Concrete slab extruder with shear-action coring members

Details Concrete slab extruder with shear-action coring members Concrete slab extruder with shear-action coring members

1985-09-09

1987-06-23

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Centripetal elastic melt extruder type

425447, 425456, 425457, B28B 2152

Patent

active

046749713

ABSTRACT:
An extruder for the fabrication of concrete slabs, especially hollow-cored slabs, movable on a casting bed and incorporating a feed hopper or similar, at least one feeder, especially an auger, for generating internal pressure in the cast concrete, and at least one coring member or similar, for generating the desired slab cross-section.
The extruder in accordance with the invention comprises an assembly of at least two wedged surfaces, of which at least one is fitted in conjunction with the coring member, and the space between the surfaces is continuously changing due to a cyclic longitudinal movement, generating inside the space a compacting shear action in the concrete mix.

REFERENCES:
patent: 2748442 (1956-06-01), Butcher
patent: 3143781 (1964-08-01), Kalns
patent: 3159897 (1964-12-01), Ellis et al.
patent: 3176494 (1965-04-01), Cullen et al.
patent: 3205534 (1965-09-01), Langecker
patent: 3209404 (1965-10-01), Hagen
patent: 3877860 (1975-04-01), Putti
patent: 3909183 (1975-09-01), Hsu
patent: 3932102 (1976-01-01), Rosenbaum
patent: 3989230 (1976-11-01), Martens
patent: 4022556 (1977-05-01), Goetjen
patent: 4444702 (1984-04-01), Thomas et al.
patent: 4547142 (1985-10-01), Arenhovel et al.

Affiliated with

Also associated with

Rating

Concrete slab extruder with shear-action coring members does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Concrete slab extruder with shear-action coring members, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concrete slab extruder with shear-action coring members will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-718544