Concrete plate, panel, wall or flooring demolition apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 1990
Grant Date -
N/A
app pub date -
Dec 5, 1988
filing date -
Dec 9, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To provide a portable demolition apparatus for concrete slabs, plates or the like, a clamping arch (1) having two end portions (12, 13) is equipped with pointed bolts (15, 16; 17, 18) at the ends; at least one (16, 18) of the pointed bolts is coupled to a cylinder-piston arrangement (21) which, upon application of high hydraulic pressure in the order of for example 800 bar, drives the pointed bolt towards the other, thus cracking the concrete plate, slab or the like between the points. Hydraulic pressure is obtained from a separately located pressure source, which permits construction of the arch of lightweight material, with an overall weight of 50 kg or less, with a jaw clearance opening of 45 cm or less, application of hydraulic force being controlled by a pilot valve-control slider arrangement (23, 24) located directly on the clamping arch and coupled to the remotely located pressure source by suitable pressure hoses.
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