Abstract: An article of manufacture for use in dental hygiene is disclosed. The device provides a leader, to which there is attached a thicker "mop" which can be comprised of a plurality of individual string members. The string members can be abrasive to enhance cleaning action. The several string members which form the "mop" would preferably have some absorbent quality in order to retain a desired therapeutic aid such as fluoride or the like. The strings could be alternatively fluoride impregnated. In use, the leader is first passed between gaps in the teeth until the "mop" portion contacts the gap. Sliding action of the abrasive mop between the teeth removes undesirable plaque and massages the gums. In the method of the present invention, individual thread members are added to the leader so that as many strings are placed between the teeth as possible without causing discomfort and the space between the teeth can be filled.

Abstract: A high fidelity playback system is described using a plurality of speakers in conjunction with a conventional stereo system and an auditory interface unit which provides improved high fidelity playback. The system includes for example, two front high fidelity speakers in the normal stereophonic position, and a second pair of high fidelity speakers placed on an axis defined by the ears of the listener. The amplifier feeds the front speakers directly. The interface unit attenuates the left and right channel signals according to the inter-channel signal level differential, and distributes them in proper proportion to the second pair of speakers to create full stereophonic realism with enhanced depth perception and positioning of the original sound sources.Alternatively, only two speakers are used.

Abstract: A framing bracket for use in forming wall to wall connections such as "Tee" and "Corner Post" connections in for example house building using wooden building studs and sheet wall construction is comprised of a rectangular base member having a pair of side walls each, side wall connected along a portion of the base plate length. The side walls extend to the approximate central portion of the rectangular base member and provide respectively a pair of connected stop plates which are inwardly depending. The stop plates in combination with the side walls and a portion of the rectangular base plate member form a first partial enclosure for receiving the tip of a conventional building stud thereinto for connection by means of nails or the like. Typically, the upper or lower longitudinal stud of a framed stud wall will occupy this first partial enclosure during a "Tee" or "corner post" connection. (See FIGS. 5 and 6).

Abstract: An improved life vest with an accompanying safety harness is comprised of a life vest body which body is provided with a pliable cushion member mountable about the torso of the wearer. An elongated flexible strap member is secured about the outer surface of the cushion member. One end portion of the strap member is provided with a slipping type buckle (such as a pair of D-rings). The opposite end portion of the strap member is supplied with a suitable connection member such as a hook. There can be further provided a stop member on the strap which limits the degree of constriction which can be achieved by the strap about the vest. Alternatively, the stop could be ommitted, and extra padding in the life vest body utilized to prevent injury to the wearer during constriction of the device.

Abstract: A tray feeder including a corrugated sheet folding apparatus for rapidly feeding a plurality of corrugated sheets stored in a gravity hopper attached to the apparatus and folding the sheets into a tray shape for reception of cans or other goods, the feeding and folding of the sheets being done in a continuous, smooth and rapid flow (as opposed to the intermittent flow of the tray feeders of the prior art). The corrugated sheets are stacked in the hopper in such a manner that the upper portion of the foremost sheet is overhung in relation to the central and lower portion of the same sheet with the overhung stacking of the sheets causing the foremost sheets to separate at the upper portion thereof thereby breaking the vacuum between the upper portions of the sheets.