Dual connecting block

- AT&T
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Description

FIG. 1 is a top, front and left side perspective view of a dual connecting block showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top, front and left side perspective view of a dual connecting block showing a second embodiment of our new design with two sliding doors in the open position;

FIG. 9 is a perspective view thereof with the sliding doors in the closed position;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a right side elevational view thereof;

FIG. 12 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D258577 March 17, 1981 Bottner
4103985 August 1, 1978 Krolak et al.
4188505 February 12, 1980 O'Connor
4303296 December 1, 1981 Spaulding
Other references
  • Western Electric Connecting Block on p. 15 of Tech. Digest No. 63, Jul. 1981. AT&T Connecting Block 104A on p. 27 of Telephony, 4-14-86. Connecting Block with HTC Toll Restrictor on p. 64 of Telephony, 11-10-86.
Patent History
Patent number: D314746
Type: Grant
Filed: Mar 14, 1988
Date of Patent: Feb 19, 1991
Assignee: AT&T Bell Laboratories (Murray Hill, NJ)
Inventors: James M. Benjamin (Indianapolis, IN), Chris G. Johnson (New York, NY), Kristin E. Olson (New York, NY), William T. Spitz (Indianapolis, IN)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Joel Sincavage
Attorney: Michael A. Morra
Application Number: 7/169,182