Ball bearing swivel for a hook assembly

- K A Bergs Smide AB
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Description

FIG. 1 is a perspective view of a ball bearing swivel for a hook assembly showing my new design;

FIG. 2 is a perspective view of my ball bearing swivel for a hook assembly as seen from the rear right in FIG. 1;

FIG. 3 is a side view of my ball bearing swivel for a hook assembly as seen from the rear right in FIG. 2;

FIG. 4 is a front view corresponding to FIG. 3; and

FIG. 5 is a top plan view corresponding to FIG. 4.

Referenced Cited
U.S. Patent Documents
224738 February 1880 Skinner
D241814 October 1976 Fredriksson
2661232 December 1953 Long
2980400 April 1961 Long
3278163 October 1966 Marks et al.
Patent History
Patent number: D251770
Type: Grant
Filed: Jun 22, 1977
Date of Patent: May 8, 1979
Assignee: K A Bergs Smide AB
Inventor: Lars Fredriksson (Vaxjo)
Primary Examiner: A. Hugo Word
Attorney: William D. Denson
Application Number: 5/808,824
Classifications
Current U.S. Class: D/8367; D/8355
International Classification: D0808;