Patents by Inventor David C. Hayles

David C. Hayles 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: 4506964
    Abstract: A multiple imaging attachment 26 is provided to be utilized with a camera 10 to achieve desired multiple imaging and vignetting effects. The multiple imaging attachment 26 includes a housing 54 having an opening 60 formed therein. Light is transmitted through the opening 60 to a lens 12 to expose the camera film frame. A mask 64 is provided which transmits light to selected portions of the camera film frame. The mask 64 is movable in tracks 70 along a predetermined diagonal path in the housing 54 to permit exposure of second selected portions of the camera film frame. The mask 64 can then be rotated by a coupler housing 30 to permit light to be transmitted to expose third selected portions of the film frame.
    Type: Grant
    Filed: March 23, 1982
    Date of Patent: March 26, 1985
    Inventor: David C. Hayles
  • Patent number: 4423939
    Abstract: A multiple imaging attachment 30 is provided for achieving proper multiple imaging when the amount of light is changed to expose different positions of a film frame. The multiple imaging attachment 30 is coupled to a camera 10 so that an opening 60 in the multiple imaging attachment will transmit light to a lens 14 and the opening 60 and is rotatable to direct light to selected portions of the lens 14 to expose selected portions of the film frame. The mask 64 is slidably mounted to move along a predetermined path transverse to the camera lens 14 to maintain a defined relationship between the mask and the lens and compensate for the changes in light. When the amount of light is changed while exposing different selected portions of a film frame the mask is selectively moved to maintain the defined relationship between the mask and the lens thereby assuring the necessary blending and overlapping between adjacent exposures to provide proper multiple imaging.
    Type: Grant
    Filed: September 3, 1981
    Date of Patent: January 3, 1984
    Inventor: David C. Hayles