A method is disclosed wherein information can be conveyed serially over a signal path in a rate-independent fashion. Three or more signal states are employed for conveying information. The disclosed method consists of attaching meanings to changes of signalling state rather than the length of time that a state is maintained. It is only required that the data source and data sink establish meanings for each change of state and that each transmitted state be maintained long enough for the receiver...

A device including a chamber having two inlets and an outlet. One inlet is connected to an expiratory valve in a lung ventilator or like machine, the other inlet is in communication with a whistle and the outlet is connected to an aspirator. The device gives an intermittent audible signal when the ventilator is operating and saves the operator of the ventilator from having to look at the expiratory valve thereof to verify its correct operation.

A robotic traffic signalling device for reducing the need for deploying workers at various construction sites. The robotic traffic signalling device includes a weighted base member for resting upon a ground surface; and also includes a statute-like member being shaped like that of human being and being generally hollow and being securely mounted upon the weighted base member and having a body member, a head-like member with a hat-like member being securely attached upon the head-like member and ...

An apparatus related to a lot signalling device used to find misplaced lots. A remote control signalling device comprises a receiver section (5) for receiving an RF-command including a unique address of at least one of said plurality of remote control signalling devices (3) from a central control unit (1), an address memory (6) for storing the address of said remote control signalling device, an output section (7) for signalling an alarm upon receiving the RF-command, if said address included in...

An audible signalling system is provided for us by divers or the like to provide a relatively loud audible signal which can be used to indicate diver position, to signal distress, etc. The preferred system utilizes an air horn carried by the diver and adapted for connection to a pressurized air supply carried by the diver for breathing purposes. When the air horn is connected to the air supply, the horn can be operated to produce a loud audio signal of substantial range which can be heard relati...

The present invention provides the nucleotide and amino acid sequence of a previously unidentified erbB receptor target.

A method of enhancing viability of an oocyte by contacting the oocyte with a Wnt-4 polypeptide.

A balloon signalling system includes a hollow, generally cylindrical casing having a container section with an upper open end and a bottom closed end, and a cap placeable on the upper end of the container section to form an enclosure. Also included is a spool on which a string may be wound, with the spool being disposed in the container section near the bottom end thereof to rotate about a transverse axis. A cartridge containing lighter-than-air gas under pressure is disposed in the container se...

The invention relates to a device and a method for supplying information to pilots, especially in poor visibility, about, for instance, the borders of a runway (1). Along the long sides of the runway and at its beginning and end, signal means (2, 5) are arranged, which are translucent to e.g. UV radiation and which comprise a fluorescent material which converts the radiation penetrated by illumination into visible light. In the daytime, the UV radiation originates from sunlight. The converted li...

Signaling means adapted for use on a vehicle, the signaling means being activated in response to a signal from a sensing means, the sensing means being adapted to sense movement of the brake operating part of the driver in a direction likely to result in the brakes associated with that vehicle being applied, such as, for example, movement of the driver's foot from the accelerator pedal towards the brake pedal. The signaling means may comprise a high mounted stop lamp or other light emitting sour...