Patents by Inventor Raymond Bertrand

Raymond Bertrand 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: 4993217
    Abstract: A baler for forming large cylindrical bales of crop material has a baling chamber in which the crop is rolled into a bale by oppositely moving runs of side-by-side belts. A windrow of crop material is fed through an inlet of the baling chamber by a pick-up which lifts the windrow of crop and delivers the same to a feeder fork mechanism which in turn moves the crop into the inlet. Crop enters the baling chamber between a roll, over which the belts are trained, and a growing bale core. In order to reduce plugging of the crop at the inlet, the roll has discs rigidly mounted on it between neighboring belts. These discs each have an outer edge which is approximately sinusoidal in configuration and the peaks of the undulations extend outwardly beyond the thickness of the belts. The effect of the discs is both to grip the crop better and to raise the bale core slightly to provide easier access to the chamber for the crop.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: February 19, 1991
    Assignee: Deere & Company
    Inventors: Ernest Pfrimmer, Raymond Bertrand
  • Patent number: 4830341
    Abstract: The disclosure herein describes an anchor for mounting a temporary safety nce to the floor of a building under construction; the anchor includes a flat base plate adapted to be secured to the floor, an upright support member having its lower end fixedly secured centrally of the base plate and its upper end shaped to receive the lower end of a correspondingly-shaped fence upright, and a line fastener fixedly secured to the base plate for connecting thereto a safety line used by workers during construction.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: May 16, 1989
    Assignee: Institut de Recherche en Sante et en Securite du Travail du Quebec
    Inventors: Jean Arteau, Raymond Bertrand
  • Patent number: 4787475
    Abstract: The disclosure herein describes a safety fence assembly for mounting to a oor of a building under construction; it comprises guard rail structures, each formed of at least an upper rail and of a pair of uprights. Hinge elements are mounted to the opposite ends of the upper rail, at least one of the hinge elements being slidably mounted to one end of the rail. Each hinge element comprises a vertically extending pivot member which is adapted to be pivotally mounted to a post and a horizontally extending support member which includes an opening therethrough to receive the pivot member of an adjacently disposed guard rail structure. In one form of the invention, both hinge elements are movable along the upper rail while, in another form, one hinge element is fixed while the other is movable.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: November 29, 1988
    Assignee: Instit de Recherche en Sante et en Securite du Travail du Quebec
    Inventors: Jean Arteau, Raymond Bertrand
  • Patent number: 3995783
    Abstract: A forage harvester has a cylinder type cutterhead and a plurality of feed rolls that feed crop material radially into the cutterhead over a shear bar normally positioned adjacent to the cutterhead in registry therewith. The shear bar is mounted for resilient yieldable deflection when the cutterhead strikes a foreign object to a deflected position wherein it permits the tangential expulsion of the foreign object at the shear bar.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: December 7, 1976
    Assignee: Deere & Company
    Inventors: Raymond Bertrand, Claude Barbot, Robert Guilhermic
  • Patent number: 3974970
    Abstract: A cut-and-throw type forage harvester has a rotatable cutterhead including a plurality of knives having cutting edges that generate a cylinder as the cutterhead rotates. The cutterhead is mounted in a housing having an upwardly directed tangential discharge chute, which has parallel front and rear walls and converging side walls to narrow the stream of crop material discharged from the cutterhead for movement through an upwardly and rearwardly extending discharge spout or upper chute portion. The knives are mounted on the cutterhead so that their cutting edges diverge from the central portion of the knife in a forward direction relative to the direction of rotation of the cutterhead, so that the crop material impelled in a direction normal to the cutting edges is converged in the discharge chute to reduce the amount of impingement of the crop material on the converging side walls of the discharge chute.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: August 17, 1976
    Assignee: Deere & Company
    Inventors: Raymond Bertrand, Jean Tenaud, Rene Grabowski