Patents by Inventor Uolevi L. Lahti

Uolevi L. Lahti 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: 4760510
    Abstract: A mounting arrangement for a recessed electrical fixture includes first and second spring supports and a locator plate to secure the first and second spring supports to the fixture. Each of the spring supports includes a pair of first arms which are removably secured to the fixture via the locator plate. The spring supports further include a pair of springs for biasing a pair of second arms to rotate relative to the first arms. The pair of second arms are joined at an end opposite the springs in a support contacting end. A fixture with the mounting arrangement as described can be inserted into an aperture in the ceiling and supported by the contact between the support contacting ends and an upper surface of the ceiling. No particular preparation for mounting, other than provision of an aperture in the ceiling, is required.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: July 26, 1988
    Inventor: Uolevi L. Lahti
  • Patent number: 4485275
    Abstract: A loudspeaker includes, in an enclosure, a motor and a diaphragm coupled thereto. An inverted horn couples the surface of the diaphragm through the enclosure. The diaphragm is located in the enclosure with the center line which is parallel to but offset from a center line of the inverted horn.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: November 27, 1984
    Inventor: Uolevi L. Lahti