Abstract: This piece of machinery (1) comprises a system for lifting people or loads (5) and a first stand-alone electrical power source that is used to make the piece of machinery function. A second location (8) allows an optional second stand-alone electrical power source (15) to be removably accommodated. The latter is selectable from a plurality of different second sources not exclusively made up of engine generators and not exclusively made up of devices for storing electrical power. It for example allows the first stand-alone electrical power source to be recharged or the piece of machinery to be powered together therewith. The piece of machinery comprises a system for identifying the second stand-alone electrical power source among the plurality of second sources accommodated in the second location (8). On-board electronics manage the delivery of electrical power to the piece of machinery by the second source depending on the second source identified.

Abstract: Embodiments of the invention are directed to input devices configured for use with computing devices. The present invention relates to methods and devices for establishing, maintaining and managing, wireless connections between an input device and one or more host computing devices running one of a plurality of operating systems. The input device may be configured to analyze data received from the host computing devices to automatically or manually determine an operating system running on the host computing devices and configure the input device for proper functionality with the determined operating system.

Abstract: Embodiments of the invention are directed to input devices configured for use with computing devices. The present invention relates to methods and devices for establishing, maintaining and managing, wireless connections between an input device and one or more host computing devices running one of a plurality of operating systems. The input device may be configured to analyze data received from the host computing devices to automatically or manually determine an operating system running on the host computing devices and configure the input device for proper functionality with the determined operating system.

Abstract: A keyboard includes a plurality of keys, and a keyframe into which the plurality of keys are assembled. Each of the keys includes: i) a plunger on which a character is printed, and ii) a keycap made of a transparent material. The keycap covers at least a portion of a top of the plunger.

Abstract: A keyboard includes a plurality of keys, and a keyframe into which the plurality of keys are assembled. Each of the keys includes: i) a plunger on which a character is printed, and ii) a keycap made of a transparent material. The keycap covers at least a portion of a top of the plunger.

Abstract: A key module for a keyboard includes a key having a guiding plunger, and a key housing having a set of walls with an opening formed by the set of walls. The opening formed by the set of walls is configured to receive the guiding plunger. The set of walls includes at least eight guiding surfaces configured to contact the guiding plunger. The guiding plunger is configured to contact the eight guiding surfaces as the guiding plunger moves up and down in the opening.

Abstract: A key module for a keyboard includes a key having a guiding plunger, and a key housing having a set of walls with an opening formed by the set of walls. The opening formed by the set of walls is configured to receive the guiding plunger. The set of walls includes at least eight guiding surfaces configured to contact the guiding plunger. The guiding plunger is configured to contact the eight guiding surfaces as the guiding plunger moves up and down in the opening.

Abstract: A keyboard includes a plurality of keys, and a keyframe into which the plurality of keys are assembled. Each of the keys includes: i) a plunger on which a character is printed, and ii) a keycap made of a transparent material. The keycap covers at least a portion of a top of the plunger.