Abstract: An apparatus for opening and closing a portal in a structure in which a curtain having elongated side portions is placed adjacent opposing sides of the portal. A first end of the curtain is attached to a first end of the portal. An opposite end of the curtain is upturned and attached to a varying means at the first end of the portal to vary the height of a pocket formed in the curtain. Magnetic sealing means are placed on the elongated side portions of the curtain and on the opposing sides of the portal. The portal is closed as the varying means lowers the height of the pocket, wherein the magnetic sealing means on the curtain engage the magnetic sealing means on the opposing sides of the portal, thereby sealing the portal. The portal is opened as the varying means raises the height of the pocket, wherein the magnetic sealing means on the curtain disengage the magnetic sealing means on the opposing sides of the portal, thereby unsealing the portal.

Abstract: A combination garage door and roll-up curtain system that allows a flexible curtain to be lowered when the garage door is in a raised position. The system preferably comprises an automated garage door assembly wherein the drive mechanism is mounted to a bracket mounted in turn to the inside wall above the garage opening upper margin. The system preferably further comprises an automated roll-up curtain assembly having a rotatable rod mounted above the garage opening upper margin between the bracket and the inside wall. The rotatable rod has a flexible curtain wound thereabout wherein the first end of the curtain is affixed to the rod and the second end of the curtain is secured along its lateral margins within tracks mounted adjacent the garage opening lateral margins. The second end of the curtain preferably has a weighted member attached thereto to urge the curtain toward the garage opening lower margin and to keep the curtain taut.

Abstract: A vertical motion wave power generator having a flotation device, a vertical support structure fixed to the ocean bottom, and a single power shaft attached rotatably to the flotation device. By the use of a pair of one-way clutches the single power shaft converts the up and down motion of ocean waves into continuous unidirectional rotational force to drive an electric generator. The power shaft, transmission, and generator are all attached to the flotation device and move up and down in unison with the flotation device.

Abstract: A manually operated air-driven music box which will generate music at a relatively constant tempo as a user moves the music box back and fourth in opposite directions through the air. The music box has a rotatable drum cylinder to activate tone arms. A first propeller on one end of a drive axle and a second propeller on an opposite end of the drive axle rotate the drive axle as the music box is moved through the air. A gear mechanism for the drive axle rotates the drum cylinder in the same direction as the drive axle is rotated by the propellers. The first propeller is constructed to rotate in a counterclockwise direction and the second propeller is constructed to rotate in a clockwise direction.

Abstract: A structural support member for use in a roof deck system that is supported on an upper surface of a roof deck support structure. The primary embodiment comprises a substantially vertical outer segment, a substantially horizontal lower segment connected to the outer segment, a substantially horizontal upper segment connected to the outer segment, a substantially horizontal intermediate segment connected to the outer segment between the upper and lower segments, and a substantially vertical inner segment connected to the intermediate segment and the lower segment. The lower segment is secured to the upper surface of the support structure and supports a metal deck. The upper, intermediate, and outer segments form a C-shaped cavity for receiving the end of a barrier material, such as insulation or concrete, which is supported on the metal deck. The lower, intermediate, inner, and outer segments form an elongated channel that preferably has a plurality of vent holes therethrough.