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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 8069810 | Attachment device equipped with a whistle An attachment device with a whistle comprises a securing device of a flexible joining strap and a release button, the assembly being housed in a hollow body made from plastic material. The hollow body is injection molded in a single part being subdivided into a firs... | 12/06/2011 |
| 8028642 | Whistle with finger grip A whistle for producing resonant frequencies comprising a body which includes a mouth piece having an inlet, and at least two sound chambers to which inlet air is blown from the inlet. The whistle further includes air passageways for communicating inlet air from the... | 10/04/2011 |
| 8006634 | Whistle An object of the present invention is to provide a whistle which has a resonance frequency shifted to the low-frequency side and a pleasant tone while retaining a compact size and light weight. In order to attain this object, a whistle comprises a mouthpiece portion... | 08/30/2011 |
| 7992513 | Disassemblable whistle A whistle is provided with an interior that can be cleaned. The whistle has a body with a resonance chamber wall. One face of a resonance chamber formed by the resonance chamber wall is open. A side plate is formed separately from the body, and can be attached to an... | 08/09/2011 |
| 7987809 | Whistle with possession control indicating system A basketball sports whistle having an integral basketball possession indicator at the eye level of the referee enables the referee to accurately determine which team is entitled to possession of the basketball without diverting his eyes from the basketball court. Th... | 08/02/2011 |
| 7980193 | Pressure lock marine horn A marine horn has a horn path with a pressure lock chamber blocking water which has ingressed the horn outlet mouth from reaching the sound source along the horn path. ... | 07/19/2011 |
| 7743724 | Animal warning system for vehicles The invention is an ultrasonic whistle that screws onto the valve stem of a vehicle tire. A variety of alternative embodiments utilize a housing that screws onto the valve stem with variations as to how air travels across the whistle. As the vehicle's tires rotate, ... | 06/29/2010 |
| 7617794 | One piece horn cover A horn assembly for a motor vehicle includes a sound generating member, a housing having a first opening connected to the sound generating member and a second opening to disperse sound from the sound generating member, and a deflector to restrict ingress of liquid i... | 11/17/2009 |
| 7581509 | Hybrid whistle A hybrid whistle has two pealess whistle chambers with air vents to the left and right and a central pea whistle with an air vent facing generally perpendicularly to the left and right air vents that are integrally formed together, preferably in a two piece, top and... | 09/01/2009 |
| 7428878 | Whistle A new whistle which emits louder sound level with easiness of blowing air through the whistle. It direct the sound to intended subject by having sound opening area in front of the whistle to direct sound waves to go forward motion and it has capacity to change the i... | 09/30/2008 |
| 7387079 | Automatic horn shutter 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 th... | 06/17/2008 |
| 7370601 | Whistle structures Devices that emit sound audible to nearby animals can include a deflection structure or other support structure and, connected to it, at least one whistle structure. The deflection structure can, for example, be a rain guard, an insect deflector, or a rock deflector... | 05/13/2008 |
| 7370600 | Air horn with light signal A horn device includes a trumpet fixture which removably attaches to the valve portion of a canister containing a charge of compressed air. An actuator button on the trumpet fixture is operable to open the valve assembly of the canister causing release of the pressu... | 05/13/2008 |
| 7360499 | Helmholtz resonator type marine signal A power efficient, acoustical Helmholtz resonator foghorn including a plurality of electrical emitters, some of which are redundant, arrayed at one end of a blocked tube with a plurality of exhaust ports located therein surrounded by a standoff tubular member. The f... | 04/22/2008 |
| 7191779 | Snorkel with whistler Provided is a snorkel having a whistler. In one embodiment, the whistler is mounted on a breathing tube. A swimmer wearing the snorkel may seize the whistler by the mouth prior to making a clear, shrill sound by activating the whistler. ... | 03/20/2007 |
| 7176367 | Pen instrument with controllable whistle A pen instrument is provided with a controllable whistle. The whistle includes a tubular body; a sleeve connected at a rear end to a first open end of the tubular body and at a front end to a rear end of the pen instrument to connect the whistle to the pen instrumen... | 02/13/2007 |
| 7159248 | Head covering with attached whistle A head covering with an attached whistle. The generally square head covering has a top edge, a bottom edge, a left side edge, a right side edge, a front surface and a rear surface. A relatively narrow channel is present inside the covering near the top edge. The cha... | 01/09/2007 |
| 7145067 | Game calling device A game calling device capable of producing variable pitched sounds includes a truncated fan-shaped body having a mouthpiece end and a discharge end and multiple bores extending through the body from the mouthpiece end to the discharge end. First and second reed inse... | 12/05/2006 |
| 7066106 | Reverberating mechanical siren A small light mechanical siren for mobile emergency equipment which utilize spiral rebound ramps in the rotor to produce a loud penetrating square form spiral sound wave, enabling effective warning without contributing to noise pollution. ... | 06/27/2006 |
| 7066779 | Mounting arrangement for squeakers A method of mounting a squeaker into a hard rubber ball toy. A separate holder or sleeve is provided that retains a squeaker and forms the noise producing element to be inserted into the rubber toy. The sleeve has a recessed area that tightly mates with an opening i... | 06/27/2006 |
| 7043802 | Zipper pull with whistle A zipper pull mechanism attaches two free ends of a zipper cord together, after the free ends are looped through an eyelet in the zipper slider. The zipper pull mechanism will assist the user in operating the zipper. The zipper pull mechanism includes two components... | 05/16/2006 |
| 7046583 | High-power transmission acoustic antenna The present invention relates to high-frequency antennas with high transmission power. The invention consists in making the backing layer of such an antenna with a heat-conductive foam and enables the transmission power to be appreciably doubled. ... | 05/16/2006 |
| 7037167 | Whistle game call apparatus and method A whistle-type game call for reproducing sounds made by certain whistling animals, such as ducks or other waterfowl, without manipulating (e.g., rolling, vibrating, fluttering, etc.) the tongue. The whistle may include a sound chamber with one or more protruding rid... | 05/02/2006 |
| 7038576 | Electropneumatic horn An electropneumatic acoustic horn is disclosed, comprising an electric compressor unit for generating compressed air and a sound wave generator comprising at least an acoustic chamber associated to at least a volute wound acoustic duct adapted to propagate the produ... | 05/02/2006 |
| 7004360 | Easy pour tea kettle A tea kettle includes kettle body and a lid that covers a fill opening in the body. The lid includes a knob within which a whistle is positioned. A spout is attached to the kettle body and has a passageway. A ball seat is positioned within the passageway as is a str... | 02/28/2006 |
| 6975213 | Whistle with light emitting device A whistle has a whistle member having a mouthpiece at a front thereof, a chamber therein, a passage communicated with the chamber, and an outlet at a sidewall of the chamber, and a light emitting device provided on the whistle member, which has a lamp, a battery and... | 12/13/2005 |
| 6952168 | Audio cone module A safety device, comprising at least one sensor for sensing the presence of an object and a warning system that emits at least one precreated verbal warning message after the sensor senses an object. The warning system includes a control system that allows a user to... | 10/04/2005 |
| 6942362 | Lighted whistle Described is an apparatus for a lighted whistle connectable to a predetermined article. A housing forms an outer shape of said whistle and has therein an inner cavity. A mouthpiece adapted for a user to blow air thereinto has an opening in fluid connection with said... | 09/13/2005 |
| 6914179 | Flutes with multiple chambers that share compound bisected toneholes One exemplary embodiment of a flute comprises first and second chambers in which sound is resonated and a tonehole disposed at and shared by the first and second chambers. The tonehole is coverable by a single finger of an operator's hand and is configured to facili... | 07/05/2005 |
| 6837177 | Whistle having air flow converter A whistle (1) has: a mouthpiece which includes an air inlet (4); a first and a second resonance chambers (5a, 5b) to which air is injected through the air inlet via a first and a second air passages (6a, 6 | 01/04/2005 |
| 6837922 | Air filter sensor apparatus kit and method An air filter sensor kit and method of using the same for permitting a person to modify the filtering portion of a heating or cooling system that uses an air filter to enable the determination of when the air filter is dirty and needs changing. The air filter sensor... | 01/04/2005 |
| 6832574 | Bicycle whistle An apparatus for use with a bicycle includes a base portion and a whistle portion. The base portion is attached to a frame, fender, or handlebars of a bicycle. The whistle portion is attached to the base portion and is adapted to produce an audible sound when the bi... | 12/21/2004 |
| 6796265 | Pneumatic signaling device for divers The present invention relates to an all-purpose, pneumatic powered signaling device including a first component capable of transmitting signals above water and a second component capable of transmitting a signal beneath the water. The first component includes a pneu... | 09/28/2004 |
| 6739063 | Combination compass A combination compass. The compass includes a housing, a compass device mounted inside the housing, a top cover pivoted to one end of the housing and capable of covering over the compass device. The top cover has a mouthpiece, a resonance chamber, an air passage con... | 05/25/2004 |
| 6698377 | Whistle A dog whistle comprises a body formed in two parts (2,3) and provided with a mouthpiece (4) which communicates through an air passage (10) with a sound chamber (5) having a vent (6) provided with an air splitter (9), the air passage containing a ramp (8) ... | 03/02/2004 |
| 6619225 | Whistle for multi-implement folding knife A whistle attachment is shown for a multi-implement tool which may be of the folding knife type. The whistle is attached and located in a manner to provide quick and easy access to the whistle in an emergency situation such as an attack or potential attac... | 09/16/2003 |
| 6578511 | Pneumatic signaling device for divers The present invention relates to an all-purpose, pneumatic powered signaling device including a first component capable of transmitting signals above water and a second component capable of transmitting a signal beneath the water. The first component incl... | 06/17/2003 |
| 6516741 | Leak proof apparatus for mounting components to panels A leak-proof assembly for mounting an air horn on a truck cab roof. The mounting includes a threaded portion extending through the roof, a flange extending circumferentially around the fitting, and a horn stud portion. Concentric seals, adjacent the threa... | 02/11/2003 |
| 6494161 | Tea kettle flute The present invention is a novelty musical kettle that plays a song when liquid inside the kettle is heated. The kettle body contains a circular flute instrument with a release flap at a first end and a closed second end. When the water is heated, the fla... | 12/17/2002 |
| 6494160 | Ringing kettle An apparatus for boiling a liquid includes an audible alarm for notifying an individual when the liquid is boiling. The audible alarm makes use of steam generated by the boiling liquid to drive a turbine which is connected to a means for ringing a bell to... | 12/17/2002 |
