All The Claims

1. An element replacement type filter that accommodates an element assembly that includes a filter element within a casing formed from a first casing member and a second casing member which are mutually screwable by relative rotation, and that provides an anti-loosening mechanism between said first casing member and said second casing member, wherein
said anti-loosening mechanism comprises a regulating portion that is provided on an outer peripheral side of said first casing member; and a leaf spring member made of metal that is provided elastically deformable in a radial direction of said second casing member, with a base end side thereof fixed to an outer peripheral side of said second casing member, and
said leaf spring member has a free end side that is provided with a contact portion, which contacts said regulating portion due to relative rotation of said first casing member and said second casing member.
2. The element replacement type filter according to claim 1, wherein said contact portion comprises:
a first contact surface that contacts said regulating portion when said first casing member and said second casing member are relatively rotated in directions that tighten screwing thereof; and
a second contact surface that contacts said regulating portion when said first casing member and said second casing member are relatively rotated in directions that loosen screwing thereof, wherein
an angle formed by said first contact surface and a tangent of said second casing member is set to a value smaller than an angle formed by said second contact surface and the tangent of said second casing member.
3. The element replacement type filter according to claim 2, wherein
said angle formed by said first contact surface and the tangent of said second casing member is set to 10 to 50 degrees, and said angle formed by said second contact surface and the tangent of said second casing member is set to 40 to 80 degrees.
4. The element replacement type filter according to claim 1, wherein
said leaf spring member has a base end side provided with a press-fixed portion that is formed by folding said base end side, and that is elastically deformed and pressed into a groove portion formed on said outer peripheral side of said second casing member.
5. The element replacement type filter according to claim 4, wherein
said leaf spring member opposes an outer peripheral surface of said second casing member with a predetermined space therebetween, in a state where said press-fixed portion is pressed into said groove portion.
6. The element replacement type filter according to claim 4, wherein
said free end side of said leaf spring member is provided with a grip portion that is formed by folding said free end side.
7. The element replacement type filter according to claim 1, wherein
said leaf spring member extends in an axial center direction of said second casing member.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A voltage conversion apparatus for providing power anywhere, the voltage conversion apparatus comprising:
a housing that includes a voltage converter disposed therein, the voltage converter configured to provide voltage conversion of an existing high voltage power source;
a mounting structure configured to support the housing and configured to mount the voltage conversion apparatus to a location near the existing high voltage power source;
an adapter configured to connect to the existing high voltage power source;
an input cable connected to the adapter and the voltage converter and configured to input high voltage power to the voltage converter; and
an output cable connected to the voltage converter and configured to direct a converted voltage power from the voltage converter to an end use device.
2. The voltage conversion apparatus of claim 1, wherein the voltage converter includes a step down voltage transformer configured to convert a primary alternating current (AC) voltage into a secondary AC voltage that is lower than the primary AC voltage.
3. The voltage conversion apparatus of claim 2, wherein the primary AC voltage is about 277 volts AC and the secondary AC voltage is about 120 volts AC.
4. The voltage conversion apparatus of claim 1, wherein the voltage converter includes a step down voltage transformer and a rectifier that are configured to convert a primary alternating current (AC) voltage into a secondary direct current (DC) voltage that is lower than the primary AC voltage.
5. The voltage conversion apparatus of claim 1, wherein the voltage converter includes a liquid emitting diode (LED) driver that is configured to convert a primary alternating current (AC) voltage into a secondary direct current (DC) voltage.
6. The voltage conversion apparatus of claim 1, wherein the voltage converter includes an uninterruptible power supply (UPS) that is configured to store a high alternating (AC) voltage power from the existing high voltage power source.
7. The voltage conversion apparatus of claim 1, further including a circuit breaker disposed in the housing and connected to the voltage converter.
8. The voltage conversion apparatus of claim 1, wherein the mounting structure includes a support plate configured to support the housing and a plurality of support rails attached to the support plate, the plurality of support rails configured to mount the voltage conversion apparatus to the location near the existing high voltage power source.
9. The voltage conversion apparatus of claim 8, wherein the location near the existing high voltage power source is a ceiling grid, and wherein the plurality of support rails includes a plurality of notches sized and spaced to rest on a plurality of span bars of the ceiling grid.
10. A voltage converter for providing power anywhere within a store, the voltage converter comprising:
voltage conversion means for providing voltage conversion of electricity from an existing voltage power source;
casing means for housing the voltage conversion means;
attaching means for supporting the casing and attaching the voltage converter near a ceiling of the store;
adapter means for connecting to the existing voltage power source of the store;
input connecting means for electrically connecting the adapter means and the voltage conversion means, the input connecting means inputting high voltage power to the voltage conversion means; and
output connecting means for directing a converted voltage power from the voltage conversion means to an end use device.
11. A method for providing power anywhere within a store, the method comprising:
mounting a support structure of a conversion device to a ceiling structure of the store, the conversion device including the support structure, a power converter connected to an output connection and connected to a connector;
disconnecting a portion of an existing circuit;
connecting a first end of the portion of the existing circuit to the connector of the conversion device;
connecting a second end of the portion of the existing circuit to the connector; and
routing the output connection of the conversion device to an end use device.
12. The method of claim 11, further comprising connecting the output cable to the end use device.
13. The method of claim 11, further comprising routing the existing circuit through the store via a modular cable scheme.
14. A system for providing power anywhere within a building comprising:
an electrical power circuit provided near a ceiling of the building and configured to provide power along the ceiling of the building;
a power converter device that includes an attaching portion configured to mount the power converter device near the ceiling of the building, a connecting portion configured to connect to the electrical power circuit and receive power from the electrical power circuit, and a voltage modifier configured to modify a voltage of the power from the electrical power circuit.
15. The system of claim 14, wherein the voltage circuit is configured to provide high voltage power to a light fixture near the ceiling of the building.
16. The system of claim 14, wherein the electrical power circuit is routed through the building via a sectional cable scheme, and the connecting portion is configured to plug into the sectional cable scheme.
17. The system of claim 14, wherein the power converter device is configured to route voltage modified power from the voltage modifier to an end use application.
18. The system of claim 14, wherein the voltage modifier includes a step down voltage transformer that is configured to convert a primary alternating current (AC) voltage from the electrical power circuit into a secondary AC voltage that is lower than the primary AC voltage.
19. The system of claim 14, wherein the voltage modifier includes a step down voltage transformer and a rectifier that is configured to convert a primary alternating current (AC) voltage from the electrical power circuit into a secondary direct current (DC) voltage that is lower than the primary AC voltage.
20. The system of claim 14, wherein the voltage modifier includes an LED driver that is configured to convert a primary AC voltage from the electrical power circuit into a secondary DC voltage.
21. The system of claim 14, wherein the voltage modifier includes an uninterrupted power supply that is configured to store the power from the electrical power circuit.
22. The system of claim 14, wherein the attaching portion is configured to mount onto a ceiling grid of the building.
23. The system of claim 14, wherein the attaching portion is configured to suspend from the ceiling of the building via a plurality of supports.

1. A portable lighting system comprising:
a light comprising
at least one light emitting diode (LED);
at least one battery;
circuitry connecting said at least one LED to said at least one battery;
a magnet switch interposed in the circuitry;
a manual switch interposed in the circuitry, the switch having a first position and a second position;
an enclosure surrounding the at least LED, the circuitry, the magnetic switch, and the manual switch;
a sealing means to prevent moisture intrusion into the enclosure;
and a means for mounting said enclosure to a surface;

a magnet with a means for mounting the magnet to a surface, the magnet being positioned in proximity to the light;
wherein the at least one battery, magnetic switch, manual switch, circuitry and at least one LED are arranged and connected in a manner such that when the magnet is removed from proximity to the light, and said manual switch is in a first position circuitry connects power from said at least one battery to said at least one LED.
2. The system of claim 1 wherein said mounting means of said light is a removable means.
3. The system of claim 1 wherein said light further comprises a means for controlling the dispersion of light from said at least one LED.
4. The system of claim 3 wherein said means comprises a reflector.
5. The system of claim 3 wherein said means comprises a lens.
6. The system of claim 3 wherein said means is demountable.
7. The system of claim 6 wherein said means comprises a reflector.
8. The system of claim 6 wherein said means comprises a lens.
9. The system of claim 1 wherein said manual switch comprises a magnet.
10. The system of claim 2 wherein said mounting means of said light comprises hook and loop fasteners.
11. The system of claim 1 wherein said at least one battery is replaceable.
12. The system of claim 1 wherein said at least one battery is not replaceable.
13. The system of claim 1 wherein said light has a one LED.
14. The system of claim 1 wherein said light has multiple LEDs.
15. The system of claim 2 further comprising an additional mounting means which can be removably mounted to an article of clothing or an object such that said light can be removably mounted to said article of clothing or object.
16. The system of claim 15 wherein said additional mounting means is a hook and loop fastener.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A mixer, comprising:
first and second MOSFETs having source terminals coupled together;
a first input MOSFET coupled to the source terminals of the first and second MOSFETs to operate as a first bias current sink for the first and second MOSFETs and coupled to receive a first leg of a small differential signal input;
third and fourth MOSFETs having source terminals coupled together wherein the drain terminals of the first and third MOSFETs are coupled together to provide a first leg of a differential output of the mixer and the drain terminals of the second and fourth MOSFETs are coupled together to provide a second leg of the differential output;
a second input MOSFET coupled to the source terminals of the third and fourth MOSFETs to operate as a second bias current sink for the third and fourth MOSFETs and coupled to receive a second leg of the small differential signal input;
wherein the first and fourth MOSFETs have gate terminals operatively coupled to receive a first leg of a large signal differential input;
wherein the second and third MOSFETs have gate terminals operatively coupled to receive a second leg of a large signal differential input;
at least one current source; and
first and second coupling MOSFETs operably coupled to the at least one current source and to the first and second input MOSFETs, respectively, to substantially source the first and second bias currents when the large signal differential input approaches an alternating current zero-crossing point, the first and second coupling MOSFETs further coupled to receive, at a gate terminal of each of the first and second coupling MOSFETs, a signal from the source terminals of the third and fourth MOSFETs and the first and second MOSFETs, respectively, to operationally bias the first and second coupling MOSFETs.
2. The mixer of claim 1 wherein the at least one current source consists of one current source wherein the coupling circuitry couples the one current source to each of the first and second bias current sinks.
3. The mixer of claim 1 wherein the at least one current source comprises a resistor coupled to a supply voltage.
4. The mixer of claim 1 wherein the at least one current source comprises a MOSFET coupled and biased to act as a resistor coupled to a supply voltage.
5. The mixer of claim 1 wherein the at least one current source comprises two current sources for sourcing current approximately at a zero-crossing wherein a first of the two current sources substantially sources current for the first bias current sink and wherein a second of the two current sources substantially sources current for the second bias current sink.
6. The mixer of claim 5 wherein the at least one current source comprises two resistors coupled to a supply voltage.
7. The mixer of claim 5 wherein the at least one current source comprises two MOSFETs coupled and biased to act as resistors coupled to a supply voltage.
8. The mixer of claim 1 wherein the coupling circuitry comprises at least one coupling MOSFET.
9. The mixer of claim 8 wherein each MOSFET of the at least one coupling MOSFET comprises a p-channel MOSFET.
10. The mixer of claim 5 wherein the coupling circuitry comprises at least two p-channel coupling MOSFETs, each having a gate terminal coupled to receive a bias signal that operably biases the p-channel MOSFET as the large signal differential input approaches a zero-crossing.