Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 212/39A
Name: Traversing hoists >
Description:










Sub-classes under this class:

Class Number Class Name Patents
212/166 Closure remover 45
212/167 With haul-in line 20
212/168 With means to project load engager beyond end of boom 25
212/169 Ground wheel operated 0
212/170 Having clutch or variable speed transmission 3
212/175 Having means facilitating assembly or disassembly 85
212/195 Having counterweight or counterbalancing means 118
212/199 Having boom shiftable vertically along a linear path 15
212/223 Having horizontally swinging boom or bridge 32
212/255 Having vertically swinging boom 33
212/270 Methods 146
212/271 Miscellaneous 54
212/272 Having means to prevent or dampen load oscillations 56
212/276 Having random condition sensor combined with an indicator or alarm or controlling means or disabling means 117
212/282 With mechanical indicator 20
212/284 With motor control 41
212/291 Having operator support or cab 44
212/292 Boom position lock 84
212/293 Having snubber or boom backswing stop 15
212/294 Adjustable to transport or nonuse position (e.g., collapsible) 87
212/307 Ship mounted or floating (e.g., a crane fixed to a platform adapted to float) 58
212/312 Traveling bridge 83
212/347 Boom or mast 98
212/71 Overhead 30
212/901 Dolley-type cranes 66


Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
  Recently Added Patents
Portable computer display structures
Method and apparatus for verifiable generation of public keys
Image processing apparatus
Method for adapting a contact point of a clutch in a drivetrain of a motor vehicle
Storage basket with lid
Method and apparatus for providing auto-completion of information
Method and apparatus for reducing power consumption used in communication system having time slots
  Randomly Featured Patents
Flow rate control valving apparatus
Backhoe bucket adapter bushing and pin method and apparatus
Interfaces from external systems to time dependent process parameters in integrated process and product engineering
Method of preparing a titanium and zirconium-based oxide, the oxides thus obtained and the use of same as catalysts
Laterally releasable binding unit
Signal type identification
Symmetric LED array for pulse oximetry
Printer head
Conveying apparatus having a modular conveying belt and at least one toothed drive wheel
Slat conveyor chain