Abstract: An adjustable structure wherein the rim is mounted directly to a center bracket and a slide through or under the backboard. A support bracket having vertical and horizontal walls with apertures in each wall to receive fasteners to mount the adjustable structure to single or dual, horizontal or vertical support struts and systems.

Abstract: A mounting system for a direct mount basketball backboard and rim assembly that allows for independent adjustment and retention for independent adjustment and retention of the backboard to a support of the direct mount without the mounting of the basketball rim.

Abstract: A basketball goal mounting system for transmitting stresses directly to a backboard frame which includes a vertical support member to resist bowing and canting of the frame unit. The mounting system utilizes spacer elements extending through the basketball goal support, a pair of support elements on each side of the vertical support member and a rear plate for a pair of upper bolts, as well as a pair of low bolts extending through the basketball goal support, the bottom backboard frame member and the rear plate. Provision is also made for mounting the system on a central support independent of the goal mounting.

Abstract: A goal having a horizontal bracket extending below and behind a backboard is yieldably mounted at two longitudinally spaced positions to a rearly extending brace attached to the backboard frame.

Abstract: A goal having a horizontal bracket extending below and behind a backboard and mounted at two longitudinally spaced positions to a rearly extending brace attached to the backboard frame.

Abstract: In a movable basketball hoop structure, a detent of the lock mechanism rides along a rail in the unlocked position to retard the pivotal motion of the hoop. The rail also forms part of the return assembly and the compression elements of the return mechanism is interconnected to the detent to bias the detent against the rail in the locked and unlocked positions.

Abstract: A parametrically-stable microwave circuit comprises in cascade a negative resistance diode, a stabilizing network, and a complementary type filter. The complementary type filter presents a substantially constant impedance to the stabilizing network from low frequencies to the operating frequency by selectively coupling the diode microwave signals to a dummy load or to a circuit load. With its termination thus controlled, the stabilizing network may be designed to suppress spurious parametric oscillations by presenting to the negative resistance diode a predetermined impedance over a broad range of frequencies.