Abstract: A battery coolant reservoir assembly can include an exterior structure having an interior surface defining an interior space, a flexible coolant retaining pouch coupled to a manifold, and a battery module disposed within the coolant retaining pouch. The coolant retaining pouch can be disposed in the interior space of the exterior structure. Related systems and methods are also provided.

Abstract: Apparatus, systems and methods for use in imparting linear tonearm tracking for a record player are provided. The systems can include a joint member having three separate movable connections to a tonearm, guiding slot and slidable pivot base, wherein a rear pivot location of the tonearm is on the slidable pivot base. A movement of the tonearm can cause the joint member to adjust a position of the slidable pivot base, as a function of a configuration of the guiding slot, and this combination of interactions is combined to impart substantial linear tracking for the tonearm.

Abstract: Methods, apparatus and systems are disclosed for automatically engaging and disengaging connectors for equipment modules. The connectors can be engaged by operating a rotating shaft to draw opposite connector sections together. A guide pin and socket are provided to guide the alignment of connectors and shaft and to trigger operation of the rotating shaft.

Abstract: Methods, systems and apparatus for cleaning phonograph records are disclosed. In some embodiments, a phonograph record can be cleaned in a liquid basin using ultrasonic transducers, wherein the liquid basin has a dampening structure. Also, the ultrasonic transducers are disposed on a flexible wall for reducing vibrations of the cleaner.

Abstract: A conduit coupling can have a male portion and a female portion, with each portion having an internal biasing member. When the male portion is disconnected from the female portion, the internal biasing member in the male portion can cause a seal on a moveable plug to be biased against a lip of a stationary wall member to seal liquid from leaking out of the male portion. Also, the internal biasing member in the female portion can cause a lip of a moveable wall member to be biased against a seal that is connected to a stationary plug. Both the stationary plug and moveable plug can be connected to retaining portions by strips that are disposed away from an axis of the conduit coupling.

Abstract: A conduit coupling can have a male portion and a female portion, with each portion having an internal biasing member. When the male portion is disconnected from the female portion, the internal biasing member in the male portion can cause a seal on a moveable plug to be biased against a lip of a stationary wall member to seal liquid from leaking out of the male portion. Also, the internal biasing member in the female portion can cause a lip of a moveable wall member to be biased against a seal that is connected to a stationary plug. Both the stationary plug and moveable plug can be connected to retaining portions by strips that are disposed away from an axis of the conduit coupling.

Abstract: A conduit coupling can have a male portion and a female portion, with each portion having an internal biasing member. When the male portion is disconnected from the female portion, the internal biasing member in the male portion can cause a seal on a moveable plug to be biased against a lip of a stationary wall member to seal liquid from leaking out of the male portion. Also, the internal biasing member in the female portion can cause a lip of a moveable wall member to be biased against a seal that is connected to a stationary plug. Both the stationary plug and moveable plug can be connected to retaining portions by strips that are disposed away from an axis of the conduit coupling.