Abstract: The present invention includes spring loaded elongated cylindrical perches incorporated into bird feeders, wherein the perches have typically a round perch member which, when loaded by an undesirable bird or other pest, will sense the weight of the pest and the weight will overcome the spring loaded perch and the perch will collapse at a fulcrum point thereby dislodging the bird or pest. The spring is designed to have the capability of elongating upon the application of a predetermined force being applied to the spring by means of the weight of the pest on the perch, and then the spring will elongate causing the perch to bend vertically downward with respect to the ground dislodging the pest, and when the longitudinal force on the spring is relaxed, the spring then resumes its relaxed length and draws the perch back into battery with respect to the spring housing assembly.

Abstract: The present invention includes spring loaded elongated cylindrical perches incorporated into bird feeders, wherein the perches have typically a round perch member which, when loaded by an undesirable bird or other pest, will sense the weight of the pest and the weight will overcome the spring loaded perch and the perch will collapse at a fulcrum point thereby dislodging the bird or pest.

Abstract: A cylindrical rodent repelling bird feeder 11 having an annular perch 13 around the feeder and an electric motor 33 geared to the perch. The perch is coupled to the electric motor and the electric motor is reciprocatively mounted in the bird feeder so that when a rodent 47 of excessive weight alights upon the perch the motor is pulled against a resistance spring 41 and a switch 38 is caused to close, thereby engaging the motor which rotates the perch to dislodge the rodent therefrom.

Abstract: A non-hydraulic bicycle braking system (2) is composed of a braking arrangement wherein a hand actuator is squeezed at a handle bar to effect movement of a pair of brake pads (94) against the rim (8) of a wheel (6). An actuator cable (116) is operably connected to the hand actuator and mounted to a yoke (134). The yoke is connected to a brake cable which is attached to separate arms (38) that are pivotally mounted at a pivot end (46) to brake mounting brackets (14). Each mounting bracket is separately mounted to spaced apart wheel posts (4). Each arm is pivotally mounted to a piston (68) which, in turn, has the brake pad. Although the arms move through an arc when actuated, all circular arc movements of the arm are taken up in the piston; thereby, leaving the piston to move in a straight manner without deviating in a circular movement.