Brushing – scrubbing – and general cleaning
Patent
1977-11-11
1979-03-13
Bonck, Rodney H.
Brushing, scrubbing, and general cleaning
85 73, 85 83, 151 4173, 151 4174, F16B 1306
Patent
active
041435796
ABSTRACT:
One piece metal insert adapted to be embedded in a cavity in a work piece embodies a sleeve portion and a nut portion joined together by a frangible connection. The sleeve portion has an internal diameter which is less than a zone of maximum diameter on the nut portion and is adapted to be moved into a telescoping position about the nut portion so as to be expanded by the nut portion and forced into firm engagement with the side walls of the cavity in the work piece. The sleeve portion has splines on the exterior thereof which are inclined with respect to the longitudinal axis of the insert so that when they are embedded in the side walls of the cavity they will establish a positive connection with the work piece and resist axial movement of the sleeve portion with respect to the work piece. The nut portion of the insert has ribs on the exterior thereof in a zone of maximum diameter so that when the sleeve portion of the insert is forced into a position wherein it surrounds the nut portion the ribs will cut into the inner surface of the sleeve portion and establish a positive connection therewith.
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Bonck Rodney H.
Kane John J.
Sperry Albert
Yardley Products Corporation
Zoda Frederick A.
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