Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 212/41
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
Low power voltage controlled oscillator (VCO)
Inspection systems and methods for detecting defects on extreme ultraviolet mask blanks
Header rail for a shower screen or the like
Method for forming contact hole
Stretchable elastic laminate having increased CD elongation zones and method of production
Hepatitis C virus inhibitors
Fixing apparatus
  Randomly Featured Patents
Oxygenating nozzle
Method of calibration with photoactivatable chemiluminescent matrices
Avoidance of spark damage on valve members
Optical triangulation distance sensing system and method using a position sensitive detector and an automatic power controlled light source
Liquid level actuated sleeve valve
Inlet port adaptor on a full-face respirator lens
Roll-up type U-tube manometer
Adaptation using error signature analysis in a communication system
Thermoplastic blends containing polyesters and polyester carbonates based on substituted cycloalkylidene bisphenols
Multi-layered circuit board