Hybrid eccentric wedge anchor
Patent 5413441 Issued on May 9, 1995. Estimated Expiration Date: 
July 19, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 19, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesReusable anchor Spreading plug for anchoring in undercut boreholes Alignment device for double eccentric CAM arrangement Expansion anchor Patent #: 5211512 InventorsAssigneeApplicationNo. 094245 filed on 07/19/1993US Classes:411/55, Expander threadedly engaged by mover411/80.1, Comprising a head and expandable portions spread by fastener (e.g., drywall anchor)411/107, Member anchors bolt in substructure with threaded portion exposed (e.g., stud bolt)411/349, Securing means rotatable about fastener element or rotatably engageable by tool-rotatable headed fastener element411/999WITH RETAINER (E.G., TETHER)ExaminersPrimary: Wilson, Neill R.Attorney, Agent or FirmForeign Patent References
International ClassesF16B 013/06F16B 039/00 AbstractA hybrid eccentric wedge anchor includes a cylindrical anchor body, an eccentric wedge unit, and cylindrical leading end. The eccentric wedge unit includes a tapered body, a shoulder between the tapered body and the anchor body, and a crescent shaped clip rotatably positioned around the tapered body. The longitudinal axis of the tapered body is different from the longitudinal axis of the anchor body. The shoulder varies in width around the circumference of the anchor body. As the crescent shaped clip rotates around the tapered body, its outer circumference varies from being flush with the outer circumference of the cylindrical anchor body to extending beyond the outer circumference of the cylindrical anchor body.The hybrid eccentric wedge anchor can be configured in many useful anchor forms having the eccentric wedge unit. Examples include, but are not limited to, expansion bolt or drop-in configurations.Field of SearchExpander threadedly engaged by moverFolded blank type Expander or sleeve extruded during expansion Securing means rotatable about fastener element or rotatably engageable by tool-rotatable headed fastener element Member anchors bolt in substructure with threaded portion exposed (e.g., stud bolt) WITH RETAINER (E.G., TETHER) | |
