Patent ID: 9297139
Filing Date: 2016-03-29
CPC Classification: E02D

Claim Text:
1. An anchorage for underpinning and bearing walls comprising: a head module; a brace tube coaxially joined to the head module; the head module includes: a tapered point section; a foldable blade located on each end of the tapered point section, each foldable blade includes a first end located near to the tapered point section and connected to the brace tube by a hinge, a second end located opposite to the first end and including a tab, an outer end including a reinforcement rib, and an inner end including a clamping device, the clamping device is linked to the brace tube by a bolt; the bolt includes a pin with a first end linked by a connector to the brace tube and a second opposite end a clearance drilling angled at a slant of 45 degrees, the second end being inserted in the brace tube with a bolt clamp; the bolt clamp includes a cylindrical piece with at least four perforations including two radial perforation at 45 degrees which determine the place where the bolts are inserted and two lengthwise perforations which coincide with the shape and position of the bolts; the lengthwise perforations determine the place where a clevis is inserted, the clevis includes an extractor rod that passes through the brace tube and a two arms having conical ends that are inserted in the two lengthwise perforations of the bolt clamp and in the drilling angled at a 45-degree slant that comprise the bolts.