Patents by Inventor Edgar A. Lafreniere

Edgar A. Lafreniere has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for separating articles
    Patent number: 4402411
    Abstract: An apparatus (10) for separating articles is disclosed. Apparatus (10) includes a frame (16) having upper and lower portions (24, 26) yieldably separated by compression springs (28). Belts (90) extend between drive rollers (30) supported by upper frame portion (24) and driven rollers (42) supported by lower frame portion (26). A plurality of longitudinal members (88) are attached to each shaft (86) of driven rollers (42). Mud which might otherwise plug an eliminator is removed from belts (90) as they variably flex in passing about driven rollers (42).
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: September 6, 1983
    Inventor: Edgar A. Lafreniere