Patents by Inventor Selmer M. Loken

Selmer M. Loken 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).

  • Bird feeder
    Patent number: 5207181
    Abstract: A tube-shaped bird feeder with a tiltable perch which allows a person to control the maximum weight of a bird which can feed on the feeder by adjusting the counterweight attached to a tiltable perch. When a heavier bird alights on the perch, the perch swings down out of the way without closing the feeding openings. Once the bird flies away, the perch swings back into a feeding position so a lighter bird can alight and eat the seeds. In one embodiment a shield screens the birds view of the feeding opening. The feeders can be mounted individually or can be gang mounted on a post stand to permit multiple birds to eat at the feeder. A float located inside the feeder alerts an owner to the need to replenish the feeder.
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: May 4, 1993
    Inventor: Selmer M. Loken
  • Bird feeder
    Patent number: 5195460
    Abstract: A tube-shaped bird feeder with a tiltable perch which allows a person to control the maximum weight of a bird which can feed on the feeder by adjusting the counterweight attached to a tiltable perch. When a heavier bird alights on the perch, the perch swings down out of the way without closing the feeding openings. Once the bird flies away, the perch swings back into a feeding position so a lighter bird can alight and eat the seeds. In one embodiment a shield screens the birds view of the feeding opening. The feeders can be mounted individually or can be gang mounted on a post stand to permit multiple birds to eat at the feeder. A float located inside the feeder alerts an owner to the need to replenish the feeder.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: March 23, 1993
    Inventor: Selmer M. Loken
  • Bird feeder
    Patent number: 5105765
    Abstract: A tube-shaped bird feeder with a tiltable perch which allows a person to control the maximum weight of a bird which can feed on the feeder by adjusting the counterweight attached to a tiltable perch. When a heavier bird alights on the perch, the perch swings down out of the way without closing the feeding openings. Once the bird flies away, the perch swings back into a feeding position so a lighter bird can alight and eat the seeds. The feeders can be mounted individually or can be gang mounted on a post stant to permit multiple birds to eat at the feeder. A float located inside the feeder alerts an owner to the need to replenish the feeder.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: April 21, 1992
    Inventor: Selmer M. Loken