Card reader head assembly

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Description

FIG. 1 is a perspective view of a card reader head assembly embodying our new design;

FIG. 2 is a front view in elevation of the same head assembly;

FIG. 3 is a right hand side view in elevation of the same head assembly;

FIG. 4 is a plan view of the same head assembly; and

FIG. 5 is a left hand side view in elevation of the same head assembly.

Referenced Cited
U.S. Patent Documents
3678212 July 1972 Wild
3914309 October 1975 Swensen
3914789 October 1975 Coker, Jr. et al.
Patent History
Patent number: D252683
Type: Grant
Filed: Oct 11, 1977
Date of Patent: Aug 21, 1979
Assignee: Massachusetts Bay Transportation Authority
Inventors: Edward P. Sheehan (Canton, MA), John P. Connolly (Hingham, MA), James B. King (McLean, VA)
Primary Examiner: Susan J. Lucas
Attorney: Fred Jacob
Application Number: 5/840,844
Classifications
Current U.S. Class: D14/40; D14/49
International Classification: D1402;