| Patents for B66C 23 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes (16,687) |
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| 07/11/1978 | US4099634 Combined motor puller and stand |
| 07/11/1978 | US4099628 Towing vehicle |
| 07/04/1978 | US4098410 Safe load indicator for jib cranes |
| 07/04/1978 | US4098172 Hydraulic cylinder rod end fixity connector for telescopic crane booms |
| 06/27/1978 | US4096954 Gondola car loader |
| 06/27/1978 | US4096952 Adjustable jib crane |
| 06/13/1978 | US4094230 Self-aligning and end fixity connector for connecting a hydraulic cylinder piston rod to its respective section in a multi-section telescopic boom assembly |
| 05/30/1978 | US4091943 Method and apparatus for loading a vehicle with bales of crop material or similar units |
| 05/30/1978 | US4091936 Apparatus for extending a boom assembly |
| 05/30/1978 | US4091935 Crane with a pivotal assembly for detachably connecting and supporting a boom thereon |
| 05/30/1978 | US4091934 Swivel mounted pump with integral valve means |
| 05/23/1978 | US4090625 Portable hydraulic hoist for vehicular engines |
| 04/18/1978 | US4084777 Stabilizing apparatus incorporating telescopic structures |
| 04/18/1978 | US4084706 Hoisting dolly |
| 04/11/1978 | US4083459 Mounting apparatus for a counterweight assembly |
| 04/04/1978 | US4082191 Crane with left cylinder and journal lock and release device |
| 04/04/1978 | US4081932 Platform crane |
| 03/28/1978 | US4081081 Demountable gantry, boom hoist and counterweight |
| 03/14/1978 | US4078668 Apparatus for monitoring and recording the load of a crane with a pivotal boom |
| 03/14/1978 | US4078666 Supplementary jib for a floating crane having a derricking main jib |
| 03/14/1978 | US4078665 Floating crane comprising a main jib which can be deposited on deck |
| 02/28/1978 | US4076128 Rotary crane |
| 02/21/1978 | US4074818 Loading/unloading crane with buoyant counterweight system |
| 02/21/1978 | US4074817 Barge cable crane |
| 01/31/1978 | US4071147 Mounting for an outrigger cylinder on a crane |
| 01/31/1978 | US4070926 Swing control for crane |
| 01/31/1978 | US4070800 Control of torsional deformation of elongate members |
| 01/24/1978 | US4069922 Portable crane with hoist mounting and outrigger support apparatus |
| 01/24/1978 | US4069884 Self-propelled drive mechanism |
| 01/17/1978 | US4068827 Portable hoist |
| 01/17/1978 | US4068762 Pickup truck derrick |
| 01/10/1978 | US4067595 Stabilizer beam for stabilizing a machine for use on rough ground |
| 01/10/1978 | US4067471 Three point tractor hitch boom attachment |
| 01/10/1978 | US4067446 Cable stay crane |
| 12/27/1977 | US4064997 Crane swing safety control |
| 12/27/1977 | US4064615 Method and device for dismounting or mounting jib sections on a tower crane |
| 12/20/1977 | US4063649 Calibration of crane load indicating arrangement |
| 12/13/1977 | US4062156 Extensible rod |
| 12/06/1977 | US4061230 Crane crosshead assembly mounted on a pedestal |
| 11/29/1977 | US4060221 Double-acting hydraulic cylinder having two pistons arranged for coaxial movement relative thereto |
| 11/15/1977 | US4058178 Hydraulic cylinder unit |
| 11/15/1977 | US4057942 Telescopic boom with hydraulic actuating mechanism |
| 11/08/1977 | US4057792 Overload safety device for telescopic cranes |
| 10/18/1977 | US4054055 Device for controlling the load of a lifting appliance |
| 10/11/1977 | US4053139 Boom point sheave assembly |
| 10/11/1977 | US4053061 Mobile crane |
| 10/11/1977 | US4053060 Crane |
| 10/11/1977 | US4053058 Suspended extensible boom |
| 10/04/1977 | US4052602 Load and radius indicating system |
| 09/27/1977 | US4050587 Hoist and dolly apparatus |
| 09/27/1977 | US4050586 Apparatus for raising & lowering a mast and boom on a mobile crane |
| 09/20/1977 | US4049238 Porta-crane |
| 09/13/1977 | US4047618 Crane construction and method of operation |
| 09/13/1977 | US4047617 Luffing crane with overload protection mechanism |
| 09/06/1977 | US4045936 Telescopic boom with sections of beam and truss construction |
| 09/06/1977 | US4045923 Telescopic swingaway jib |
| 08/16/1977 | US4042116 Track laying tractor with movable boom which can be tilted laterally |
| 08/16/1977 | US4042115 Rotary counterweight crane with a removal track section |
| 08/16/1977 | US4041839 Telescopic ram |
| 08/02/1977 | US4039206 Attachment for ground-engaging pads of stabilizers |
| 08/02/1977 | US4039094 Aerial lift platform with extendable wheels |
| 08/02/1977 | US4039093 Boom arm support lock |
| 08/02/1977 | US4039085 Crane with a pivoted boom and a float valve therefor |
| 08/02/1977 | US4039084 Safety-guard for a crane |
| 08/02/1977 | US4038794 Boom assembly |
| 07/26/1977 | US4037894 Frame construction for power shovels and the like |
| 07/26/1977 | US4037878 Vehicle with dual braking systems |
| 07/26/1977 | US4037742 Programme controlled hydraulic loading crane |
| 07/19/1977 | US4036378 Attachment to pole skidder vehicle for loading, hauling, and stacking cut logs |
| 07/19/1977 | US4036372 Extension and retraction means for the telescopic boom assembly of a crane |
| 06/28/1977 | US4032016 Mobile crane with means for equalizing the axle load |
| 06/28/1977 | US4031976 Construction vehicle having retractable wheels for towing |
| 06/21/1977 | US4030441 Device for connecting tugboat with ship to be tugged |
| 06/21/1977 | US4030353 Effort limiting and interrupting actuator |
| 06/14/1977 | US4029308 Device particularly suited for use in handling hoods of motorized vehicles |
| 06/14/1977 | US4029213 Crane load indicating arrangement |
| 06/14/1977 | US4028792 Method of erecting a tower crane from two groups of modular tower sections differing in cross section |
| 06/07/1977 | US4027801 Outrigger system for vehicles |
| 06/07/1977 | US4027448 Crane boom with angular side frame reinforcements |
| 05/24/1977 | US4024957 Crane with foldable boom |
| 05/03/1977 | US4021017 Third member handling jack |
| 05/03/1977 | US4020952 Articulated stand apparatus for laying and recovering pipeline |
| 04/12/1977 | US4016974 Package for transporting units of a modular crane |
| 04/12/1977 | US4016688 Extensible crane boom structure |
| 03/29/1977 | US4014519 Hydraulic jack with mechanical locking device |
| 03/22/1977 | US4013270 Combined winch and boom assembly |
| 03/22/1977 | US4013174 Swing drive with automatic shut-down control |
| 03/15/1977 | US4011955 Sea crane tiedown |
| 03/15/1977 | US4011699 Telescopic boom quick retract hydraulic circuit |
| 03/08/1977 | US4010852 Sheaving arrangement |
| 02/01/1977 | US4006347 System for a crane boom |
| 02/01/1977 | US4005852 Traction sheave warning for helicopter rescue hoist systems |
| 02/01/1977 | US4005780 Boom stop and back hitch compensating system |
| 01/25/1977 | US4004778 Portable roof winch |
| 01/25/1977 | US4004695 Channel and plate telescopic crane boom |
| 01/18/1977 | US4003482 Safety device for a crane |
| 01/18/1977 | US4003479 Hoist and transporting apparatus |
| 01/18/1977 | US4003475 Crane boom lattice and hoist line protection assembly |
| 01/18/1977 | US4003474 Crane boom stop arrangement |
| 01/18/1977 | US4003168 Crane boom of trapezoidal boom sections having reinforcing rings |