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US 4,492,478 AGranted
Method and apparatus for applying mortar or concrete
AssigneesYasuro Ito, Taisei Corporation
InventorsYasuro Ito, Yoshiro Higuchi, Masanori Tsuji, Yasuhiro Yamamoto, Hiroshi Tada, Kenji Kuroha, Takashi Nakamura, Koichi Tomikawa
Life of this patent
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Abstract
One of ingredients of green concrete are supplied to a rotary disc through a central tube by a pump or low pressure air and the other ingredient is supplied to the rotary disc from a hopper by a screw conveyor. These ingredients are mixed together on a rotary disc and then projected by centrifugal force.
Claims11
Apparatus for projecting mortar or concrete comprising:
- a first material supply pipe for conveying under pressure said first material, one of ingredients of said mortar or concrete;
- a hopper charged with second material, the other ingredient of said mortar or concrete;
- a second material supply pipe connected to said hopper;
- a rotary screw disposed in said second material supply pipe for mechanically conveying said second material supplied from said hopper;
- and
- a rotary disc for admixing said first and second materials conveyed through said first and second material supply pipes to project a resulting mixture;
- said first and second material supply pipes and said rotary disc being arranged coaxially and said first and second material supply pipes being arranged concentrically.
4 more elements
Dependencies are inferred from the claim text.