Abstract: An improved drum construction in which sound hindering hardware is removed from the drum shell utilizing a unique tuning system that allows the drum skin to be tuned by rotating a counterhoop to bear pressure on an annular hoop securing the drum skin against a bearing rim. Rotation of the counterhoop drives the annular hoop deeper into an annular channel thereby increasing the tautness of the drum skin across the bearing rim. The bearing rim may be modified with adjustable bearing edges. The drum strainer is also removed from the drum shell and attached to the rim or counterhoop. Tone bridges and tone coats may be added to the drum shell to enhance sound production.

Abstract: An adjustable boot hanger mounting bracket assembly comprising a boot hanger frame portion and a support member portion; the ductwork components, which may include a prefabricated can-boot/mud ring assembly; a pair of boot hanger arms; and a register grille. The boot hanger mounting bracket assembly is formed of a sturdy yet bendable material so that it can be configured and adjusted on-site. Once configured, the assembly is secured to the building structure by a securing a pair of boot hanger arms to the ceiling joists, wall studs, or other support structure. In this way, the boot hanger mounting bracket, through a direct attachment to the ceiling joist or wall stud, provides a positive inexpensive simple and error free way to mount the duct components.

Abstract: The abdominal exerciser of the present invention is an exercise device designed to work the abdominal and oblique muscle groups. The abdominal exerciser includes a leg support that can slide or roll along a track and an upper body support. The abdominal exerciser device is designed to simulate an abdominal exercise “crunch” motion when the knees are brought within proximity of the upper body support.