Patents by Inventor Bert Y. Dubé

Bert Y. Dubé 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).

  • Patent number: 6644465
    Abstract: In industrial belted conveying systems, it is common to have a pull chord extending longitudinally along the conveyor, sometimes one chord on each side of the conveyor, said chord being attached to a trip mechanism, or safety switch. A number of serious accidents have occurred in the industry due to unprotected nip points at the return idlers under these conveyors. Accidents were the result of these pull chords not being easily accessible for manual activation of the safety features. In this invention, a primary pull chord is placed near the nip point, inserted through guides, and linked to one or more secondary longitudinal pull chord(s). The primary pull chord may be sleeved with a semi-rigid, pliable rod as additional support between the guides. Further, this semi-rigid rod may be encapsulated in a lightweight foamy tube to give it bulkiness.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: November 11, 2003
    Inventor: Bert Y. Dubé