Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Flame spray gun










Image Number 3 for United States Patent #4325512.

A flame spray gun (10) for feeding and melting rods (R) of heat fusible material and spraying molten droplets thereof onto a substrate comprising an improved main supply valve connected to air, fuel gas and oxidant conduits (14-22) (44-48) including air, fuel gas and oxidant inlet and outlet chambers (28-38), continuous seals (40) and vents (42) between the chambers, a valve shaft (50) with axially spaced slots movable within a bore and seals to connect the inlet and outlet chambers, a valve locking device (54-56) for maintaining shaft (50) either in a LIGHTING or ON position and an unlocking device (62-66) to release biased valve shaft to an OFF position. An improved combustion head (70) and flame spray nozzle (82) has seals situated on opposite sides of oxidant and fuel gas chambers and between the combustion head and nozzle. Further an improved turbine (130) comprises angularly spaced air jet passages in a shroud for simultaneously directing air under pressure from a surrounding sealed chamber against the turbine rotor (140) and axial exhaust passages between the air jet passages and a speed control for selecting, sensing and regulating the turbine comprises a throttle valve including differential pistons (172-174) responsive to back pressure created by movement of a magnet (160) within a magnetic cup (168) rotating with the rotor (140) which produces eddy current force torque which rotate the magnet (160) and an air jet obstructer (162) relative to an air jet orifice (164) and thereby vary the back pressure which acts to shift the throttle valve which adjusts the air supply and maintains the speed of the turbine accordingly to a constant preselected desired rate.








 
 
  Recently Added Patents
Method and apparatus for accessing and downloading information from the internet
High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use
Substrate processing apparatus and display method of substrate processing apparatus
Fast base station switching method and system, and hierarchical zone-based fast handoff approach
Systems and methods for switching supply load current estimation
Apparatus and method for an iterative cryptographic block
Treatment of influenza
  Randomly Featured Patents
Combined waste bin and seat
Rotary impeller
Submersible pump
Ink-jet print method and apparatus
Universal image coder and controller for multicolor electrolytic printing
Transverse flux linear motor with permanent magnet excitation
Uniaxial tension focus mask for a color CRT with electrical connection means
Unitary construction animal feeder and method for manufacture
Handheld electronic device and method for disambiguation of text input providing suppression of low probability artificial variants
Passive electronic parts, IC parts, and wafer