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"Linear Led Lamp Tube with Internal Driver and Two- Or Three-Prong Polarized Plug and Methods of Installing the Same" in Patent Application Approval...

September 3, 2014



"Linear Led Lamp Tube with Internal Driver and Two- Or Three-Prong Polarized Plug and Methods of Installing the Same" in Patent Application Approval Process

By a News Reporter-Staff News Editor at Electronics Newsweekly -- A patent application by the inventors Halliwell, Brian (Pico Rivera, CA); Matten, David (Fort Lauderdale, FL), filed on August 7, 2013, was made available online on August 21, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application is assigned to Feit Electric Company, Inc.

The following quote was obtained by the news editors from the background information supplied by the inventors: "Progress in the field of engineering and manufacturing light emitting diodes (LEDs) has resulted in an increased interest in employing LED lamps in general lighting applications. Particularly, an interest exists in replacing fluorescent lamp tubes with LED lamp tubes. LED lamp tubes offer several advantages over traditional fluorescent lamp tubes. For example, LED lamps have a significantly longer life than fluorescent lamps and do not contain the dangerous chemicals that fluorescent lights depend upon for their fluorescence. Fluorescent and LED lamps, however, have different electrical requirements for the fixtures into which they will be installed.

"Fluorescent lamp tubes generally have an end cap located at each end of the fluorescent lamp tube. Electrodes located on the end caps, commonly referred to as 'pins,' are used to electrically and mechanically connect the fluorescent tube lamp into the fixture. Having electrodes at both ends of the tube allows the electrical power to flow across (i.e., through) the lamp tube, causing the lamp tube to fluoresce. Thus, the fixture into which a fluorescent lamp tube is installed will maintain the first end of the tube as electrically positive and the second end of the tube as electrically negative.

"LED lamps, on the other hand, require a low voltage source. Indeed, LEDs generally provided within LED lamps require a direct current (DC) voltage. Thus, LED lamps configured in this manner require driver circuitry which regulates the voltage passed to the LEDs. However, conventionally configured driver circuitry does not require the first end of the tube to be electrically positive and the second end to be electrically negative. As a result, a fixture designed for fluorescent lamp tubes may not be readily appropriate for use with LED lamp tubes, without some degree of modification, such as the non-limiting examples of replacing lamp holders, rewiring existing lamp holders, and the like, so as to convert the fixture for use with LED lamps. Notwithstanding the above, certain LED lamps may incorporate alternating current (AC) voltage components; however, modifications remain likewise necessary in that context, as with DC voltage sourced lamp tubes.

"Because a huge number of fluorescent light fixtures are currently in use, converting and/or modifying each fixture, whether DC or AC sourced, in one or more of the manners described above would involve a considerable amount of effort and money. Therefore, if various advantages of LED lamp tubes over fluorescent lamp tubes are to be fully realized, a need exists for an LED lamp tube that can be readily installed and used with existing fluorescent light fixtures, without expensive modifications or replacement of the fixtures."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventors' summary information for this patent application: "Generally described, various embodiments of the present invention comprise a linear wired LED lamp tube configured to replace a fluorescent lamp tube, such as the non-limiting examples of a T8 or T12 fluorescent lamp tube, or the like. The self-ballasted LED lamp tube of various embodiments comprises driver circuitry disposed within the tube, and pins configured to only mechanically connect to the light fixture. In this manner, the pins, according to various embodiments, are electrically isolated from the electrical components of the lamp tube. Thus, the tombstones of a traditional fluorescent light fixture do not need to be modified to accommodate the LED lamp tube of the present invention. As a result, according to various embodiments, power may be supplied to the LED lamp tube via the non-limiting example of a set of wires protruding directly from the LED lamp tube that are connected directly to a branch wire circuit. In certain embodiments, the connection to the branch wire circuit may be made using a quick connect connector and/or with any approved wiring connection device, as may be desirable for particular applications.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between said first and second end surfaces, said surfaces collectively defining an interior cavity of said elongate member; at least one light emitting diode (LED) positioned within said interior cavity and adjacent said intermediate surface; and a passage formed through at least a portion of said substantially elongate member, said passage being configured to receive there-through at least a first end of a set of electrical connecting wires, wherein said first end of said set of electrical connecting wires comprises at least one of a two- or three-prong polarized plug.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between said first and second end surfaces, said surfaces collectively defining an interior cavity of said elongate member; at least one light emitting diode (LED) positioned within said interior cavity and adjacent at least a portion of said intermediate surface; at least one driver circuit positioned within said interior cavity, said driver circuit comprising a set of electrical connecting wires and being configured to provide a controllable electrical current to said at least one LED; and a passage formed through at least a portion of said substantially elongate member, said passage being configured to receive there-through at least a portion of said set of electrical connecting wires, wherein said at least a portion of said set of electrical connecting wires comprises at least one of a two- or a three-prong polarized plug.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided, wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between said first and second end surfaces, said surfaces collectively defining an interior cavity of said elongate member; at least one light emitting diode (LED) positioned within said interior cavity and adjacent said intermediate surface; at least one pin secured on each of said first and second end surfaces, wherein at least a portion of said pin is disposed external said interior cavity and configured to mount said LED lamp tube to said fluorescent light fixture such that said at least one pin is electrically isolated from said fluorescent light fixture; and a passage formed through at least a portion of said substantially elongate member, said passage being configured to receive there-through at least a first end of a set of electrical connecting wires, wherein said first end of said set of electrical connecting wires comprises at least one of a two- or a three-prong polarized plug.

"In various embodiments, a method of installing at least one LED lamp tube in a fluorescent light fixture is provided, wherein the method comprises the steps of: (A) providing at least one LED lamp tube comprising: (1) a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between said first and second end surfaces, said surfaces collectively defining an interior cavity of said elongate member; (2) at least one light emitting diode (LED) positioned within said interior cavity and adjacent at least a portion of said intermediate surface; (3) at least one driver circuit positioned within said interior cavity, said driver circuit comprising a set of electrical connecting wires and being configured to provide a controllable electrical current to said at least one LED; (4) a passage formed through at least a portion of said substantially elongate member, said passage being configured to receive there-through a first end of said set of electrical connecting wires, wherein said first end of said set of electrical connecting wires comprises at least one of a two- or three-prong polarized plug; and (5) at least one pin secured on each of said first and second end surfaces, wherein at least a portion of said pin is disposed external said interior cavity and electrically isolated from at least said at least one driver circuit; (B) mounting said at least one LED lamp tube into said fluorescent light fixture via said at least one pin such that said pin is further electrically isolated from said fluorescent light fixture; and (C) electrically connecting said at least one internally positioned driver circuit to said fluorescent light fixture via said set of electrical connecting wires extending substantially through said passage by inserting the two- or three-prong polarized plug into a line voltage plug-in receptacle.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between the first and second end surfaces, the surfaces collectively defining an interior cavity of the elongate member; at least one light emitting diode (LED) positioned within the interior cavity and adjacent the intermediate surface; and a passage formed through at least a portion of the substantially elongate member, the passage being configured to receive there-through at least a first end of a set of electrical connecting wires.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between the first and second end surfaces, the surfaces collectively defining an interior cavity of the elongate member; at least one light emitting diode (LED) positioned within the interior cavity and adjacent at least a portion of the intermediate surface; at least one driver circuit positioned within the interior cavity, the driver circuit comprising a set of electrical connecting wires and being configured to provide a controllable electrical current to the at least one LED; and a passage formed through at least a portion of the substantially elongate member, the passage being configured to receive there-through at least a portion of the set of electrical connecting wires.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between the first and second end surfaces, the surfaces collectively defining an interior cavity of the elongate member; at least one light emitting diode (LED) positioned within the interior cavity and adjacent the intermediate surface; and at least one pin secured on each of the first and second end surfaces, wherein at least a portion of the pin is disposed external the interior cavity and configured to mount the LED lamp tube to the fluorescent light fixture such that the at least one pin is electrically isolated from the fluorescent light fixture

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between the first and second end surfaces, the surfaces collectively defining an interior cavity of the elongate member; at least one LED positioned within the interior cavity and adjacent at least a portion of the intermediate surface; and at least one driver circuit positioned within the interior cavity, the driver circuit comprising a set of electrical connecting wires and being configured to provide a controllable electrical current to at least one LED.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between the first and second end surfaces, the surfaces collectively defining an interior cavity of the elongate member; at least one LED positioned within the interior cavity and adjacent the intermediate surface; at least one pin secured on each of the first and second end surfaces, wherein at least a portion of the pin is disposed external the interior cavity and configured to mount the LED lamp tube to the fluorescent light fixture such that the at least one pin is electrically isolated from the fluorescent light fixture.

"In various embodiments, an LED lamp tube for placement in a fluorescent light fixture is provided wherein the LED lamp tube comprises: a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between the first and second end surfaces, the surfaces collectively defining an interior cavity of the elongate member; at least one LED positioned within the interior cavity and adjacent the intermediate surface; a passage formed through at least a portion of the substantially elongate member, the passage configured to receive there-through the set of electrical connecting wires; and a connector located external relative to the substantially elongate member, wherein a first end of the set of electrical connecting wires is secured in an appropriate position in the connector.

"In various embodiments, a method of installing at least one LED lamp tube in a fluorescent light fixture is provided. In various such embodiments, the method comprises the steps of: (A) providing at least one LED lamp tube comprising: (1) a substantially elongate member comprising a first end surface, a second end surface, and an intermediate surface substantially between the first and second end surfaces, the surfaces collectively defining an interior cavity of the elongate member; (2) at least one light emitting diode (LED) positioned within the interior cavity and adjacent at least a portion of the intermediate surface; (3) at least one driver circuit positioned within the interior cavity, the driver circuit comprising a set of electrical connecting wires and being configured to provide a controllable electrical current to the at least one LED; (4) a passage formed through at least a portion of the substantially elongate member, the passage being configured to receive there-through a first end of the set of electrical connecting wires; and (5) at least one pin secured on each of the first and second end surfaces, wherein at least a portion of the pin is disposed external the interior cavity and electrically isolated from at least the at least one driver circuit; (B) mounting the at least one LED lamp tube into the fluorescent light fixture via the at least one pin such that the pin is further electrically isolated from the fluorescent light fixture; (C) electrically connecting the at least one internally positioned driver circuit to the fluorescent light fixture via the set of electrical connecting wires extending substantially through the passage.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

"Having thus described various embodiments of the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:

"FIG. 1 is a side view according to various embodiments of the LED lamp tube;

"FIG. 2 is a cross-sectional view according to various embodiments of the LED lamp tube;

"FIG. 3 is a partial front view of two LED lamp tubes according to various embodiments, as installed in a light fixture;

"FIG. 4 is a partial side view of an LED lamp tube according to various embodiments, as installed in a light fixture;

"FIG. 5 is a schematic wiring diagram of an LED lamp tube according to various embodiments in electrical connection to line voltage;

"FIG. 6 is a top view of an LED lamp tube according to various embodiments of the present invention;

"FIG. 7 is a close up top view of one end of an LED lamp tube according to various embodiments of the present invention;

"FIG. 8 is a perspective view of one end of an LED lamp tube according to various embodiments of the present invention;

"FIG. 9 is a side view of one end of an LED lamp tube according to various embodiments of the present invention;

"FIG. 10 is a bottom view of one end of an LED lamp tube, according to various embodiments of the present invention;

"FIG. 11 is a back view of one end of an LED lamp tube, according to various embodiments of the present invention;

"FIG. 12 is a side view of one end of an LED lamp tube, according to various embodiments of the present invention;

"FIG. 13A is a perspective view of an LED lamp tube with electrical connecting wires inserted into a WAGO 773 style quick connect connector, according to various embodiments of the present invention;

"FIG. 13B is a perspective view of an LED lamp tube with electrical connecting wires terminating with a self-contained 2-prong polarized plug, according to various embodiments of the present invention;

"FIG. 14 is a closer side view of the quick connect connector, which is secured to the ends of electrical connecting wires, according to various embodiments of the present invention;

"FIG. 15 is a perspective view of the electrical connecting wires inserted into a quick connect connector, according to various embodiments of the present invention;

"FIG. 16 is a perspective top view of a first end of an LED lamp tube according to various embodiments of the present invention;

"FIG. 17 is a perspective top view of a second end of an LED lamp tube, according to various embodiments of the present invention; and

"FIG. 18 is an end view of one end of an LED lamp tube, according to various embodiments of the present invention"

URL and more information on this patent application, see: Halliwell, Brian; Matten, David. Linear Led Lamp Tube with Internal Driver and Two- Or Three-Prong Polarized Plug and Methods of Installing the Same. Filed August 7, 2013 and posted August 21, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=3794&p=76&f=G&l=50&d=PG01&S1=20140814.PD.&OS=PD/20140814&RS=PD/20140814

Keywords for this news article include: Electronics, Light-emitting Diode, Feit Electric Company Inc..

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Source: Electronics Newsweekly


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