Abstract: A heat sensitive cable operable over a temperature range of between approximately -20.degree. F. and 1650.degree. F. The cable includes a tubular metallic sheath which is substantially temperature resistant and moisture impervious. It also includes a mass of compacted insulation material filling the sheath and having an insulation resistance variable with temperature in the range of between approximately 100 and 50,000 ohms. The cable further includes at least one thermoelectric conductor positioned within the insulation material filling the sheath. A method of manufacturing the cable includes the step of preparing the insulation material and advancing the thermoelectric conductor through a given region. It also includes the step of advancing a strip of flat metal material past apparatus for forming and welding a tubular sheath surrounding the given region.

Abstract: A door track adapted for carrying a trolley supporting a door for rolling movement. The door track includes one or more single-piece track members having a first substantially planar surface and a pair of substantially identical spaced apart portions extending from the first substantially planar surface and forming a channel with the first planar surface. The spaced apart portions each have a substantially planar portion adjacent the first substantially planar surface to provide a plurality of flat mounting surfaces. The spaced apart portions further include inwardly curved portions extending from the substantially planar portions which are adapted to support a trolley for rolling movement therealong. The inwardly curved portions are spaced apart to freely receive a door supporting member which is secured to the trolley.

Abstract: A mouth mask includes a unitary member having an inner wall portion and an outer wall portion. The unitary member is adapted to seal about the lips of a patient with the perimeter defined by the intersection of the inner and outer wall portions resting on the perioral area overlying the maxilla and mandible. The mouth mask also includes an opening extending through the unitary member for connecting oxygen and ventilating through a mouthpiece or pharyngeal airway inserted through the opening in the mouth mask. The opening is adapted to receive an airway having a proximal end disposed externally of the patient and a distal end disposed internally of the patient in the region of the lower pharynx. Additionally, the mouth mask may selectively be provided with a nostril occluding balloon or cushion to pneumatically seal and block the nostrils of the patient.

Abstract: A bi-fold door assembly for a building. The door assembly includes an upper door section and a lower door section hinged to one another together with a door track mounted in an upwardly and inwardly inclined position. Additionally, the bottom of the lower door section cooperates with the door track for guided raising and lowering movement of the bi-fold door. The door assembly may also include an automatic opener operatively associated with the upper and lower door sections. When provided, the automatic opener may include a battery powered electrical motor together with a battery operatively associated with a solar panel for recharging thereof.

Abstract: A speaker cabinet comprising a cabinet with a resonance resistant liner. The cabinet has an opening in direct communication with a sound chamber which is designed to emit sound waves through the opening with the liner being adapted to substantially preclude any resonance in the cabinet. Specifically, the liner is adapted to reinforce the cabinet to achieve this objective.

Abstract: A high pressure sealing assembly for a device having a rotatable shaft. The assembly includes a stationary seal member associated with the device which has an opening generally conforming to the rotatable shaft, a rotatable seal member adapted to be mounted on the rotatable shaft to engage and cooperate with the stationary seal member, and a rotatable seal collar adapted to be mounted on the rotatable shaft to engage and cooperate with the rotatable seal member. With this arrangement, the rotatable seal collar cooperates with the rotatable shaft to maintain the rotatable seal member in engagement with the stationary seal member.

Abstract: A retainer for a shelf including a barrier member. The barrier member is adapted to be supported by the shelf and releasably secured to the shelf in at least two positions of adjustment including an article retaining position and an article access position. With the barrier member secured in the retaining position, articles are prevented from inadvertently falling from the shelf.

Abstract: A sealing assembly for a device having a rotatable shaft. The assembly includes a stationary seal member associated with the device which has an opening generally conforming to the rotatable shaft and a rotatable seal member adapted to engage and cooperate with the stationary seal member for effecting a seal therebetween, the rotatable seal member being adapted to be mounted on the rotatable shaft for rotational movement therewith. With this arrangement, the rotatable seal member is also adapted to engage and cooperate with the rotatable shaft for effecting a seal therebetween.