Mag Instrument, Inc.
|Mag Instrument, Inc. Patent applications|
|Patent application number||Title||Published|
|20130049582||PORTABLE LIGHTING DEVICE - A portable electronic lighting device and a method for controlling a portable lighting device are described. The device has a switched-mode power supply, a light source, a high frequency switch, a controller controlling the operation of the light source and a user interface for inputting commands to the controller. A DC power source has a negative pole that is connected by only one single electric contact with the lighting device tail. The method for controlling a portable lighting device includes connecting a DC power source, an inductor, a light source, a high frequency switch and a resistor in series, measuring a voltage across the resistor, and controlling the high frequency switch dependent on the voltage measured across the resistor.||02-28-2013|
|20120133296||Circuitry for portable lighting devices and portable rechargeable electronic devices - A portable electronic device, such as a flashlight, with a circuit for reducing the initial surge of current that is sent through the lamp filament when a flashlight is turned on is provided. The circuit reduces the stresses placed on the lamp bulb when it is turned on, thereby extending the life expectancy of the lamp bulb. A flashlight with beacon mode that produces light according to a duty cycle of less than 11% is also disclosed.||05-31-2012|
|20110222273||Lighting device with variable length conductor - An improved flashlight includes a barrel, a light source and a variable length conductor. The barrel contains a plurality of batteries which may be arranged end-to-end. The light source is held in a holder. The variable length conductor is interposed between the plurality of batteries and the light source. The variable length conductor is configured to selectively electrically couple or de-couple the light source and the batteries. The holder of the light source may further be configured to move the light source substantially laterally relative to an axis of the reflector.||09-15-2011|
|20100177508||Portable Lighting Device - A flashlight having a main power circuit and a barrel is disclosed. The main power circuit includes a light source and a portable power source for supporting the light source. The barrel is not within the main power circuit. The flashlight also has a ball for holding the light source. The light source is fit and in contact with the inner surface of the ball. The outer circumference of the ball has an array of fin-like protrusions for effectively dissipating heat from the light source.||07-15-2010|
|20100177507||BATTERY PACK ASSEMBLIES AND PORTABLE LIGHTING DEVICES EMPLOYING SAME - A portable electronic device, such as a flashlight, with a battery pack assembly is provided. The battery pack assembly has a cylindrically shaped housing with a base and a cover that form a chamber to hold a battery pack. A printed circuit board is installed in the cylindrically shaped housing to provide multiple functions to the portable electronic device.||07-15-2010|
|20100176750||MULTI-MODE PORTABLE LIGHTING DEVICE - A portable lighting device, such as a flashlight, with a mechanical power switch and multiple operating modes is provided. The mechanical power switch is disposed in series with the controller for the lighting device and acts as the user interface to the controller to change modes of operation. Because the mechanical power switch is in series with the controller, the portable lighting device does not consume battery power when the mechanical switch is open. A state machine coupled to the controller is polled by the controller each time it is powered up to determine the operational mode of the lighting device.||07-15-2010|
|20100033972||LED MODULE - A light emitting diode (“LED”) module with improved thermal characteristics is provided. The module includes an LED, a first circuit board, a second circuit board, a lower insulator, an upper insulator, a lower contact, upper contacts, and a heat sink. Preferably, the heat sink comprises an outer housing and a contact ring. The LED and the heat sink are attached to the first circuit board via solder. In addition to serving as a substrate for the LED, the first circuit board (which contains a plurality of thermally conductive layers connected by vias) facilitates the transfer of heat away from the LED to the heat sink. The module also has improved mechanical and electrical properties, including redundant electrical connections, stable mechanical connections, and a shock-absorbing lower contact. The lower insulator can also be configured to prevent misalignment of the power source with the lower contact when the module is used in a flashlight or other lighting device.||02-11-2010|
|20100033963||Portable Lighting Devices - A flashlight having a locking mechanism for securing a head skirt to a head assembly is disclosed. A circuit for temporarily remember the mode of operation of the flashlight is also disclosed.||02-11-2010|
|20090109664||Lighting device - A portable, battery-operated flashlight having improved pivoting, switching and focusing features is disclosed. In one aspect of the invention, the flashlight takes the form of an attachment to a head gear for hands free use. In another aspect of the invention, the flashlight takes the form of a head lamp held in place on an user's head by an elastic band. The pivot connection between the body and the base, as well as the serrations on an exterior surface of the body, allows a user to adjust any angular direction of the light as desired. In another aspect of the invention, the flashlight takes the form of a long-handled flashlight having improved switching and focusing capabilities, such that axial movement of the switching assembly turns the flashlight “on” or “off,” as well as causing a position of the lamp to vary in order to focus or defocus the light.||04-30-2009|
|20080247158||Tubular barrel-shaped flashlight having rotatable switching assembly and focusing and defocusing capability - A flashlight in accordance with the present invention includes a chamber, end cap, head assembly, and lamp holder assembly. The head assembly includes a reflector and a lens. In accordance with one embodiment of the present invention, the flashlight includes electrode connections that prevent the conduction of electrical energy from one or more batteries which are improperly aligned within the chamber. In another embodiment, the lamp holder assembly includes a lamp socket having a lamp guide and/or a fluorescent coating. In another embodiment, the flashlight comprises a head assembly attached to the chamber which is rotatable relative to the chamber to cause electrical coupling of the lamp and one or more batteries retained by the chamber.||10-09-2008|
Patent applications by Mag Instrument, Inc.