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| Number | Title | Issue Date |
| 7178932 | Welding helmet Apparatus 10 discloses an improved welders helmet having a replaceable lens 16 thereon incorporating an electrically driven fan 14 which receives filtered air through a plurality of air ducts 24 having a filter 22 thereon. A recept... | 02/20/2007 |
| 7161135 | Multi-stage sensor for an auto-darkening lens for use in welding and method A multi-stage control for an auto-darkening lens includes a first detector to detect initiation of welding and a second detector to detect continuation of welding after welding has been initiated. The first detector has relatively low sensitivity and fast response t... | 01/09/2007 |
| 7161116 | Welding protective mask with illumination equipment A welding protective mask (1) includes illumination equipment (3) for illuminating a work area. The illumination equipment (3) includes an illumination device (5), a detection device (8) for detecting an ambient light intensity, an... | 01/09/2007 |
| 7126085 | Self-darkening shield for replaceably attaching to a torch A self-darkening shield for replaceably attaching to a torch. The self-darkening shield includes a shield and apparatus. The shield replaceably attaches to the torch, is self-darkening, and is a plate that is substantially inverted U-shaped to straddle the torch to ... | 10/24/2006 |
| 7044610 | Method and apparatus for preventing debris contamination of optical elements used for imaging The imaging debris produced by imaging a media with a higher power laser is prevented from accumulating on an optical imaging element by establishing a substantially non-turbulent fluid flow across the optical element. The non-turbulent flow forms a barrier between ... | 05/16/2006 |
| 7029136 | Light shield for welding A light shield for eye protection in the welding process comprises a holding unit, a base plate, a filter plate and a universal joint. The filter plate, in conjunction with the base plate, is mounted on a universal joint by which the tilt angle thereof with respect ... | 04/18/2006 |
| 7008055 | Eye protection methods and apparatus An eye protection apparatus includes a selectively darkenable element, such as a liquid crystal panel, and a controller that causes transmission of a darken signal that causes the selectively darkenable element to darken in conjunction with an emission of light, suc... | 03/07/2006 |
| 6941577 | Antiglare device for welding protective masks A glare protection device for a welding protective mask includes an active electro-optical protective filter (2) and an electronic circuit (10). An UV-detector (UVD), which serves as an optical sensor, detects the welding light and, via an evaluation c... | 09/13/2005 |
| 6936789 | Triggerless welding implement and method of operating same A magnetically-actuated switch adapted to control a welding device. The magnetically-actuated switch may comprise a set of electrical connectors that are brought into electrical communication with one another by magnetic force. The magnetically-actuated switch may b... | 08/30/2005 |
| 6934967 | Welding operation liquid crystal protection mask A welding-operation, liquid crystal, protection mask for protecting the eyes of a human operator from an arc light generated during a welding operation, comprises a liquid crystal protection mask main body adapted to be attached to the face of a human operator; a de... | 08/30/2005 |
| 6734393 | Data display on a welding screen The invention describes a welding system with a welding device (1) and a protective device (28), in particular a protective shield (29) for a user or welder. The protective device (28) has an electrically controllable and/or adjustable pr... | 05/11/2004 |
| 6710298 | Device for metal welding The invention relates to a device for metal welding, comprising a shielding element (1) which allows visual monitoring of the working process but protects the eyes from light radiation. The device comprises a video camera (5) which is directable toward... | 03/23/2004 |
| 6242711 | Arc welding monitoring system Apparatus for monitoring manual arc welding procedures for providing to the welder real-time monitoring of the welding characteristics to achieve optimum welds. The voltage and current conditions of the welding arc are instantly transferred within the vis... | 06/05/2001 |
| 6230328 | Jeweler platinum welding eye-protection device having a clip-on mount An eye protection device for use in the welding of platinum jewelry items under magnification of a visor containing lens includes a pair of opposing support arms attached to a mounting bracket for attachment to the image magnification visor. A filter fram... | 05/15/2001 |
| 6172334 | Tool kit for shielded metal-arc welding Welding device to enable a welder to maintain an upright position when welding at floor level. The device is a rigid handle having a pistol-type handgrip and telescoping tubes. The telescoping tubes can be easily adjusted and interlocked, thus providing a... | 01/09/2001 |
| 6012163 | Jeweler platinum welding eye-protection device An eye protection device for use in the welding of platinum jewelry items under magnification of a visor containing a lens includes a pair of opposing support arms attached to a mounting bracket for attachment to the image magnification visor. A filter fr... | 01/11/2000 |
| 6008466 | Laser beam machining device with protective mask and safety switches A protective mask which has a face shield and an eye shield is used for safety when a worker machines a workpiece by a laser beam. Start switches are provided in the mask, and closed when a worker wears the mask. A laser torch, a conductive clip and a las... | 12/28/1999 |
| 5880793 | Glare protection device Electro-optical glare protection device is disclosed for use with protective glasses, protective helmets or protective masks with at least one optical detector, especially a photodiode, with an electro-optical glare protection plate incorporating at least... | 03/09/1999 |
| 5877825 | Method and device including electro-optical shutter for protection from pulsed radiation A method and a safety device for the protection of a user's eye, or other radiation sensitive system, from a pulsed radiation emitted by a radiation source by means of an electro-optical shutter used in conjunction with the radiation source. The electro-o... | 03/02/1999 |
| 5614117 | Welding apparatus and shield therefor A welding apparatus and shield are provided for safely and effectively welding metal structures. The shield includes a translucent body having an oblique end surface which, in part, extends beyond the end of a gas nozzle of an arc welding apparatus. The o... | 03/25/1997 |
| 5519522 | Eye protection device for welding helmets and the like with hot mirror and indium tin oxide layer A welding helmet including an optical protective lens including one or more liquid crystal cells as a variable optical transmission device responsive to a prescribed input to vary light transmission and light blocking characteristics thereof, and a hot mi... | 05/21/1996 |
| 5241154 | Shield for mig welder A shield for a welding torch. The shield can be adjusted to positions above, beneath, and to either side of the tip of the torch.... | 08/31/1993 |
| 5191468 | Welder's helmet A welder's helmet (1) provided with a fast filter (3) which is controlled by welding light and through which the wearer of the helmet can see clearly in the absence of welding light. In accordance with the invention, the helmet is complemented with side w... | 03/02/1993 |
| 5189735 | Welding system with automatic welding helmet and safety circuit A welding system with an automatically operated helmet closes the helmet's hood, and thus its face mask, before turning on a welding electrode. The system includes an actuator with a piston that mount to the helmet's headband and hood, respectively. Only ... | 03/02/1993 |
| 5077448 | Fuse fault protection shield A shield member for attachment to a conventional insulative line stick as used by power linesmen and other electrical staff working on high voltage distribution lines protects the user of a line stick when closing cut-out assembly doors and engaging in si... | 12/31/1991 |
| 4945572 | Welding helmet A welding mask is disclosed comprising an opaque face shield having a viewing opening therein, a filter lens pivoted to the face shield adjacent the viewing opening, moving means to move the filter lens pivoted to the face shield adjacent the viewing open... | 08/07/1990 |
| 4937879 | Automatic welding helmet An automatic rotatable welding helmet for TIG and MIG electric arc welding systems having safety means preventing the arc cycle from commencing until the helmet is in the fully down position. An arc welding helmet is provided having a hood with eye shield... | 07/03/1990 |
| 4890335 | Ventilated welding shield A welding shield is designed to have a flow of ventilating air directed across both exterior and interior surfaces of a viewing lens forming a part of the shield. Both integral and separable air supply arrangements are used, and all of the supplied air is... | 01/02/1990 |
| 4875235 | Welder's mask with breath controlled eye shield A welder's mask with breath-activated eye shield which includes a conventional welder's mask housing with hardware for mounting upon a welder's head. A viewing opening exists in the mask housing which receives a welder's eye shield into an eye shield fram... | 10/24/1989 |
| 4785954 | Welding maskholder A special welding apparatus comprises welding pliers and a head shield, which may be attached together by means of an engaging groove, a pressure ball, a fixed ring, a fixed hook and a hook seat, or may be separated from each other. The colored goggle ass... | 11/22/1988 |
| 4730096 | Welding monitoring apparatus An apparatus for monitoring the welding state or the like of a welding part luminous at a high luminance wherein a light attenuating device is arranged near at least one end surface of an image guide arranged at one end in the focal plane of an image form... | 03/08/1988 |
| 4728173 | Optical filter for protective welding lens assemblies An optical filter for welding protective lens assemblies has two parallel electro-optical cells, at least one of the cells being of the nematic type with admixture of dye molecules with anisotropic light absorption. The filter comprises a filter sheet dis... | 03/01/1988 |
| 4694141 | Automatic welder's helmet An improved automatic welder's helmet having two pneumatic cylinders to effect the closing of the helmet's dark eye lens prior to energizing the welding system for striking the welding arc, and further to maintain the dark eye lens closed until after the ... | 09/15/1987 |
| 4686711 | Eye protection device for welder protection equipment An eye protection device for the window of a welding hood or shield includes a first stationary screen portion and a second screen portion which is reciprocable toward and away from a position in the window. A drive for the movable screen portion is conne... | 08/18/1987 |
| 4658113 | Device and method for protecting optical means from contaminated gases A device and method for protecting optical means from contaminated gases, in which a substantially laminar flow of clean gas is passed over the surface of the optical means to be protected that is exposed to the contaminated gases.... | 04/14/1987 |
| 4638146 | Method of protecting eyes from welding rays in arc welding and apparatus therefor A method of protecting eyes from welding rays in arc welding and an apparatus therefor are disclosed which are capable of closing a filter plate over a period from right before the generation of arc welding rays to the termination of the generation to ful... | 01/20/1987 |
| 4555614 | Weld metal cooling rate indicator system A weld metal cooling rate indication system is provided for a welding mace. The welding machine has a torch which is capable of producing a weld bead and has a speed sensor which senses the speed at which the torch travels as selected by an operator. The... | 11/26/1985 |
| 4418267 | Protection apparatus An automatic electrically operated protective system protects a welder from harmful light rays and sputtering emanating from the weld zone. An electric circuit controls a light shield means to assume either an open or closed condition. The electric circui... | 11/29/1983 |
| 4379962 | Support structure for plasma arc cutting torch shield A shield for a plasma arc torch is carried by a support mounted so as to be easily disassembled, to permit inspection and/or servicing of components surrounded by the shield by merely lifting up on the support to disengage a pair of projections at the opp... | 04/12/1983 |
| 4332004 | Lighting system for use on a welder helmet A lighting system for a welders helmet which includes a high intensity, high Kelvin temperature electric light source attached to the face shield for directing a high energy, high Kelvin temperature light beam forwardly of the viewing port, and an energiz... | 05/25/1982 |
