Method for cleaning concrete delivery trucks

Details Method for cleaning concrete delivery trucks Method for cleaning concrete delivery trucks

1994-07-29

1996-04-16

Silbaugh, Jan H.

Cleaning and liquid contact with solids

Processes

Including application of electrical radiant or wave energy...

134 16, 134 221, 134 23, 134 32, 134 33, B08B 312, B08B 702

Patent

active

055078753

ABSTRACT:
Hardened concrete is removed from the drum of a concrete-transporting truck by applying strong vibrational force to the exterior of the drum. Apparatus for applying the vibration includes a vibration impact device suspended from the end of a laterally oriented holding arm. The opposite end of the holding arm is pivotably attached to a vertical post. A control arm, pivotably attached to the post has a hydraulic cylinder adapted to cause raising or lowering of the suspended impact device.

REFERENCES:
patent: 3577349 (1971-05-01), Haines
patent: 3981624 (1976-09-01), Brandon
patent: 4120699 (1978-10-01), Kennedy, Jr. et al.
patent: 4528040 (1985-07-01), Vickery
patent: 4585355 (1986-04-01), Waitzinger
patent: 4682912 (1987-07-01), Henry
patent: 4893361 (1990-01-01), Burns

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