Bettcher Industries, Inc.

Robert Baris

Jeffrey Alan Whited

Martin Patrick Tansey

Matthew P Dugan

A flexible drive transmission comprising a flexible drive shaft assembly having a first end connectable to a drive motor and a second end connectable to a driven implement, a tubular casing surrounding and coaxial with the drive shaft assembly, a lubricant disposed within the casing, and a lubricant-seal for blocking leakage of lubricant from the second drive shaft assembly end. The drive shaft assembly comprises a flexible elongated drive transmitting member, a first drive coupling fixed to the drive transmitting member at a first end, and a second drive coupling fixed to the drive transmitting member at the second end. The casing rotatably supports the drive shaft assembly and comprises a tubular flexible conduit, and end fitting that permanently secures one drive coupling against axial movement relative to the casing. The lubricant seal is disposed between the second end fitting and the drive shaft assembly second end for blocking leakage of lubricant from the casing as the casing and drive shaft assembly rotate and shift axially relative to each other.

Maintenance free flexible shaft drive transmission assembly

A rotary knife having a blade with an annular body rotatable about a central axis and an annular blade section projecting away from the body. The blade section comprises a first radially inner surface, a second radially outer surface and, a cutting edge defined along the projecting end of the blade section and extending about the central axis. The cutting edge defines a sinuous line extending about the central axis forming first curved segments having radii of curvature centered radially inwardly from the edge, second curved segments interposed between adjacent first segments and having radii of curvature centered radially outwardly from the edge, and a blade edge curvature inflection location between each adjacent first and second segments.

Growing community of inventors

Cleveland, OH, United States of America

Robert Baris