Filler injector for filling cracks in concrete

Details Filler injector for filling cracks in concrete Filler injector for filling cracks in concrete

1991-03-19

1993-02-16

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Product or preform repair or restoring means

52514, 156 94, 264 36, 425 13, 425555, 425563, B29C 4517

Patent

active

051869497

ABSTRACT:
The present invention relates to a filler injector for applying a filler to crevices in concrete surfaces. The injector has a transparent outer tube having scale markings thereon to indicate the pressure of any filler backing up from the surface and an adaptor connectable to a pressurized source of filler and screwed onto the outer tube. The injector also includes a check valve mounted in the adapter, an inner tube mounted inside a closed top of the outer tube and having a bore therein which can convey the filler from the adaptor to the surface, and a piston slidably mounted inside the outer tube and on the inner tube. The filler injector thus will not result in unwanted explosion, implosion, or skipping of a seam joint because of the pressure of the filler, and will provide a reading of the filling pressure on the concrete surface as the filler is being applied.

REFERENCES:
patent: 4430841 (1984-02-01), Yamaguchi et al.
patent: 4555286 (1985-11-01), Orikasa et al.
patent: 4622085 (1986-11-01), Yamada et al.
patent: 4861401 (1989-08-01), Miura et al.
patent: 4986862 (1991-01-01), Matsufuru

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