US Patent 7448172 Wall base plate to concrete anchoring system

A wall anchoring system is used to secure a stud wall to a foundation of a building. An anchor has an open bottom for receiving a connector which threadably receives an anchor bolt and an open top that is covered by a removable seal tab, the seal tab having a depth gauge to control the level of anchor bolt insertion. A clip is attached to the anchor and is used to secure the device to a concrete block header prior to foundation pour. Once the foundation is poured, the seal tab is removed, either by being detached along a frangible connection or by being punctured in order to expose the open top of the anchor. A securement bolt is passed through the base plate of the stud wall and is received within the anchor.