Abstract: A horn assembly is disclosed. The horn assembly includes a shutter than can cooperate with a horn valve. The shutter disposed on an end portion of the horn assembly can help seal the horn assembly and prevent moisture, rain or debris from entering the interior of the horn assembly. In operation, the shutter can be moved to allow the horn to provide a signal. After the horn has completed operation, the shutter can be moved back to its original sealing position.

Abstract: A stored-value card includes a housing and at least one internal wall substantially enclosed within the housing. The housing includes an account identifier signifying a financial account or record linked to the stored-value card. The at least one internal wall is configured to define an airflow chamber within the housing. The housing defines an opening leading into the airflow chamber. The stored-value card is configured to produce a whistle sound when air enters the airflow chamber from the opening and moves within the airflow chamber.

Abstract: A system and method for a horn controller is provided that automatically operates a vessel's horn as a foghorn. The horn controller automatically causes the vessel's horn to sound according to the proper foghorn sounding schedule. The horn controller is designed to be installed in a new vessel, and/or to be retrofitted to an existing vessel.

Abstract: Garage and vehicle protector disclosed mounts on a garage and has an indicator positioned inward from the left side of the door opening to guide a driver to correctly align a vehicle laterally when entering or exiting the garage. The protector has an adjustable support that is adjusted such that the automobile mirror just touches the indicator when the vehicle is correctly aligned. One or more fuzzy balls or a feather preferably coated with a flourescent material is used as the indicator. The indicator and support are resilient to flex when contacted and return to the original position when the contact force is removed.

Abstract: A high-volume source for very low frequency applications in which conventional speakers are inadequate is disclosed. A presently preferred embodiment comprises a reservoir 32 with a pressure relief 33; a controller 34; a supply blower 36; an exhaust blower 38; a positive plenum 40; a negative plenum 42; an orifice plate with valving 44; a horn 46; and pressure transducers 48, 50, 52, 54, feeding detected pressure levels to the controller 34. An electrical command signal s(t) is also input to the controller. The command signal is a voltage analogous to the acoustic pressure or volume velocity to be output by the source.

Abstract: A warning device for breathing apparatus which has a respiratory gas conduit through which respiratory gases are passed and which includes three interconnected chambers. Two of the chambers include diaphragm valves operable, responsive to pressure conditions therein, to actuate a piston in the third chamber which moves a signaling element into the gas conduit to signal a low pressure condition.