Abstract: A deck hatch assembly for marine craft is formed in the upper deck surface of the marine craft on the port and starboard sides. A submerged surface is integrally formed in the upper deck surface, being provided with a hatch opening surrounded by a raised peripheral ridge. The raised ridge, together with the submerged surface and the upper deck surface, forms a drain channel for directing water away from the stern of the marine craft. A pivotably mounted hatch cover is provided for normally sealing and closing off the hatch opening. The hatch cover may be raised upwardly from the bulkhead of the marine craft toward the stern for the purpose of providing ventilation to below deck compartments and for allowing access to the upper deck surface from below deck areas. A pair of gas spring assemblies is provided for positively and automatically retaining the hatch cover in the closed, or any one of a number of open positions.

Abstract: An outboard engine bracing system for utilization on a boat hull having a transom. The outboard engine bracing system comprises an outboard extension formed integral with the boat hull and being located above the actual transom of the hull and extending rearwardly beyond the transom. A plurality of brackets are interposed between the transom and the outboard extension, being formed integral with the transom and the outboard extension. The outboard engine bracing system is adapted to have mounted thereon a conventional outboard motor.

Abstract: An alarm system used in conjunction with a circuit breaker panel box indicating the presence of an overload condition. At least one sensor is provided in proximity with the circuit breaker box but is not physically connected thereto. This sensor senses various parameters which are inherent in an overload condition or which are produced by various circuitry connected to the circuit breaker which are enabled during an overload condition. This alarm system is set by closing the door of the circuit breaker panel box.

Abstract: An alarm system used in conjunction with a circuit breaker panel box indicating the presence of an overload condition. At least one sensor is provided in proximity with the circuit breaker box but is not physically connected thereto. This sensor senses various parameters which are inherent in an overload condition or which are produced by various circuitry connected to the circuit breaker which are enabled during an overload condition. This alarm system is set by closing the door of the circuit breaker panel box.

Abstract: A blown circuit breaker indicator utilizing an illuminating device such as a light-emitting diode for indicating whether either a thermal electrical or magnetic circuit breaker has been tripped. The indicating device is provided in a circuit parallel to the main switch of the circuit breaker and includes a reactive element such as a capacitor.

Abstract: A fire detecting system utilizing existing electrical wiring in conjunction with circuit protecting devices provided in a main panel box. Various sensors which sense the presence of a fire condition are directly affixed to plug receptacles or wall switches. These sensors activate a short circuit device or a controlled overload which is utilized to trip a circuit breaker and activate various visual or aural alarms. An alternative embodiment employs an encoded RF signal transmitted over the existing wiring, tripping the circuit breaker by an electromechanical device, thereby activating the aural and visual alarms.

Abstract: Electrically insulating gaseous media of unexpectedly high dielectric strength comprised of mixtures of two or more dielectric gases are disclosed wherein the dielectric strength of at least one gas in each mixture increases at less than a linear rate with increasing pressure and the mixture gases are present in such proportions that the sum of their electrical discharge voltages at their respective partial pressures exceeds the electrical discharge voltage of each individual gas at the same temperature and pressure as that of the mixture.

Abstract: An improved apparatus and process for attaching welded omega seal segments to reactor heads, standpipes, mechanisms, and plugs comprises a first shank in combination with a second shank to attach an omega seal at a metal-to-metal interface.

Abstract: A three component alloy capable of reversible sorption of hydrogen having the chemical formula TiFe.sub.1-x Mn.sub.x where x is in the range of about 0.02 to 0.5 and the method of storing hydrogen using said alloy.