Abstract: A conventional submersible camera utilizes an O-ring to waterproof the interior of the camera housing. Larger components are required to accommodate this O-ring, which increases the cost and size of the submersible camera. Disclosed embodiments utilize a sealing ring between a circumferential edge of a lens dome and the housing. These embodiments may also utilize a circular printed circuit board that lies in a plane that is perpendicular to the longitudinal axis of the submersible camera. Advantageously, these features enable the submersible camera to be more compact and manufactured at lower cost.

Abstract: A vertically oriented support frame engages a vertically oriented traveling frame for movement between a retracted position, wherein the traveling frame is positioned in front of the support frame, and an extended position wherein the traveling frame is positioned primarily above the support frame. An electric motor is fixed to the support frame and rotates a drive screw engaged with the support frame while the traveling frame is engaged with the drive screw so as to be moved vertically as the drive screw rotates. Upper and lower limit switches sense when the traveling frame is in the extended position and in the retracted position and send signals to a motor control to stop the motor.

Abstract: Hydromagnesite-magnesium hydroxide compositions which, when used as fillers in smoking article wrappers, significantly reduce the amount of sidestream smoke produced by the burning smoking article while providing the smoking article with good subjective characteristics.

Abstract: Hydromagnesite-magnesium hydroxide compositions are prepared which, when used as fillers in smoking article wrappers, significantly reduce the amount of sidestream smoke produced by the burning smoking article while providing the smoking article with good subjective characteristics.

Abstract: An electric connector fastener including a female retaining plate made for fastening up with a male retaining plate, and a press block fastened to the female retaining plate for release control, the female retaining plate having a hook hole extended from an angled front end thereof adapted for receiving the male retaining plate, an arched notch at an inner side of its angled front end in communication with the hook hole for engagement with a raised portion of the male retaining plate, an axle housing transversely disposed in the middle for installation, a returned springy tail having an angled end piece, and two retaining holes longitudinally spaced between the springy tail and the axle housing, the press block having a longitudinal track defined within a bottom channel thereof into which a part of the female retaining plate is inserted, and two sloping retainer blocks spaced inside the bottom channel and respectively forced into engagement with the retaining holes of the female retaining plate.

Abstract: A method of making a double-head signal connector, which includes the steps of: i) preparing a signal line distribution plate; ii) inserting the leading ends of the pairs of signal lines of a Transmission Data Bus Line through an elongated center slot on the signal line distribution plate and then turning them backwards from the top and the bottom respectively; iii) preparing a holding down plate; iv) fastening the holding down plate to the signal line distribution plate to hold down the distributed signal lines; v) preparing a female header; fastening the female header to the holding down plate permitting the contacts of the female header to make a respective contact with the conductors of signal lines; vii) preparing a male header; viii) fastening the leading ends of the signal lines to the forked tails of the contacts of the male header permitting the contacts of the male header to make a respective electric contact with the signal lines; ix) fastening two fastening plates to the male header to hold down t