(0)B64B:0/0:
IPC6
SECTION B - PERFORMING OPERATIONS; TRANSPORTING
B64B
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B 64

 AIRCRAFT; AVIATION; COSMONAUTICS

B 64 B

 LIGHTER-THAN-AIR AIRCRAFT (ground installations for aircraft in general B 64 F)

 

 

 
 

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/ 00 Lighter-than-air aircraft

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/ 02 • Non-rigid airships (B 64 B 1/58 takes precedence; balloons B 64 B 1/40)  

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/ 04 • • the profile being maintained by ties or cords connecting opposite surfaces  

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/ 06 • Rigid airships; Semi-rigid airships (B 64 B 1/58 takes precedence)  

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/ 08 • • Framework construction  

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/ 10 • • Tail unit construction (B 64 B 1/12 takes precedence)  

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/ 12 • • Movable control surfaces  

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/ 14 • • Outer covering  

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/ 16 • • • rigid  

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/ 18 • • • Attachment to structure  

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/ 20 • • provided with wings or stabilising surfaces  

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/ 22 • • Arrangement of cabines or gondolas  

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/ 24 • • Arrangement of propulsion plant (B 64 B 1/34 takes precedence)  

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/ 26 • • • housed in ducts  

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/ 28 • • • housed in nacelles  

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/ 30 • • • Arrangement of propellers  

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/ 32 • • • • surrounding hull  

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/ 34 • • • • of lifting propellers  

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/ 36 • • Arrangement of jet reaction apparatus for propulsion or directional control  

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/ 38 • • Controlling position of centre of gravity  

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/ 40 • Balloons (B 64 B 1/58 takes precedence; toy balloons A 63 H 27/10)  

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/ 42 • • Construction or attachment of stabilising surfaces  

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/ 44 • • adapted to maintain predetermined altitude  

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/ 46 • • associated with apparatus to cause bursting  

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/ 48 • • • to enable load to be dropped by parachute  

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/ 50 • • Captive balloons  

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/ 52 • • • attaching trailing entanglements  

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/ 54 • • • connecting two or more balloons in superimposed relationship  

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/ 56 • • • stabilised by rotary motion  

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/ 58 • Arrangements or construction of gas-bags; Filling arrangements (connection of valves to inflatable elastic bodies B 60 C 29/00)  

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/ 60 • • Gas-bags surrounded by separate containers of inert gas  

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/ 62 • • Controlling gas pressure, heating, cooling, or discharging gas  

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/ 64 • • Gas-valve operating mechanisms  

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/ 66 • Mooring attachments (mooring masts B 64 F 1/14)  

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/ 68 • Water flotation gear  

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/ 70 • Ballasting arrangements