Lifting arrangements for massive objects
Patent 4088361 Issued on May 9, 1978. Estimated Expiration Date: 
May 9, 1995. 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.
May 9, 1995. 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 References 3628820 Anchor insert for embedment in a concrete slab Patent #: 4018470 InventorAssigneeApplicationNo. 730007 filed on 10/06/1976US Classes:294/89, Lewises52/707, With discrete attached embedded member294/82.1HOISTLINE OR GRAB HOOKExaminersPrimary: Marbert, James B.Attorney, Agent or FirmInternational ClassB66C 001/66AbstractPockets, defined by molded plastic shells, are embedded in a massive concrete article. Lifting cables have rods to fit into the pockets. The shells which define these pockets are injection-molded to provide a lateral spline to pass a key formed on the lifting rod, and also have a parti-cylindrical end housing, closed by a snap-fitted cover plate, within which housing the key rotates to lock the rod in the socket when lift is applied to the rod.Field of SearchLewisesASSEMBLED IN SITU-TYPE ANCHOR OR TIE With feature engaging form Integral penetrating means Separate forms fastener within socket member Depending cantilevered seat portion; e.g., joist anchor Traversing-type anchor Socket type Traversing rod spaced internally of socket base With discrete attached embedded member Separate base and wall members forming socket Selective stops for element held Internal stop for head of element held Pivoted | |
