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Motor vehicle automatic transmissions — Harley-Davidson patent US2987934A (1961)

PatentUS2987934A
TypeUtility patent
Filed1959-04-01
Granted1961-06-13
InventorEdward E Thomas
SystemTransmission & clutch

“June 13, 1961 E. E. THOMAS 2,987,934 MOTOR VEHICLE AUTOMATIC TRANSMISSIONS Filed April 1, 1959 r 3 Sheets-Sheet 1 INVENTOR. a Jim, BY momiwmaml Filed April 1, 1959 E. E. THOMAS MOTOR VEHICLE AUTOMATIC TRANSMISSIONS 5 Sheets-Sheet 2 June 13, 1961 E. E. THOMAS 2,987,934 MOTOR VEHICLE AUTOMATIC…”

Full patent textDownload PDFShop transmission & clutch parts

Drawings (3 sheets)

Motor vehicle automatic transmissions — sheet 1Motor vehicle automatic transmissions — sheet 2Motor vehicle automatic transmissions — sheet 3

Parts for this system

12-6924
Clutch Release Cover Retaining Ring
$4.86
12-1317
OE Transmission Retaining Ring for Dog Ring
$5.18
14-6909
Ultima Clutch Pulley Cover Oil Seal
$5.40
12-1318
OE Transmission Countershaft End Nut
$6.00

Check fitment first — add your bike and we flag what fits.

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Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.