Abstract:
A liquid metered dispensing squeeze bottle includes: (a.) a squeezable container having an opening for dispensing liquid therefrom at one end and a bottom at the other end; (b.) a non-flexible trap chamber of a predetermined volume, connected to the opening of the container; (c.) a dip tube; (d.) a one way valve at the bottom of the dip tube; and (e.) a brush connected to the dispensing end of said trap chamber.
Abstract:
A load control circuit having an overload circuit capable of protecting a switching element from overload conditions over a wide range of operating conditions. The overload circuit limits the maximum average power dissipation of the switching element in accordance with a comparison of an average voltage across the switching element over a half-cycle and a variable threshold. The variable threshold is determined based on an ON-state resistance of the switching element and the environment in which the switching elements are operating. The variable threshold accounts for the squared term (V2 or I2) in determining power dissipation and allows power to be determined based on average voltage.
Abstract:
A pump sprayer having a lock slidably mounted on the plunger head for locking the pump sprayer against reciprocation within a sleeve on a closure provided for mounting the sprayer to a container. The lock has a body with a rear portion, a cap portion, a pair of arms with flanges and a stop projection. The arms define springs in one embodiment for engaging a portion of the pump sprayer and providing a restoring force that enables the locking mechanism to be self-resetting to a locked position. The body is capable of being moved by the operator of the pump sprayer within the peripheral outline of the plunger head. When in a forward position, the lower edge of the rear portion of the lock is disengaged from an upper edge of the sleeve placing the pump sprayer in an unlocked position. When the projection is released and the plunger head is reciprocatingly restored to an upright position, the lower edge of the rear portion automatically engages the upper edge of the sleeve of the pump sprayer preventing plunger head reciprocation and the biasing means automatically forces the lock into a rearward, locked position on the plunger head thus rendering the pump sprayer self-resetting and child-resistant. In another embodiment the lock is a shipper lock which does not reset from its locked position.
Abstract:
A nasal pump sprayer having a folding actuator that can be used as a dust cover, finger grip and shipping clip. The folding actuator has a pair of wings that are hingedly connected to the pump body of the nasal pump sprayer and which can be locked in a closed position and used as a cover and shipping stop. The wings may also be opened to a lateral position and used as finger grips for actuating the nasal pump sprayer. Each wing has a locking means at one end for snap-locking the wings together and a hollow interior that is complementary in shape to the nozzle of the sprayer. An immobilizing means extends from the connected end of each wing and engages a confronting edge of the pump body thus locking the plunger head of the nasal pump sprayer against reciprocation for storage and shipping.
Abstract:
An electrical control device for controlling the status of a controlled electrical device, the electrical control device comprising a power conducting semiconductor device for controlling the status of the controlled electrical device; a control circuit; a transmitter and/or receiver in communication with the control circuit; and an antenna coupled to the transmitter and/or receiver; the antenna adapted to receive a first signal at a specified frequency from a remote control device and/or transmit a second signal at a specified frequency to a remote control device; wherein the transmitter is operable to couple the first signal from the antenna to the control circuit for remotely controlling the controllably conductive device and/or couple the second signal from the control circuit for providing a status of said controlled electrical device, the antenna comprising a first loop of conductive material having a capacitance and an inductance; the capacitance and the inductance forming a circuit being resonant at the specified frequency; a second loop of conductive material having two ends adapted to be electrically coupled to a control circuit, the second loop being substantially only magnetically coupled to the first loop; the first and second loops each having a loop axis, the loop axes of the first and second loops being substantially parallel or coincident.
Abstract:
An antenna operable to transmit or receive radio frequency signals at a specified frequency, the antenna comprising a first printed circuit board comprising a first loop of conductive material having a capacitance and an inductance, the capacitance and the inductance forming a circuit being resonant at the specified frequency; and a second printed circuit board comprising a second loop of conductive material having two ends adapted to be electrically coupled to an electronic circuit, the second loop being substantially only magnetically coupled to the first loop and electrically insulated from the first loop; the antenna for use with a device for controlling the power delivered to an electrical load, further wherein the first loop of the conductive material comprises a break and the capacitance includes a capacitor bridging the break; wherein the first loop comprises a first metal layer on a first side of the first printed circuit board and a second metal layer on a second, opposite side of the first printed circuit board, the first and second layers being electrically connected to each other and wherein the break is provided in one of layers.
Abstract:
A liquid metered dispensing squeeze bottle includes: (a.) a squeezable container having an opening for dispensing liquid therefrom at one end and a bottom at the other end; (b.) a nonflexible trap chamber of a predetermined volume, connected to the opening of the container; (c.) a dip tube, and (d.) a one way valve at the bottom of the dip tube. There is an inlet leg that freely rotates around the bottom of the dip tube and a drive mechanism, such as a counterweight or a float, to assure that the leg extends into an air pocket when the container is tilted for liquid squeeze dispensing.
Abstract:
An electronic ballast for driving at least one lamp comprising a rectifying circuit operatively connectable to an AC line; a current drawing circuit connected across said rectifying circuit; and an inverter circuit connected to said rectifying circuit that supplies a lamp current to said at least one lamp; wherein said current drawing circuit draws current from said AC line when the instantaneous voltage of said AC line nears zero to reduce the total harmonic distortion of the input current drawn by said ballast.
Abstract:
An electronic ballast for driving a gas discharge lamp includes a rectifier, a valley-fill circuit, an inverter having first and second series-connected controllably conductive switches having complementary duty cycles, a control circuit for controlling the controllably conductive switches, and an independent cat ear power supply to provide power to the ballast control circuits. The result is a ballast having substantially improved power factor, THD, and current crest factor. In a preferred embodiment, the valley-fill circuit includes an energy storage device that stores energy in response to a controllably conductive switch. In an especially preferred embodiment, the controllably conductive switch of the valley-fill circuit is also one of the switches of the inverter.
Abstract:
A liquid metered dispensing squeeze bottle includes: (a.) a squeezable container having an opening for dispensing liquid therefrom at one end and a bottom at the other end; (b.) a nonflexible trap chamber of a predetermined volume, connected to the opening of the container; (c.) a dip tube, and (d.) a one way valve system at the bottom of the dip tube that includes a leg. There is also a flexion mechanism on one or both of the dip tube and the leg to permit folding of the leg toward the tube for insertion into a standard neck or narrow neck container.