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










Image Number 4 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
Dryer
Load control device
Chip on chip semiconductor device including an underfill layer having a resin containing an amine-based curing agent
Optical switching device and communications system
Visibility radio cap and network
Weighted determination in configuration management systems
Digital IF demodulator for video applications
  Randomly Featured Patents
Combustion chamber
Luminaire
Radio frequency plasma deposited polymers that enhance cell growth
Identification of undesirable content in responses sent in reply to a user request for content
Tactile sensory testing device
Auto-reverse tape recorder
Method of limiting stacking faults in oxidized silicon wafers
System and method for processing memory with YCbCr 4:2:0 planar video data format
Internal combustion engine with a camshaft bearing device
Dental implant and method for installing the same