Abstract: A protective enclosure for an electronic device includes a top member adapted to be removably coupled to a bottom member to enclose the electronic device. A first back engagement feature is disposed on an inside surface of a perimeter wall portion of the bottom member, and the first back engagement feature is adapted to engage a first front engagement feature disposed on an inner perimeter wall of the top member to removably secure the top member to the bottom member. A second back engagement feature is disposed on an outside surface of the perimeter wall portion of the bottom member, and the second back engagement feature is adapted to engage a second front engagement feature disposed on an outer perimeter wall of the top member to further removably secure the top member to the bottom member.

Abstract: A protective enclosure for an electronic device includes a top member adapted to be removably coupled to a bottom member to enclose the electronic device. A first back engagement feature is disposed on an inside surface of a perimeter wall portion of the bottom member, and the first back engagement feature is adapted to engage a first front engagement feature disposed on an inner perimeter wall of the top member to removably secure the top member to the bottom member. A second back engagement feature is disposed on an outside surface of the perimeter wall portion of the bottom member, and the second back engagement feature is adapted to engage a second front engagement feature disposed on an outer perimeter wall of the top member to further removably secure the top member to the bottom member.

Abstract: This disclosure presents a connector assembly for providing a waterproof connection to a case for an electronic device. The connector assembly includes a connector body, an electrical cable, and an electrical conductor. The electrical conductor is electrically connected to the electrical cable and electrically engages the installed electronic device to convey at least one of data and power between the installed electronic device and the electrical cable. The connector assembly also includes an outer sleeve configured to freely rotate around the connector body and further configured to removably connect the connector assembly to the case. The outer sleeve includes a securing region to removably secure the connector assembly to the case, an inner gasket to seal an inner sealing interface of the outer sleeve with the connector body, and an outer gasket positioned to seal an outer sealing interface of the outer sleeve with the case.

Abstract: This disclosure presents a connector assembly for providing a waterproof connection to a case for an electronic device. The connector assembly includes a connector body, an electrical cable, and an electrical conductor. The electrical conductor is electrically connected to the electrical cable and electrically engages the installed electronic device to convey at least one of data and power between the installed electronic device and the electrical cable. The connector assembly also includes an outer sleeve configured to freely rotate around the connector body and further configured to removably connect the connector assembly to the case. The outer sleeve includes a securing region to removably secure the connector assembly to the case, an inner gasket to seal an inner sealing interface of the outer sleeve with the connector body, and an outer gasket positioned to seal an outer sealing interface of the outer sleeve with the case.

Abstract: This disclosure relates generally to waterproof electronic assemblies, such as earphones, earphone electronic controls, and waterproof connectors, as well as an apparatus for retaining an earpiece in the ear during physical movement and exercise. In various instances, the apparatus may include a thinned region a posterior arch and ribs to allow deformation of the earmold and facilitate securing of the earmold in the concha bowl of the ear. Electronic component assemblies described include electronic components, a cable, and a housing configured to house the electronic components. The housing also includes a cable aperture through which the cable extends, and a compression backstop extending into the interior of the housing. The electronic assembly may also include a gasket holder. The assembly also includes a gasket surrounding the cable, a compression wedge at least partially surrounding the circumference of the cable, and a crimp bead positioned proximate the compression backstop.

Abstract: A cylinder cooling construction includes a cylinder liner with a sidewall, exhaust and intake ports opening through the sidewall, a bore, and a plurality of feed channels that are formed with and extend along the sidewall from a central band of the cylinder toward the exhaust and intake ports. A sleeve covering the sidewall includes a plurality of impingement jet ports that are arranged in at least one sequence extending around the central band and that are in liquid communication with the plurality of feed channels. An annular member disposed between the liner and the sleeve reinforces the central band. The sleeve further includes an inside surface with spaced-apart annular recesses that with the sidewall define liquid coolant reservoirs in the vicinity of the ports that are in liquid communication with the feed channels.

Abstract: This disclosure relates generally to waterproof electronic assemblies, such as earphones, earphone electronic controls, and waterproof connectors, as well as an apparatus for retaining an earpiece in the ear during physical movement and exercise. In various instances, the apparatus may include a thinned region a posterior arch and ribs to allow deformation of the earmold and facilitate securing of the earmold in the concha bowl of the ear. Electronic component assemblies described include electronic components, a cable, and a housing configured to house the electronic components. The housing also includes a cable aperture through which the cable extends, and a compression backstop extending into the interior of the housing. The electronic assembly may also include a gasket holder. The assembly also includes a gasket surrounding the cable, a compression wedge at least partially surrounding the circumference of the cable, and a crimp bead positioned proximate the compression backstop.

Abstract: A cylinder cooling construction includes a cylinder liner with a sidewall, exhaust and intake ports opening through the sidewall, a bore, and a plurality of feed channels that are formed with and extend along the sidewall from a central band of the cylinder toward the exhaust and intake ports. A sleeve covering the sidewall includes a plurality of impingement jet ports that are arranged in at least one sequence extending around the central band and that are in liquid communication with the plurality of feed channels. An annular member disposed between the liner and the sleeve reinforces the central band. The sleeve further includes an inside surface with spaced-apart annular recesses that with the sidewall define liquid coolant reservoirs in the vicinity of the ports that are in liquid communication with the feed channels.

Abstract: A cylinder cooling construction includes a cylinder liner with a sidewall, exhaust and intake ports opening through the sidewall, a bore, and a plurality of feed channels that are formed with and extend along the sidewall from a central band of the cylinder toward the exhaust and intake ports. A sleeve covering the sidewall includes a plurality of impingement jet ports that are arranged in at least one sequence extending around the central band and that are in liquid communication with the plurality of feed channels. An annular member disposed between the liner and the sleeve reinforces the central band. The sleeve further includes an inside surface with spaced-apart annular recesses that with the sidewall define liquid coolant reservoirs in the vicinity of the ports that are in liquid communication with the feed channels.

Abstract: A cylinder cooling construction includes a cylinder liner with a sidewall, exhaust and intake ports opening through the sidewall, a bore, and a plurality of feed channels that are formed with and extend along the sidewall from a central band of the cylinder toward the exhaust and intake ports. A sleeve covering the sidewall includes a plurality of impingement jet ports that are arranged in at least one sequence extending around the central band and that are in liquid communication with the plurality of feed channels. An annular member disposed between the liner and the sleeve reinforces the central band. The sleeve further includes an inside surface with spaced-apart annular recesses that with the sidewall define liquid coolant reservoirs in the vicinity of the ports that are in liquid communication with the feed channels.

Abstract: An apparatus and a method for controlling swirl of air in a ported, two-stroke internal combustion engine include deflecting air into the intake port of a ported cylinder by an array of vanes disposed around the cylinder's intake port. The angle of deflection establishes the swirl of air in the cylinder. Swirl is varied by changing the angular positions of the vanes under the control of a vane drive mechanism coupled to an actuator. A swirl control mechanization controls vane angular position in response to engine operating parameters.