Daniel Brian Mcgregor

US Patent:

40446212, Aug 30, 1977

Filed:

Jun 9, 1975

Appl. No.:

5/585380

Inventors:

John C. McGregor - Springfield OH
Daniel P. McGregor - Springfield OH
James B. McGregor - Springfield OH

International Classification:

F16H 5530

US Classification:

74243R

Abstract:

Apparatus particularly advantageous for use as part of a bicycle or other chain drive assembly featuring a single plate formed to embody a plurality of drive sprockets. A preferred embodiment illustrated is comprised of a plate the central portion of which is dished and offset to a plane parallel to that occupied by an outer annular portion which embodies a set of sprocket teeth on its outer periphery. The offset plate portions are rigidly fixed in their respective positions by strip-like connectors which extend from the outer periphery of the dished portion of the plate to the inner periphery of said annular plate portion. The central dished portion of the plate is flat and has a disc-like configuration which also embodies sprocket teeth on its outer periphery, intermediate notched portions thereof from which extend the radial connector strips. Also featured is a plate-like chain guard which has a dished configuration. The dished portion of the guard plate is designed to seat to the central disc-like portion of the sprocket plate.

US Patent:

D2460971, Oct 18, 1977

Filed:

Jul 27, 1976

Appl. No.:

5/709233

Inventors:

John C. McGregor - Springfield OH
Daniel P. McGregor - Springfield OH
James B. McGregor - Springfield OH

International Classification:

D1211

US Classification:

D12123