Abstract: An adaptive exercise apparatus which provides a variable load against which a person may exercise, monitors the performance of the person against the load by measuring the work done in a predetermined time interval, and increments to a slightly greater value when the monitored performance level reaches a desired performance objective. Instead of increasing the load when a performance objective is met, the individual may be required to work at a greater rate by maintaining the load constant, and (i) either decreasing the time within which the work is to be performed, (ii) increasing the number of exercise cycles to be completed in the same time interval, or (iii) increasing the stroke or length associated with the particular exercise being performed.

Abstract: A unitary hollow plastic screw anchor which is capable of being hammered or otherwise driven into a hollow wall, with a weakened separation plane adjacent the entrance portion which is sufficiently strong to hold together during installation in the wall, and sufficiently weak to split apart when a screw is inserted into the installed anchor. Features of the anchor include a generally cross-shaped entrance end for minimal penetration resistance, a generally rectangular interior with arcuate screw centering grooves, a single turn helix adjacent the wall-engaging flange thereof to start the screw, an internal step configuration to accommodate screws of varying diameter, and two longitudinal slots which compress during installation to further reduce penetration resistance.

Abstract: A hollow wall fastener using a conventional toggle bolt and a toggle anchor which is pointed and which has an open groove for receiving the toggle bolt. An end cap within the anchor has an internally threaded head portion and a frangible portion which allows the head portion to separate from the rest of the end cap when the end of the bolt is threaded into the head portion, thus twisting the frangible portion until it breaks. Thereafter the head portion prevents withdrawal of the toggle bolt from the anchor. The end of the groove has a threaded portion which cooperates with a threaded portion of an aperture opposite the groove to permit the anchor to pivot with respect to the bolt to a position where the bolt is threadably engaged and locked in the threaded portions of the anchor, forming a "T" configuration behind the surface of the hollow wall. Thereafter the bolt may be rotated to draw the anchor tightly against the interior of the hollow wall.

Abstract: An arrangement for enabling hooks to be secured to a slotted bar, for holding and displaying kitchen tools and accessories or other items. The slotted bar is hollow, and is selectively engaged by a hook-supporting member having a sector-shaped shank portion with a flat near the longitudinal axis of the member, with an end portion forming at least two shoulders for engaging opposite edges of the slot. The end portion is inserted at a transverse angle with respect to the slot, so that the shoulders engage the edges of the slot and the adjacent internal surfaces of the hollow bar. A cap is threaded onto the body portion to urge the shoulders into firm contact with the bar, thus retaining in position the hook or other device attached to the body portion of the member.

Abstract: A hollow wall fastener using a specially shaped or conventional toggle bolt and a toggle anchor which is pointed and which has an open groove for receiving the toggle bolt. The end of the groove has a threaded portion which cooperates with a threaded portion of an aperture opposite the groove to permit the anchor to pivot with respect to the bolt to a position where the bolt is threadably engaged and locked in the threaded portions of the anchor, forming a "T" configuration behind the surface of the hollow wall. Thereafter the bolt may be rotated, e.g. by turning a screw or fastener body, to draw the anchor tightly against the interior of the hollow wall.

Abstract: A method for making a flame retardant-water repellent coil zipper is disclosed. The method involves applying 1-20% (owg) of a flame retardant material and 1-10% (owg) of a water repellent material to the zipper coil followed by drying and curing for about 3 to about 7 minutes at about 150.degree. to about 225.degree. C., or drying for about 2 to about 4 minutes at about 120.degree. to about 150.degree. C. and then curing for about 1 to about 5 minutes at about 150.degree. to about 220.degree. C. The flame retardant material and the water repellent material could be applied together or sequentially.