The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1995
Filed:
Jul. 13, 1994
Donald F Gray, Owosso, MI (US);
Louis N Sparling, Palmetto, FL (US);
Other;
Abstract
The selective bird feeder (10) has a bird feed container (12) and a bird feed container cover (70). The bird feed container (12) has an open top (24 ) and bird feed access openings ( 32 ) . The bird feed container cover has a roof (72) and outer walls (76, 79, 80, and 82). Bird perch assemblies (84, 86) are attached to the outer walls (78, 82). A spring follower (74) with a vertical bore (94) is integral with the bird feed container cover (70). A vertical tube (48) is secured to the bird feed container (12) and extends upward through the vertical bore (94). A cap (108) is attached to the vertical tube (48) by a pin (110). A coil compression spring (68), inside the vertical tube (48), exerts a force on an adjustable lower spring abutment (50) and spring abutment surfaces (104) and (106) on radial projections (96, 98) that are integral with the spring follower (74) and extend through vertical slots (100, 102) in the vertical tube. The coil compression spring (68) normally holds the roof (72) in sealing contact with a stop surface (122) on the cap (108). A large bird or other heavy animal on the bird feed container cover (70) or the bird perch assembly (84 or 86) compresses the coil compression spring (68), moves the bird feed container cover down and covers the bird feed access openings (32).