Abstract: Quick-connect assemblies and hydration systems incorporating the same. The hydration system includes a fluid reservoir and may be housed within a pack. Drink fluid is drawn from the reservoir through a drink tube to a mouthpiece. In some embodiments, the drink tube is connected to the reservoir at an exit port, the hydration system includes a manually actuated on/off valve, a filter, a pump, and/or a bite-actuated mouthpiece. The quick-connect assembly fluidly interconnects components of the hydration system and is configured to quickly release, and permit reattachment of, the detached components or replacement components. In some embodiments, the replacement components enable different performance from the detached components. In some embodiments, the quick-connect assembly is adapted to selectively couple a bite-actuated mouthpiece and a gas mask adapter to the drink tube. In some embodiments, at least a portion, if not the entire, hydration system is formed from a chemically resistant material.

Abstract: A personal hydration system with component connectivity. The hydration system includes a fluid reservoir that may be housed within a pack. Drink fluid is drawn from the reservoir through a drink tube in fluid communication with the reservoir at one end and with a mouthpiece at the other. In some embodiments, the hydration system includes a manually actuated on/off valve downstream from the reservoir and/or a bite-actuated mouthpiece. The hydration system further includes a quick-connect assembly that fluidly interconnects components of the hydration system and which is configured to quickly release, and permit reattachment of, the detached or replacement components. In some embodiments, the hydration system includes a quick-connect assembly that is adapted to selectively couple a bite-actuated mouthpiece and a gas mask adapter to the hydration system's drink tube. In some embodiments, at least a portion, if not the entire, hydration system is formed from a chemically resistant material.

Abstract: Quick-connect assemblies and hydration systems incorporating the same. The hydration system includes a fluid reservoir and may be housed within a pack. Drink fluid is drawn from the reservoir through a drink tube to a mouthpiece. In some embodiments, the drink tube is connected to the reservoir at an exit port, the hydration system includes a manually actuated on/off valve, a filter, a pump, and/or a bite-actuated mouthpiece. The quick-connect assembly fluidly interconnects components of the hydration system and is configured to quickly release, and permit reattachment of, the detached components or replacement components. In some embodiments, the replacement components enable different performance from the detached components. In some embodiments, the quick-connect assembly is adapted to selectively couple a bite-actuated mouthpiece and a gas mask adapter to the drink tube. In some embodiments, at least a portion, if not the entire, hydration system is formed from a chemically resistant material.

Abstract: A personal hydration system with component connectivity. The hydration system includes a fluid reservoir that may be housed within a pack. Drink fluid is drawn from the reservoir through a drink tube in fluid communication with the reservoir at one end and with a mouthpiece at the other. In some embodiments, the hydration system includes a manually actuated on/off valve downstream from the reservoir and/or a bite-actuated mouthpiece. The hydration system further includes a quick-connect assembly that fluidly interconnects components of the hydration system and which is configured to quickly release, and permit reattachment of, the detached or replacement components. In some embodiments, the hydration system includes a quick-connect assembly that is adapted to selectively couple a bite-actuated mouthpiece and a gas mask adapter to the hydration system's drink tube. In some embodiments, at least a portion, if not the entire, hydration system is formed from a chemically resistant material.

Abstract: A low level, low power, direct coupled integrated class B amplifier having a dual channel three stage preamplifier and a pair of output transistors, one for each channel. In each channel, a DC negative feedback loop connects the collector of the last stage preamplifier transistor to the base of the first stage preamplifier transistor to regulate the DC levels, and a resistive AC negative feedback loop connects the output transistor collector to the first preamplifier transistor collector to reduce the gain dependence of the channel on the current through the output transistor, thus enabling very low idle currents for the output transistors and also providing low distortion output. The resistor in each AC feedback loop is a floating tub resistor to enable it to be taken more than 0.6 volts above the battery voltage. Common mode rejection is provided for at least two of the three preamplifier transistors of each channel.

Abstract: A bicycle frame equipped with two, in line, runner attachments and a thrust producing device for use on snow or ice.

Abstract: An integrated circuit direct coupled amplifier capable of operating from a single battery cell, has: a differential amplifier input stage having an input transistor and a second transistor; an intermediate gain stage; and an output stage. Signal is fed back from the output stage to the base of the second transistor of the differential amplifier, through a negative feedback circuit. Current sources are connected as loads in the collector circuits of the input transistor of the differential amplifier and the transistor of the intermediate gain stage. The current sources are biased by separate bias sources, to improve stability. The bias source for the intermediate gain stage current source also biases a current source for the feedback circuit. A starting circuit is connected to the bias source for the intermediate gain stage and provides self starting for the current sources.

Abstract: A partition system formed of a plurality of partition panel units held in erect position by an upper securing member and a lower securing member. The lower securing member is fixed to the floor and has a mounting surface in face-to-face relationship with the panel units. The system permits easy erecting of panel units from one side of the wall by slipping the top of each unit into the upper securing member, pivoting the unit into each face-to-face relationship with the mounting surface, adjusting the unit vertically and anchoring the unit in position. An open passage is formed beneath the panel units in the partition structure. This passage easily accommodates various services, such as wiring, and after such services are inserted, it is closed by means of a supporting plate which supports the side of the panel units remote from the mounting surface.