Abstract: A cover for a hydraulic master cylinder. The cover includes an interface configured to sealingly engage with a master cylinder body to jointly define a hydraulic fluid reservoir. An electronic display unit is positioned at least partially within the cover and viewable from outside the cover.

Abstract: A cover for a hydraulic master cylinder. The cover includes an interface configured to sealingly engage with a master cylinder body to jointly define a hydraulic fluid reservoir. An electronic display unit is positioned at least partially within the cover and viewable from outside the cover.

Abstract: A dipstick that measures and externally indicates the temperature and level of a fluid within a fluid reservoir. For example, in one embodiment the dipstick measures and externally indicates the oil temperature and oil level of oil within an oil reservoir of a motorcycle or other vehicle. The fluid temperature and level are indicated on an externally viewable portion of the dipstick, such as an exposed end or cap. The viewable portion indicates the fluid level when the fluid temperature is within guidelines recommended by the manufacturer or when the fluid temperature reaches a minimum threshold temperature.

Abstract: A reciprocating saw comprising a reciprocatable spindle having an end adapted to receive a saw blade, and a blade clamp mechanism connected to the spindle and adapted to attach the saw blade to the spindle. The blade clamp mechanism includes an actuating member mounted on the end of the spindle, a locking member operatively associated with the actuating member, and a biasing member interconnected with the actuating member for biasing the actuating member toward an engaged position. A cover encloses a substantial portion of the biasing member. A housing, made from a thermally insulative material, is mounted to the actuating member. An ejecting member is interconnected with the spindle and is capable of engaging the saw blade such that the saw blade is urged away from the end of the spindle.