A welder's garment assembly for protecting a welder from heat and electricity includes a garment that can be worn by a user. The garment is comprised of a pair of insulating layers that are sandwiched between a pair of covering layers. Each of the insulating layers is comprised of an energy absorbing material to protect the user during welding. A respective one of the covering layers is comprised of a resilient material to protect the insulating layers from abrasion. Furthermore, a respective one of the covering layers is comprised of a deformable material for enhancing comfort for wearing the garment.

Methods and systems of detection of presence in and delivery to location are provided. A method detects a presence of a mobile device within a perimeter of a geographic region. The method searches a database to determine whether the first mobile device is associated with any existing account. Responsive to determining that the mobile device is associated with a first account, the method searches the database to determine whether there is any pending task associated with the first account. Responsive to determining that there is a pending task associated with the first account, the method transmits a first message indicating the detection of presence of the mobile device associated with the first account. The method determines that the mobile device is at least approximately at a first location of a plurality of predefined locations within the perimeter. The method transmits information associated with the first location to the computing device.

Methods and systems of detection of presence in and delivery to location are provided. A method detects a presence of a mobile device within a perimeter of a geographic region. The method searches a database to determine whether the first mobile device is associated with any existing account. Responsive to determining that the mobile device is associated with a first account, the method searches the database to determine whether there is any pending task associated with the first account. Responsive to determining that there is a pending task associated with the first account, the method transmits a first message indicating the detection of presence of the mobile device associated with the first account. The method determines that the mobile device is at least approximately at a first location of a plurality of predefined locations within the perimeter. The method transmits information associated with the first location to the computing device.

The invention addresses the problem of providing a cloth and a protective product, which are excellent not only in flame retardancy but also in protection performance against electric arcs, and can further be provided with any color appearance. As a means for resolution, in a cloth including a flame-retardant fiber, a UV absorber or carbon particles are contained in the cloth, and the cloth is configured to have a lightness index L-value of 25 or more.

A wireless anti-static device is disclosed, including an electronic sensing circuit that measures the polarity and electrostatic potential of the subject relative to its surroundings. Ion guns of positive and negative polarities are able to transfer an arbitrary quantity and polarity of charge from the subject by ejecting ionized air molecules into the surrounding environment. A control unit is programmed to trigger the appropriate ion gun when a corresponding charge is measured on the body, in order to continually maintain the net charge on the body below a desired threshold. The subject is thus effectively grounded relative to its environment without requiring physical tethers to ground.

A wireless anti-static device is disclosed, including an electronic sensing circuit that measures the polarity and electrostatic potential of the subject relative to its surroundings. Ion guns of positive and negative polarities are able to transfer an arbitrary quantity and polarity of charge from the subject by ejecting ionized air molecules into the surrounding environment. A control unit is programmed to trigger the appropriate ion gun when a corresponding charge is measured on the body, in order to continually maintain the net charge on the body below a desired threshold. The subject is thus effectively grounded relative to its environment without requiring physical tethers to ground.

A cardiopulmonary protective garment for providing limited protection from lightning is fabricated of a waterproof/breathable fabric, such as a Gore-Tex® laminate or equivalent. The garment keeps a wearer's body dry and supports a lightning flashover event when moist or wet on the outside, protecting the cardiopulmonary system. Strips of an electrically conductive fabric, such as Shieldex® or equivalent, can be attached in various arrangements on a posterior outer surface of the garment for igniting a rapid flashover. The conductive strips also provide attractive design details. In some embodiments, an inner heat shielding and flame resistant layer, made of a fabric such as NOMEX® or equivalent, can increase protection against burning caused by lightning and a flashover. Other embodiments may include a grounding strap electrically connected to the conductive strips for carrying charge to a local ground plane, such as the Earth; a cape-like drape of water-absorbing fabric having an electrically conductive element attached to a posterior side in general alignment with the wearer's spine; and a water-proof backpack having electrically conductive elements positioned to promote rapid flashover.

A cardiopulmonary protective garment for providing limited protection from lightning is fabricated of a waterproof/breathable fabric, such as a Gore-Tex® laminate or equivalent. The garment keeps a wearer's body dry and supports a lightning flashover event when moist or wet on the outside, protecting the cardiopulmonary system. Strips of an electrically conductive fabric, such as Shieldex® or equivalent, can be attached in various arrangements on a posterior outer surface of the garment for igniting a rapid flashover. The conductive strips also provide attractive design details. In some embodiments, an inner heat shielding and flame resistant layer, made of a fabric such as NOMEX® or equivalent, can increase protection against burning caused by lightning and a flashover. Other embodiments may include a grounding strap electrically connected to the conductive strips for carrying charge to a local ground plane, such as the Earth; a cape-like drape of water-absorbing fabric having an electrically conductive element attached to a posterior side in general alignment with the wearer's spine; and a water-proof backpack having electrically conductive elements positioned to promote rapid flashover.

The aim of the invention is to prevent undesired false triggering of a safety device, which protects a person from electric shock as a result of unintentional contact with voltage-carrying or current-carrying parts. This aim is achieved in that a triggering sensitivity (E.sub.A) of the safety device is changed depending on a determined body resistance (R.sub.K) of the person wearing the safety device.

The aim of the invention is to prevent undesired false triggering of a safety device, which protects a person from electric shock as a result of unintentional contact with voltage-carrying or current-carrying parts. This aim is achieved in that a triggering sensitivity (E.sub.A) of the safety device is changed depending on a determined body resistance (R.sub.K) of the person wearing the safety device.