Patents Assigned to Perky-Pet Products Co.
  • Squirrel proof bird feeder
    Patent number: 6591781
    Abstract: A bird feeder which utilizes a shielding collar that behaves substantially like a universal-joint. The hollow, generally-cylindrical collar surrounds an annular food tray. The collar has a plurality of openings to provide access to the food tray, with a perch rod adjacent each opening. The collar is suspended by a spring device operative to allow the collar to simultaneously tilt, move downwardly and rotate, thus occluding the passage to food whenever the weight and agitated movements of a squirrel are brought to bear upon the collar.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: July 15, 2003
    Assignee: Perky-Pet Products Co.
    Inventor: Stewart Hardison