheels each comprising a plurality of digging buckets having a wall supported for pivotal movement between a material receiving position and a material dumping position. A spring is connected to each movable wall for normally positioning the wall in the material receiving position. A cam mounted on each movable wall is engaged by a mechanism fixedly supported at a point offset from the rotational axis of the excavating wheel to pivot each movable wall to the material dumping position against the action of the spring associated therewith.

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Inventors: Satterwhite, Charles L. (Dallas, TX, US)

Application Number: 904383
Filing Date: 1978-05-10
Publication_date: 1979-07-31
Assignee: Unit Rig & Equipment Co. (Tulsa, OK)
Primary Class(es): 37/190 37/901
Other Classes:
US Patent Ref:

857396	Jun, 1907	Hammond	37/DIG.
1336657	Apr, 1920	Schmidt	37/189.
1434601	Nov, 1922	French	37/DIG.
1455206	May, 1923	Howe et al.	37/97.
1516428	Nov, 1924	Handley	37/189.
1858327	May, 1932	Hays	37/190.
2528012	Oct, 1950	Mensforth	37/190.
2748505	Jun, 1956	Turner	37/96.
3230647	Jan, 1966	Gates	37/190.
3390473	Jul, 1968	Wilms et al.	37/190.
3500563	Mar, 1970	Smith	37/190.

Other Refs: 992676137833

May, 1965	GB
Oct, 1956	SU

Primary Examiner: Eickholt E. H.
Assistant Examiner:
Attorney: Richards, Harris & Medlock