Patents by Inventor Walter J. Koinzan

Walter J. Koinzan 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: 3948114
    Abstract: A roller link chain for driving connection between a pair of sprocket wheels is provided and adjacent connecting link pivot shafts, spaced apart by one or more pivot shafts spaced therebetween, utilized to pivotally interconnect adjacent links of the chain include corresponding end portions which project outwardly of the same side of the chain. A slightly stretched expansion spring extends between and has its opposite end portions anchored to the outwardly projecting ends of the adjacent pivot shafts, whereby the spring will buckle the portion of the chain extending between the pivot shafts to which the spring is attached when the spring is moving along a "slack" reach of the chain. In this manner, excessive slack of the chain normally associated with the slack reach thereof will be taken up so as to reduce the running noise of the chain and the tendency of an otherwise excessively loose chain to jump one of the sprockets with which it is associated.
    Type: Grant
    Filed: April 29, 1975
    Date of Patent: April 6, 1976
    Inventor: Walter J. Koinzan