Pivotal anchoring assembly for screws and the like

• US 3,211,042 A
• Filed: 12/08/1960
• Issued: 10/12/1965
• Est. Priority Date: 12/30/1959
• Status: Expired due to Term

• Current Assignee: Artur Fischer
• Original Assignee: Artur Fischer
• Inventors: ARTUR FISCHER
• Application Number:
  US04/074,659
• Time in Patent Office: 1,769 Days
• US Class Current: 411/344
• CPC Class Codes: F16B 13/0808 by a toggle-mechanism
• CPC Class Codes: F16B 37/00 Nuts or like thread-engaging members specially shaped for rotations by a tool F16B23/00
• CPC Class Codes: F16B 37/04 Devices for fastening nuts to surfaces, e.g. sheets, plates nuts fastened behind a wall by a toggle-mechanism F16B13/0808; threaded inserts F16B37/122; measures against loss of bolts, nuts or pins F16B41/002
• CPC Class Codes: Y10S 411/965 with retainer

Claims

7. AN ANCHORING ASSEMBLY FOR RETAINING A THREADED MEMBER IN THE OPENING OF A WALL HAVING A CONCEALED SIDE, COMPRISING ELONGATED RETAINING MEANS CONSISTING OF RIGID SYNTHETIC PLASTIC MATERIAL, SAID RETAINING MEANS HAVING A LONGITUDINAL END AND FORMED WITH TRANSVERSELY EXTENDING TAPPED BORE MEANS SPACED FROM SAID END;

A SINGLE SUBSTANTIALLY RIGID ELONGATED EXTENSION OF SYNTHETIC PLASTIC MATERIAL HAVING A FLEXIBLE TERMINAL INTEGRAL WITH SAID RETAINING MEANS AT A POINT ADJACENT TO SAID BORE MEANS AND COMPRISING A ROUGHENED PORTION ADJACENT TO SAID TERMINAL, SAID EXTENSION HAVING A LENGTH EXCEEDING THE DISTANCE BETWEEN SAID POINT AND THE END OF SAID RETAINING MEANS AND BENDABLE ABOUT SAID TERMINAL INTO SUBSTANTIAL PARALLELISM WITH SAID RETAINING MEANS SO THAT IT EXTENDS BEYOND THE END OF SAID RETAINING MEANS AND THAT IT MAY BE GRASPED BY HAND DURING INTRODUCTION OF SAID RETAINING MEANS THROUGH THE WALL OPENING UNTIL THE END OF SAID RETAINING MEANS ABUTS AGAINST THE CONCEALED SIDE OF THE WALL, SAID SUBSTANTIALLY RIGID ELONGATED EXTENSION BEING SUFFICIENTLY FLEXIBLE TO PERMIT PIVOTING OF SAID RETAI NING MEANS ABOUT SAID TERMINAL TO MOVE SAID BORE MEANS INTO ALIGNMENT WITH THE WALL OPENING AND TO ENABLE A THREADED MEMBER TO BE DRIVEN INTO SAID BORE MEANS IF A PULL IS EXERTED ON SAID EXTENSION IN A DIRECTION TO WITHDRAW THE EXTENSION FROM THE WALL OPENING;

AND A SLEEVE HAVING SURFACE MEANS RECEIVABLE IN THE WALL OPENING TO ENGAGE THE SURFACE SURROUNDING SAID OPENING AND HAVING SLIT MEANS FRICTIONALLY RECEIVING THE ROUGHENED PORTION OF SAID EXTENSION SO THAT THE EXTENSION AND THE RETAINING MEANS ARE HELD AGAINST DISPLACEMENT WITH RESPECT TO SAID SLEEVE.