"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7410269 | Decorative light system A decorative light system includes a base and a portable light device capable of communicating with each other to generate a light show. The system includes a base defining a receptacle and including a microcontroller, a transceiver operably coupled to the microcont... | 08/12/2008 |
| 7311575 | Buoy and buoy mounting bracket A stackable buoy can be mounted on a U-shaped mounting bracket that can in turn be attached to a panel, such as the inner surface of a boat hull. The buoy includes protrusions molded as part of parallel channels, which receive the two legs of the bracket. Multiple b... | 12/25/2007 |
| 7272908 | Fishing float A fishing float includes a housing having first and second portions. The housing first portion may contain a first light source and a first depth sensor. The housing second portion may contain a second light source and a second depth sensor. The housing may include ... | 09/25/2007 |
| 7261432 | Illuminated ball and mating element for forming such ball An illuminated ball formed by two substantially identical mating elements. Each mating element has an exterior surface bounded by an edge, an annular surface joined to said exterior surface at the edge, two opposed radial recesses formed in the annular surface, a we... | 08/28/2007 |
| 7261606 | Flotation apparatus A method and apparatus is provided to support a plurality of objects such as keys with an inflatable apparatus when the inflatable apparatus is exposed to a body of water. In one embodiment, an inflatable apparatus provides an attachment member such as a key ring to... | 08/28/2007 |
| 7238075 | Personal water activity apparatus with variable light display for protection against sharks and other water-borne predators Apparatus for protecting users of surfboards, kayaks and other personal water activity apparatus against sharks and other water-borne predators is provided. A plurality of lights is provided on the bottom and side surfaces of the personal water activity apparatus. T... | 07/03/2007 |
| 7140936 | Island swim raft A swim raft constructed of a three-dimensional shaped body exhibiting a substantially planar bottom, a curved side, and a sloping top. The body has an outer shell constructed of a polyester laminate shell material and which encapsulates an inner foam core. At least ... | 11/28/2006 |
| 6850152 | Non-flammable land and sea marker A flameless and smokeless marker attracts attention to a site. A battery and electronics section has a battery module and electronics module. The battery module connects power to the electronics module for creating responsive power-activation signals. An inflatable ... | 02/01/2005 |
| 6758160 | Hydrant locator This invention relates to a hydrant locator that facilitates the location of a hydrant by firefighters, particularly in an emergency. The low profile device wraps around the hydrant cylinder for mounting purposes and a switch in an emergency vehicle sets off strobe ... | 07/06/2004 |
| 6402459 | Device comprising an elongated tubular body arranged to be located in water The invention relates to a device (1), including an elongated tubular body (3) arranged to be located in water in an essentially vertical position. The tubular body (3) includes an open end (6) at the bottom and a narrowing portion (7) at the top, which e... | 06/11/2002 |
| 6162106 | Inflatable flag buoy workable in both the daytime and the night An inflatable flag buoy for divers including a buoyant seat and a flag body in the form of two air chambers separated by a transparent interface. The buoyant seat is further divided into an upper air chamber and a lower water chamber that are not communic... | 12/19/2000 |
| 5769676 | Aquatic search device The device comprises a body which can float in water and, at the same time, has wheels for movement on land, having independent elements for driving the wheels and for movement on the water, and having internal-combustion and electric drive apparatus as w... | 06/23/1998 |
| 5741167 | Remotely controllable signal generating platform A remotely controllable signal device, such as a buoy which may be used as target for gunfire training includes platform, a radio receiver, a decoding device, and one or more visual location signaling devices. The platform is floatable in the case of a bu... | 04/21/1998 |
| 5651209 | Fish attractor A fish attractor in the form of a bottom dwelling or floating but anchored light including, optionally, a surface which provides for scintillating light effect as the device floats or moves in response to the waves. Optionally, the invention includes a fi... | 07/29/1997 |
| 5520486 | Diver safety apparatus and method The present invention comprises a method and apparatus for identifying a down diver in distress comprising activating automatic inflation means to inflate a tube, activating automatic signal means, to provide sensory indication of a diver in distress, rel... | 05/28/1996 |
| 5358437 | Reversible, lighted marker buoy A water marker buoy comprising a clear end and a brightly colored end, both ends possessing mounting studs which allow attachment to a submerged reel, the clear end being illuminated for use as a night marker and the brightly colored end being suitable fo... | 10/25/1994 |
| 5251113 | Lantern float apparatus A lantern float is arranged to attract fish, insects, and the like to enhance success of a fishing procedure. The organization includes a perimeter buoyant ring mounting a light transmissive support therewithin, with the support having a support ring to i... | 10/05/1993 |
| 5163858 | Rescue buoy apparatus A buoy member includes a central cavity with a weighted bottom portion to maintain alignment of the buoy apparatus, and the buoy apparatus includes a transmitter operative upon the buoy being projected from an associated boat. The buoy apparatus is furthe... | 11/17/1992 |
| 4836815 | Emergency illuminated lifeline Disclosed herein is an improved emergency illuminated lifeline including a buoyant housing in which may be stored a length of line which may be payed out during an emergency. In the preferred embodiment, the housing also includes a battery powered light w... | 06/06/1989 |
| 4834685 | Reversible arming and firing mechanism for marine markers An improved buoyant pyrotechnic marine marker of the type comprising a water impermeable jacket enclosing a pyrotechnic candle, an ignition device for the candle consisting of a water actuable battery, a candle igniting squib electrically acutated by the ... | 05/30/1989 |
| 4736205 | Buoy lantern assembly employing hinged gimbal Marine buoy lantern employs a heavily damped two-axis gimbal including an outer gimbal frame supported to the lantern housing by a pair of hinges and an inner gimbal member mounted to the outer gimbal frame by another pair of hinges. The hinges are made o... | 04/05/1988 |
| 4586456 | Inflatable balloon distress marker having small article containing compartment therein A balloon distress marker wherein the balloon has, in a wall thereof, a small compartment interiorly of the balloon and accessible through an aperture in the wall of the balloon for retaining an article therein. The compartment is substantially smaller th... | 05/06/1986 |
| 4562788 | Sea anchor or changeable drag A device of the nature of a sea-anchor has a body tapered to the nose where it is attachable to a cable from a boat and formed with ports normally closed by spring-loaded closures but opened, by predetermined cable tension, to increase resistance to passa... | 01/07/1986 |
| 4553194 | Portable floating fishing light A light source, which is releasably attachable to a 12-volt battery, is mounted in floating housing. A plurality of pivot arms are attached to the housing, each of which arms includes a buoyant block or float attached to the free end thereof. When the arm... | 11/12/1985 |
| 4464129 | Safety marker for divers A safety marker for divers comprising detection means (5) designed to emit electrical signals upon the appearance of an element dangerous to the divers within a specific zone around said marker, means (8) for shaping these signals to control signalling me... | 08/07/1984 |
| 4015111 | Inflatable, chemi-luminescent assembly A globular chemical-lighting assembly suitable as an illuminated playing ball or as an omnidirectional light-emitting source. The assembly is constituted by a compact chemi-luminescent device which is insertable within an inflatable globe formed of transl... | 03/29/1977 |