Colonel Carl J. Crane

 Colonel Carl Crane authored over 200 patents over his life time, both in the United States and countries around the world.

uNITED STATES PATENTS COLLECTION

United States       
 2,315,501 - Automatic Glide and Climb Control      
 1937511 - Shock Absorbers for Vehicles      
 1955488 - Aerial Flight Instruments      
2007964 - Airplane Stabilizers      
 2053182 - Bank and Turn Indicators      
 2152635 - Aircraft Speed Indicators      
 2216737 - Rate Indicators      
 2220080 - Synchronizing Mechanisms      
2253508 - Navigating Systems for guiding Aircraft      
 2262245 - Cathode Ray Flight Indicator      
 2265149 - Photoelectric Switch Device      
 2266741 - Panoramic Sextants      
 2280798 - Panoramic Sextants      
 2273022 - Automatic Throttle Controls      
 2276284 - Drift Meter      
 2280117 - Drift Correction Modulated Beams      
 2280797 - Aerial Flight Instruments      
 2283190 - Flight Indicator      
 2291610 - Engine and Flight Factor Indicators      
 2293044 - Rate Indicators      
 2311642 - Electric Throttle Engines      
 2313733 - Leveling Devices      
 2313734 - Temperature Compensated Bubbles for Panoramic Sextants      
 2321582 - Marker Beacon and Landing Gear Controlled Throttle Engines      
 2356828 - Navigation Control Means      
 2323311 - Automatic Altitude Controls      
 2326764 - Navigation Trainer      
 2343281 - Stall, Skid and Slip Warning Devices for Aircraft      
 2358793 - Navigation Instruction Devices      
 2363401 - Navigation Control Means      
 2388252 - Slide Members for Measuring and Marking Devices      
 2393310 - Navigation Instruments      
 2396687 - Airplane Turn Indicators      
 2412206 - Sensitive Switch Control Apparatus      
 2420656 - Efficiency Measuring Devices      
 2450421 - Apparatus for Simulating Wind Effects in Aviation Ground Trainers      
2452038 - Photoelectric Radio Compass Trainer Control      
 2452039 - Apparatus for Simulating Wind Effects in Aviation Ground Trainers      
 2454503 - Automatic Aural-Visual Signal Transmitters for Aviation Ground Trainers      
 2457130 - Blind Flying and Blind Landing Systems for Trainers      
 2459150 - Interception Trainers      
 2488854 - Containers for Dispensing Materials      
 2492969 - Night and All Weather Ground Trainers      
 2685226 - Aircraft Flight Control Optical Indicating Device      
 2791254 - Resilient Disc Type Seed Sheller      
 3292176 - Height Indicating System for Aircraft      
 3307191 - Aircraft Blind Landing Device      
 3797308 - Aircraft Landing Altimeter      
 3840877 - Voice Directed Aircraft Navigation System      
 3907223 - Voice Directed Aircraft Navigation System and Direction Finder      
 3999007 - Aircraft Visual Approach Landing Device      
 2444477 - Automatic Mini Radio Range for Student Training      
       

 

INTERNATIONAL Patents Collection

 

 

  Canada Poland Japan

 		  381,620 - Electrical Signaling Apparatus  27427 - Display Unit for Blind Flight
(in Polish)		  144,569 - Improvements in and relating to
navigational Control means
   398,044 - Navigational Control Means    
   399,423 - Navigational Control Means    
   416,978 - Apparatus for Simulating Wind Effects
in Aviation Ground Trainers		    
   379,823 Aircraft Speed Indicators  Great Britain  France
   426,168 - Pencils and Chips  715,269 - Indicating Device for Facilitating
Aircraft Control		  822,245 - Instrument Indicator for 
Aircraft
   535712 - Craft Control Device and Method  392163 - Improvements in Aerial Flight Integrators  836,374 - Automatic Direction Device
     471537 - Aerial Flight Instruments  
     515087 - Improvements in or relating to steering apparatus for auto indicating and controlling ....  
     515205 - Improvements for Automatically Keeping a Vehicle or Vessel on a given Course