Abstract: Improvements to helmet assemblies with flip-type welding visors are provided. In one embodiment, a return mechanism applies a predetermined force to a wireform spring. The return mechanism applies a force between a welding visor and a grinding shell, while concurrently reducing rotational forces needed to flip up the welding visor from the grinding shell. In another embodiment, a combination of an adjustable spring and a slide stop provides an adjustable stopping position for the wireform spring. The adjustable stopping position permits adjustable balancing of the forces that are applied to the wireform spring.

Abstract: A helmet comprises a shell with an integrated panel tab that is formed by cutting a pattern into the shell. The helmet further comprises an enclosure located interior to the shell and at a position that corresponds to the integrated panel tab. Within the enclosure are an electronic membrane, which is operatively coupled to the integrated panel tab, and a membrane force tab, which is operatively coupled to the electronic membrane. When pressure is applied to the integrated panel tab from the exterior of the shell (by, for example, a finger of a user), the integrated panel tab functions as a flexible actuator that presses the electronic membrane, thereby permitting control of helmet functions without any externally-protruding controls that can be inadvertently broken.

Abstract: Improvements to helmet assemblies with flip-type welding visors are provided. In one embodiment, a return mechanism applies a predetermined force to a wireform spring. The return mechanism applies a force between a welding visor and a grinding shell, while concurrently reducing rotational forces needed to flip up the welding visor from the grinding shell. In another embodiment, a combination of an adjustable spring and a slide stop provides an adjustable stopping position for the wireform spring. The adjustable stopping position permits adjustable balancing of the forces that are applied to the wireform spring.

Abstract: A helmet comprises a shell with an integrated panel tab that is formed by cutting a pattern into the shell. The helmet further comprises an enclosure located interior to the shell and at a position that corresponds to the integrated panel tab. Within the enclosure are an electronic membrane, which is operatively coupled to the integrated panel tab, and a membrane force tab, which is operatively coupled to the electronic membrane. When pressure is applied to the integrated panel tab from the exterior of the shell (by, for example, a finger of a user), the integrated panel tab functions as a flexible actuator that presses the electronic membrane, thereby permitting control of helmet functions without any externally-protruding controls that can be inadvertently broken.

Abstract: Helmet assemblies with flip-type welding visors are provided. A representative helmet assembly includes: a grinding shell having a grinding view port; a welding visor mounted to the grinding shell and having a welding view port; and a connector extending between the grinding shell and the welding visor. The welding visor is rotatable between lower and upper positions. In the lower position, the welding view port is aligned with the grinding view port. In the upper position, the welding visor is rotated toward the back of the grinding shell such that the line of sight of the wearer is unobstructed by the welding view port. Interaction of the grinding shell, the connector and the welding visor, responsive to rotation of the welding visor between the lower and upper positions, provides a biasing force to urge the welding visor towards a selected one of the positions.

Abstract: The adapter comprises a clip with a groove, and a rack that engages with the groove. The clip attaches securely to an edge of a fabric, for example, a panel on a baseball cap. The rack includes an angle adjuster, on which a brow guard, welding helmet, or other protective gear can be mounted.

Abstract: Protective head gear comprising a lower front strap, an upper front strap, a right side strap, and a left side strap. The right side strap comprises a right pivot point. The left side strap comprises a left pivot point. The lower front strap comprises a lower left attachment point that is pivotally attached to the left pivot point on the left side strap. The upper front strap comprises an upper left attachment point that is also pivotally attached to the left pivot point on the left side strap. The lower front strap comprises a lower right attachment point that is pivotally attached to the right pivot point on the right side strap. The upper front strap comprises an upper right attachment point that is also pivotally attached to the right pivot point on the right side strap.

Abstract: The adapter comprises a clip with a groove, and a rack that engages with the groove. The clip attaches securely to an edge of a fabric, for example, a panel on a baseball cap. The rack includes an angle adjuster, on which a brow guard, welding helmet, or other protective gear can be mounted.

Abstract: Helmet assemblies with flip-type welding visors are provided. A representative helmet assembly includes: a grinding shell having a grinding view port; a welding visor mounted to the grinding shell and having a welding view port; and a connector extending between the grinding shell and the welding visor. The welding visor is rotatable between lower and upper positions. In the lower position, the welding view port is aligned with the grinding view port. In the upper position, the welding visor is rotated toward the back of the grinding shell such that the line of sight of the wearer is unobstructed by the welding view port. Interaction of the grinding shell, the connector and the welding visor, responsive to rotation of the welding visor between the lower and upper positions, provides a biasing force to urge the welding visor towards a selected one of the positions.

Abstract: The adapter comprises a clip with a groove, and a rack that engages with the groove. The clip attaches securely to an edge of a fabric, for example, a panel on a baseball cap. The rack includes an angle adjuster, on which a brow guard, welding helmet, or other protective gear can be mounted.

Abstract: The adapter comprises a clip with a groove, and a rack that engages with the groove. The clip attaches securely to an edge of a fabric, for example, a panel on a baseball cap. The rack includes an angle adjuster, on which a brow guard, welding helmet, or other protective gear can be mounted.

Abstract: A combination portable gas barbecue and portable simulation fireplace includes a cooking vessel having imitation fireplace logs and a gas burner mounted on a lift-out log grate. A window is mounted in the front of the cooking vessel to allow direct viewing of the imitation logs and flames and of the underside of the food being cooked. Air inlet and outlets cause convection currents to flow away from the viewing window and out side vents formed by gaps between an oversized hood and the cooking vessel. An air convection system is set up by providing an air inlet below the window and outlet air gaps between the hood and the cooking vessel. A deflector is provided over the viewing window to prevent grease drippings from soiling the window or falling into the air inlet.

Abstract: A combination portable gas barbecue and portable simulation fireplace includes a cooking vessel having imitation fireplace logs and a gas burner mounted on a lift-out log grate. A window is mounted in the front of the cooking vessel to allow direct viewing of the imitation logs and flames and of the underside of the food being cooked. Air inlet and outlets cause convection currents to flow away from the viewing window and out side vents formed by gaps between an oversized hood and the cooking vessel. An air convection system is set up by providing an air inlet below the window and outlet air gaps between the hood and the cooking vessel. A deflector is provided over the viewing window to prevent grease drippings from soiling the window or falling into the air inlet. A removable heat exchanger heats up air by contact with the walls of the cooking vessel and directs the resulting warm air to the front of the cooking vessel.

Abstract: A blend for producing refractory imitation fireplace objects comprises between 30% and 50% amorphous aluminum siliceous mineral silicate, between 1% and 5% fibre and between 40% and 60% high temperature cement. A method of producing a slurry for casting the refractory objects consists of blending the amorphous aluminum siliceous mineral silicate, the fibre, an aggregate and colorant, adding and blending a high temperature cement and a dispersant and adding between 35% and 45% by weight of water.