Abstract: Methods and systems are disclosed for monitoring properties of building structures (e.g., monitoring the strength and humidity of concrete structures) using sensor devices embedded in the building structures. The sensor devices collect sensor data and wirelessly transmit the data to portable computer devices operated by users.
Type:
Grant
Filed:
July 1, 2019
Date of Patent:
September 8, 2020
Assignee:
Hilti AG
Inventors:
Brendan P. Dowdall, Ryan P. Twomey, Frank Arcoleo, Mark D. Halfman, James Paris
Abstract: A plugging compound for chemical fastening technology is based on a free-radically polymerizable resin and a free-radical initiator spatially separated therefrom. The plugging compound in question is a self-supporting and storage-stable material which can be inserted in that form directly into a drill-hole.
Type:
Grant
Filed:
October 13, 1995
Date of Patent:
March 24, 1998
Assignees:
DSM Resins B.V., Hilti AG
Inventors:
Monika Moench, Peter Mauthe, Fritz Ziegert, Stefan Schwiegk