Patents by Inventor Frank L. Dahl

Frank L. Dahl 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: 4875598
    Abstract: A novel vending machine for sequentially and selectively dispensing and vending in a merchandise dispensing region each one of a plurality of substantially silimarly-shaped flat merchandise objects (usually each of substantially parallelopiped shape, such as that of a newspaper, magazine, or the like, although not specifically so limited) in an object-size-adjustable manner making it possible to quickly and easily initially adjust the apparatus to correspond to a particular thickness of depth-direction dimension of each of the merchandise objects which are to be dispensed so the dispensing apparatus is set exactly for that particular thickness of each of the similar merchandise objects; and conversely, being just as easily differently adjusted for the appropriate sequential dispensing of each one of a plurality of different merchandise objects having completely different thicknesses in each case than in the first-mentioned case; and capable of easy adjustment into any intermediate adjusted relationship suitab
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: October 24, 1989
    Inventor: Frank L. Dahl
  • Patent number: 4862757
    Abstract: An improved translatory drive linkage type of power transmission apparatus, which, in one preferred form, comprises an improved tape drive type of power transmission apparatus primarily for transmitting power applied thereto at a power entry point to a longitudinally spaced power exit point at a desired power output location.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: September 5, 1989
    Inventor: Frank L. Dahl
  • Patent number: 4756448
    Abstract: A novel vending machine for sequentially and selectively dispensing and vending in a merchandise dispensing region each one of a plurality of substantially similarly-shaped flat merchandise objects (usually each of substantially parallelopiped shape, such as that of a newspaper, magazine, or the like, although not specifically so limited) in an object-size-adjustable manner making it possible to quickly and easily initially adjust the apparatus to correspond to a particular thickness of depth-direction dimension of each of the merchandise objects which are to be dispensed so the dispensing apparatus is set exactly for that particular thickness of each of the similar merchandise objects; and conversely, being just as easily being differently adjusted for the appropriate sequential dispensing of each one of a plurality of different merchandise objects having completely different thicknesses in each case than in the first-mentioned case; and capable of easy adjustment into any intermediate adjusted relationship
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: July 12, 1988
    Inventor: Frank L. Dahl
  • Patent number: 4403208
    Abstract: Warning-signal producing apparatus and system for a first motor vehicle responsive to a vehicle-presence-indicating radio wave signal produced by and emitted from a second motor vehicle within a certain distance of the first motor vehicle for effectively causing the production of a corresponding warning signal within the interior of the first motor vehicle and, in one form, for correspondingly attenuating, muting, or interrupting sound emitted by any simultaneously operating intertainment apparatus within the first-mentioned-motor vehicle.
    Type: Grant
    Filed: April 13, 1979
    Date of Patent: September 6, 1983
    Inventors: R. W. Hodgson, Frank L. Dahl