A method of applying a touch film to a rigid surface having a compound curvature includes applying a transparent pressure sensitive adhesive to a facing surface of a touch film, placing the facing surface against the rigid surface, and rolling a roller over the touch film with enough pressure to activate the pressure sensitive adhesive and adhere the touch film to the rigid surface. The roller has an exterior layer of low durometer material to conform to the compound curvature of the rigid surface and to minimize damage to components on the touch film.

A display protector attachment apparatus for a foldable electronic device according to the present disclosure includes: a frame unit including a frame-first end member at one end and a frame-second end member at the other end and configured to support and accommodate the foldable electronic device between the frame-first end member and the frame-second end member; and an inclination-forming fixing unit connected to the frame-second end member and configured to align a protector film assembly to be arranged inclinedly with respect to the foldable display unit of the foldable electronic device by varying mounting heights for both ends of the protector film assembly including a display protector that is to be attached to the foldable electronic device.

A screen protector installation tool includes a first portion, a second portion, and an elastic element. The first portion and the second portion each have corner alignment features. The second portion slidably engages the first portion to form a receiving area for receiving an electronic device between the corner alignment features to align the electronic device in the receiving area of the screen protector installation tool when one of the first portion and the second portion is moved relative to the other of the first portion and the second portion. The elastic element is configured to apply a force to move the one of the first portion and the second portion relative to the other of the first portion and the second portion to capture the electronic device in the receiving area between the corner alignment features.

A welding apparatus is suitable for welding polymeric materials, and particularly but not exclusively those that may be thin or brittle. A welding apparatus is provided for welding polymeric materials along a weld zone of the polymeric material. The welding apparatus has a carrier for supplying heat to the weld zone to cause melting of the polymeric material, wherein the heating element is arranged to reciprocate relative to the carrier between a retracted and an extended configuration, such that as the element moves from the retracted to the extended configuration the heating element melts and penetrates the surface of the polymeric material. The carrier also has a trailing contact surface trailing the heating element along the weld zone arranged to constrain molten polymeric material in the weld zone. The heating element is also arranged to reciprocate relative to the trailing contact surface.

Disclosed is a protective film, which includes: a protective film sheet; a protective layer; and a release layer, a lead tab is connected to an end part of the release layer, and a positioning mechanism is arranged on the protective layer to align the protective film sheet with a screen of an electronic device.

A method of fixing a membrane to a surface is disclosed. The method includes affixing a metallic washer having a heat-activated adhesive layer on a surface; arranging a membrane on top of the surface and the heat-activated adhesive layer of the metallic washer; heating the metallic washer to activate the heat-activated adhesive layer such that the membrane is fixable to the metallic washer; positioning a magnetic clamping heat sink assembly on the membrane; magnetically clamping the magnetic clamping heat sink assembly to the metallic washer causing the magnetic clamping heat sink assembly to apply a force against the membrane when the magnetic clamping heat sink assembly sufficiently overlaps the metallic washer to form a secure bond; and cooling the metallic washer, the heat-activated adhesive layer, and the membrane by removing heat through the magnetic clamping heat sink assembly.

A welder for joining two polymeric sheets together using a wedged heating element allows for a heating profile on opposite faces of the heating element to be varied by controlling where each of the polymeric sheets contacts the corresponding face.

A method of providing covers over at least a portion of a roof of a storm damaged built structure that includes the steps of: applying a sheet of heat shrinkable film over the portion of the roof, the sheet having a leading edge and a trailing edge and being a film of low density polyethylene including shrinking resins; wrapping portions of the leading edge around a first batten and attaching the first batten to the underside of a first eave or to the facia of the built structure; wrapping portions of the trailing edge around a second batten and attaching the second batten to the underside of a second eave or to the facia of the built structure at a location different than the first batten; and heating the sheet of heat shrinkable film to bring the film into conformity with the portion of the roof, wherein the heating step shrinks the sheet of film tight against the built structure to cover over the portion of the roof.

A strapping apparatus for strapping articles with a strapping band having a base plate provided for arranging on an article, a tensioning device with which a band tension can be applied to the strapping band, and a sealing device for permanently connecting two band layers to each other.

A tool for facilitating attaching a screen protector of a screen protector assembly to a display of an electronic device includes a tray, an alignment block, and a spring. The tray includes a first corner alignment feature, a second corner alignment feature, and an engagement feature for engaging the screen protector assembly. The tray also includes a movable arm for holding the screen protector assembly on the engagement feature. The alignment block is slidably attached to the tray to define an interior of the tool. The alignment block includes a first corner alignment feature, a second corner alignment feature, and an engagement feature for engaging the screen protector assembly. The spring is configured to push the alignment block toward the first and second corner alignment features of the tray to center the electronic device is in the tool for the attaching of the screen protector to the electronic device.