Machine for casting concrete members

Details Machine for casting concrete members Machine for casting concrete members

1981-04-27

1983-01-18

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

425 64, 425120, 425219, 425224, 425456, B29D 702

Patent

active

043691536

ABSTRACT:
A machine for casting concrete panels. The machine disclosed casts hollow core concrete panels in a single casting operation utilizing a slipform technique to fill cores with core material which can be dumped from the core after curing of the concrete has been accomplished. Vibration of the slipform during casting facilitates free flow of concrete around the slipform and core material extruded from slipforms. The slipform has a closed front portion which is tapered to a reduced cross section. The machine utilizes a casting pallet employing improved side form cleaning apparatus. The machine also includes improved finishing screeds for applying decorative three-dimensional finishes on the top surface of cast panels.

REFERENCES:
patent: 1891626 (1932-12-01), Mortimer
patent: 2039204 (1936-04-01), Young
patent: 2655708 (1953-10-01), Eschenbrenner
patent: 3217375 (1965-11-01), Kinnard
patent: 3523343 (1970-08-01), Mitchell
patent: 3775529 (1973-11-01), Steenson et al.
patent: 3799714 (1974-03-01), Vetovitz
patent: 4131670 (1978-12-01), Abate
patent: 4280800 (1981-07-01), Bunn
Abandoned Patent application Ser. No. 129,214, filed Aug. 2, 1961, (parent to Kinnard U.S. Pat. No. 3,217,375).
Abandoned Patent application Ser. No. 50,351, filed Aug. 18, 1960, (parent to Kinnard U.S. Pat. No. 3,217,375).

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