Abstract: This compact lunch box consists of a collapsible carrier body and a collapsible lower casing both having walls made of a thermal insulative material. In the erected state, the lower casing may be removably mounted with a plurality of mounting webs at the bottom side of the carrier body for containing food and beverage. A thermal pack is provided in a well located within the carrier body for maintaining the food and beverage in a low healthy temperature. In the collapsed state, the lower casing can also be conveniently mounted at the bottom of the carrier body to form a compact assembly which can be stored in a briefcase or a school bag.

Abstract: This system is a flexible bags mounting and dispensing system which has two equal length mutually parallel articulated arms hingedly mounted together at their front end by a cross member. Each articulated arm consists of three section members hingedly coupled together. A flexible bag can be mounted to the articulated arm through tubes or pipings provided at the edge portion of its opening. The bag can be opened for filling operation by pulling the middle section members of the articulated arms away from each other, and the bag can be kept in a closed condition by pushing the articulated arms back to their parallel condition.

Abstract: An elongated welding electrode wound on a dispensing spool and having a plurality of welding current conduction terminals is shown. The electrode has a plurality of transverse grooves formed therein and the grooves are filled with a soft metal substance to form conductive strips. The top plate of the spool has a plurality of arms covering over the conductive strips and has conductive terminals therein contacting the conductive strips in the electrode for supplying the welding current in maximum efficiency to the electrode in the welding operation.

Abstract: A master transceiver and a slave transceiver are employed for providing an accurate measurement of the distance between two locations in which these transceivers are situated. A pulse signal is generated by the master transceiver, which requires a time period of t1 to travel to the slave transceiver. After a time delay of t2 upon the receipt of the pulse signal by the slave transceiver it transmits a response signal back to the master transceiver. The response signal requires the same time period of t1 to be received by the master trasnceiver. The total time involved is compared with a reference time to distance circuit in the master transceiver to determine the distance between the two units and the distance is shown on a digital display.

Abstract: An apparatus for light curing of an adhesive resin coating on a continuous string-like linear product is shown. It consists of an elongated chamber having a light reflective inner side wall and removable end caps. The product coated with the adhesive resin is passed through the chamber through transverse slots formed in the end caps. The ultraviolet curing light is injected into the chamber by a light guide inserted through the peripheral side wall. Nitrogen gas may be also passed through the chamber to enhance the curing process of the resin.

Abstract: The bidirectional rotation device comprises a direct current motor connected in series with a capacitor and a reversible switching means. When a direct current voltage is applied to the series-connected combination of direct current motor and capacitor through the switching means in one position, the charged capacitor causes the motor to rotate in one direction for a short period of time; and when the voltage is again applied to the combination in the reversed polarities, the reversely charged capacitor will cause the motor to rotate in the reverse direction.

Abstract: This rescue administration aid device is a portable unit which may be worn on a rescuer's wrist. It is operative in response to parameter entries by the rescuer according to the victim's condition to provide sequential procedural displays of medical standard rescue steps for assisting the rescuer in carrying out the correct rescue operation. The standard rescue procedure is stored in a microprocessor which, if necessary, can be re-programmed to update to a new rescue standard procedure. It includes a recall feature operative for reverse searching of any desired step in the display if the condition of the victim changes during the rescue operation. Additionally, distinct tone signals are emitted at selected steps of the rescue operation procedure to assist the rescuer in memorizing and conducting such steps in the rescue.

Abstract: The compact combination oral suction and scavenging apparatus can be operated simultaneously or separately for oral suctioning and expired anaesthetic gases scavenging of a patient under sedation. It includes a main shut off valve for turning the entire apparatus on or off, and a separate shut off valve which can be operated selectively to disable the scavenger portion of the apparatus. A safety relief valve prevents sub-atmospheric or excessively high pressures from building up in the apparatus to affect the normal breathing pattern of a patient. The expiratory valve of the scavenging assembly is housed in a disposable chamber having a disposable transparent snap-on dome shaped cover such that the expiratory valve can be readily monitored visually, and the cover can be easily and quickly removed for manual manipulation or adjustment of the expiratory valve by the anaesthetist.

Abstract: This coupling device is for coupling a light guide such as a light wand to a light source for photocuring purposes. It enhances the curing ability of the photocuring system at lower wavelength of light while at the same time provides thermal isolation between the lamp housing and the light wand.

Abstract: A remote-controlled system for igniting a gas barbeque unit and the like is shown. The system controls the gas flow to the pilot lighter and the burner of the barbeque unit, and generates a spark to ignite the pilot lighter and in turn the burner. The system will automatically shut off when the pilot lighter is accidentally extinguished so as to prevent gas leakage to cause any explosion. The system may be operated by a low voltage 9-volt battery.

Abstract: A system for securing a bed sheet to a waterbed is shown. The system consists of eight hook-shaped brackets and a flat sheet having resilient loops provided at its corners. A pair of the brackets are provided at each adjacent corners of the bed frame of the waterbed and positioned just above the mattress and below the rail caps. The sheet can be quickly and easily secured to the brackets by pushing the resilient loops of the sheet towards the bed frame corners until they engage with the associated brackets to secure the sheet in place over the mattress. The sheet is retained in place and it is independent of any inherent movements in the mattress during use.

Abstract: A contour tracer particularly useful for floor tiles installation is shown. It consists of a plurality of elongated section members having an identical shape and construction and slidably coupled together. Each section member consists of a single integrally formed element comprises a cylindrical portion and a sheath portion joined together by a web portion. The sheath portion has a C-shaped cross section with an opened slot formed on the side directly opposite to the cylindrical portion. The section members are coupled together by engaging the sheath portion of one section member to the cylindrical portion of the next section member. The tracer can be used on uneven surfaces and in space restrictive areas.

Abstract: An ultrasonic remote controlled switching device having very low power consumption is shown. The device is capable of switching high power and/or generating a power pulse for operating associated electrical control devices. The switching device responses to ultrasonic wave generated by a remote hand-held transmitter unit to change its state from ON to OFF or vice versa and simultaneously generates the desirable power pulse. The remote switching device is suitable for use in remotely controlling the operation of a natural gas fireplace.

Abstract: A method and adaptor for installing a flue liner in a fireplace chimney in the installation of a fireplace insert is shown. The adaptor can be slidably mounted on top of the firebox of the fireplace insert with two slider brackets mounted on top of the firebox. The adaptor has a sleeve therein for coupling to the flue liner. The flue liner can be conveniently installed by first inserting it into the chimney with its lower end connected to the sleeve. The adaptor is then slidably mounted to the firebox by slidably engaging with the two slider brackets while the firebox is being inset into the fireplace.

Abstract: The fireplace has a coaxial vent directly venting the exhaust gas through its top. The fresh air is directed through an outer jacket of the coaxial vent to a chamber located between the firebox and the rear panel and enters into the lower portion of the firebox while the exhaust air is conducted through the inner coaxial duct, located inside the fresh air duct, to be released to the outdoor. Residual heat in the exhaust gas is inherently recycled by the fresh air being drawn into the fireplace to enhance combustion and to increase the efficiency for heating purposes.

Abstract: The pedestal is particularly suitable for housing cable television signal distribution outdoor equipment. It has a self-supporting base having a truncated pyramidal shape and a horizontal lower flange, which can be installed firmly and securely on the ground easily and quickly without the use of additional anchoring devices. The divergent base also provides inherent additional space for storing extra cable for future re-coring and changing equipment, and a plurality of the base units as well as a plurality of top cover units may be stacked together for maximum utilization of the shipping and storage space.

Abstract: A fireplace provided with a sound reducer is shown. The sound reducer eliminates ambient noise feeding back to the indoor through the flue system of the fireplace.

Abstract: A burner assembly suitable for use in the fireplace is shown. The burner is operative with either natural gas or propane gas to produce a flame pattern closely resembles to that of a natural wood log fire yet there is virtually no formation of carbon monoxide gas in the exhaust.

Abstract: A gas burner assembly for a fireplace is shown. The assembly is operative to produce a flickering yellow flame pattern which closely resembles to that produced by a natural wood log fire, yet there is virtually no formation of carbon monoxide gas in the ignition. The assembly generally comprises four artificial logs arranged in a predetermined spaced relationship to a gas burner. The gas burner consists of a rectangular opened top casing having distribution means for emitting a gas and air mixture through its top. The artificial log comprises a flexible metal tube wrapped with a ceramic fibre blanked which is impregnated with a colloidal compound and thermally cured. The surface of the log is textured and painted to simulate the appearance of a natural wood log. Flame deflectors are provided either above or in the burner to baffle direct flame impingement on the logs so that the flames rise to a relatively high level above the logs to provide a full visibility of the flame in the fireplace.