Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Floatation device










Image Number 10 for United States Patent #7841917.

A floatation device is disclosed that comprises a container 10 containing a liquefied gas, a gas chamber (60, FIG. 2) and a remotely operable device 29. The remotely operable device is switchable between a closed state in which fluid communication between the container and the gas chamber is prevented, and an open state in which fluid communication between the container and the gas chamber is enabled and vaporization of the liquefied gas charges the gas chamber with gas. The liquefied gas may be liquid nitrogen and the container may be heat insulated with an insulating vacuum cavity. A buoyancy unit (40, FIG. 2) which comprises a rigid enclosure (42, FIG. 2) defining an interior volume and a flexible diaphragm (55, FIG. 2) that partitions the interior volume into first and second chambers is also disclosed.








 
 
  Recently Added Patents
Co-map communication operator
Tread portion of an automobile tire
MEMS autofocus actuator
Timing and cell specific system information handling for handover in evolved UTRA
Method for operation of multi-layer-multi-turn high efficiency inductors
Deposited conductive layers for leads of implantable electric stimulation systems and methods of making and using
Knife grip
  Randomly Featured Patents
Reagent container and slide reaction retaining tray, and method of operation
Multiple mode image processing apparatus and method
Negative trimming of fiber optic winding
Electrostatic latent image developing toner and method of image forming
Process for the destruction of waste by thermal processing
Image display device and method of manufacturing the same
Exhaust gas purification method and exhaust gas purification apparatus
Hold-time latch mechanism compatible with single-rail to dual-rail conversion
Lithographic projection apparatus and a device manufacturing method using such lithographic projection apparatus
Size-exclusion chromatography system for macromolecular interaction analysis