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| Number | Title | Issue Date |
| 7559261 | Device and method for measuring molecule using gel substrate material A device for measuring a molecule, wherein a gel substrate material (200) comprises a gel (220) containing a solvent in the network structure thereof and a molecular chain (210), and a cantilever (100) is bound with the molecular chain ( | 07/14/2009 |
| 7422256 | Lifting sling with excessive elongation warning indicator A lifting sling having warning markings that indicate the extent of elongation of the sling under load, whereby an operator can visually determine if the maximum safe load weight of the sling has been exceeded. The markings are disposed on the surface of the sling c... | 09/09/2008 |
| RE40099 | Load cell apparatus and method A load cell system (10) having a frame (12) to which upper compliance assembly (14) is connected. A load cell (16) is connected to upper compliance assembly (14) and lower compliance assembly (18) is connected to load cell (... | 02/26/2008 |
| 7070061 | System for controlling movements of a load lifting device The invention relates to a system for controlling movements of a load lifting device on a horizontal plane whereby the load lifting device (6) comprises a vertically oriented carrier element (14). The vertical orientation of said carrier element is at ... | 07/04/2006 |
| 7043337 | Methods and apparatus for eliminating instability in intelligent assist devices Methods and apparatus for eliminating instability in intelligent assist devices are disclosed. The intelligent assist device includes an overhead motorized moveable trolley, a support that extends downwardly from the trolley to a payload, and a sensor operatively co... | 05/09/2006 |
| 6886666 | Elevator load bearing assembly having a detectable element that is indicative of local strain A load bearing member, such as a polymer cord reinforced belt, includes at least one element of a different material having a characteristic that distinguishes it from the polymer fibers that make up the strands of the cord. The element of second material has a conf... | 05/03/2005 |
| 6860161 | Weight detector for elevator The displacement of a shackle, which is coupled with a main rope hanging an elevator car, caused by loading of the car, is converted, through a wire, into the rotary motion of a pulley which has a substantially vertical rotating surface, and an acceleration sensor f... | 03/01/2005 |
| 6774320 | Standard attachment fittings for wire rope and chain enhanced to also perform load weighing functions Standard attachment fittings for wire rope and chain (WR&C) that are enhanced to also perform load weighing functions in lifting/support or pulling assembly applications. The existing unmodified shape of each typical WR&C fitting provides focused linear strain under... | 08/10/2004 |
| 6684981 | Elevator load bearing assembly having a ferromagnetic element that provides an indication of local strain An elevator load bearing assembly, such as a polymer cord, reinforced belt, includes at least one element of a ferromagnetic material associated with each cord that comprises one or more non-ferromagnetic materials. The ferromagnetic element is associated... | 02/03/2004 |
| 6668668 | Non-contacting sensors A system and method for measuring the deflection angle of a cable from an initial position is disclosed. The cable is energized with an alternating electric current that creates a magnetic field associated with the cable. Pickup coils are positioned adjac... | 12/30/2003 |
| 6578441 | Crane testing apparatus and associated load testing method Two groups of test weights are stacked on a horizontal base frame transported to an aligned position underlying a crane to be tested for loading capacity. Such base frame is loaded with the test weights stacked thereon after assembly into a test apparatus... | 06/17/2003 |
| 6543300 | Method and arrangement for measuring load of hoisting apparatus A method and an apparatus for measuring a load of a hoisting apparatus, where electricity is used as the driving force and a squirrel cage motor as the hoisting motor for moving a load attached to a hoisting member of the hoisting apparatus substantially ... | 04/08/2003 |
| 6370970 | Cargo handling machine including force control The present invention aims at improving operability of a cargo handling machine by applying thereto a force control method. According to the force control method, a force sensor detects an anti-gravitational lift force that makes it possible to raise the ... | 04/16/2002 |
| 6354158 | System for measuring torque applied to the drum shaft of a hoist The invention provides a method and apparatus for measuring the torque applied to the drum shaft of a hoist. By measuring the torque on the drum shaft, the force or tension on the fast line can be accurately determined. If the force or tension on the dead... | 03/12/2002 |
| 6303882 | Load cell apparatus and method A load cell system (10) having a frame (12) to which upper compliance assembly (14) is connected. A load cell (16) is connected to upper compliance assembly (14) and lower compliance assembly (18) is connected to load cell (16). In preferred embodiments, ... | 10/16/2001 |
| 6098470 | Method and apparatus for testing hook release Apparatus and method are provided for testing the release hook mechanism used to release an emergency survival craft from its davit. The test is performed with a selected load applied to the hook mechanism, and is designed to satisfy regulations for no-lo... | 08/08/2000 |
| 6073496 | Load hoisting apparatus A hoisting apparatus, includes a handle positioned above a load-engaging member for grabbing by an operator to manually move and guide a load, a lifting mechanism positioned above the handle and operatively connected to the handle via a flexible transmiss... | 06/13/2000 |
| 6044991 | Load measuring apparatus for aerial booms and jibs A load measuring device for an aerial machine having a boom or jib which handles loads. A load bearing sheave has a winch line passed over it to raise and lower the load. A guide sheave maintains the winch line at a constant entry angle to the load bearin... | 04/04/2000 |
| 5831222 | Measuring device having a load measuring element A measuring device including a substantially horizontal shaft having a longitudinal axis and a groove defined transverse thereto. The shaft is mounted with clearance in a substantially non-circular opening defined in the lateral supports of a supporting d... | 11/03/1998 |
| 5783755 | Lifting device employing an equalizer system to reduce weight measurement error A lifting device that has a carriage supported by a chain which passes over a sprocket-wheel disposed to rotate about an axis and features an equalizer system that reduces variations in the measurement, by a load cell, of a load supported by the carriage.... | 07/21/1998 |
| 5727833 | Eye-and-eye sling An eye-and-eye sling in which the protective cover for an endless loop load bearing sling core is not provided with extraneous layers along the body of the sling that extends between the sling eyes. In the inventive sling, first and second loop segments o... | 03/17/1998 |
| 5591943 | Weight-sensing member for an electrical suspension weigher A weight-sensing member is made from material with good toughness and elastic deformability characteristics and has a top end, a bottom end and a broadened portion located between and integral with the first and second ends. The broadened portion has a pa... | 01/07/1997 |
| 5589646 | Tension load cell apparatus A tension load cell apparatus includes a structural member of metallic construction having a pair of large diameter end portions and a smaller diameter center portion. String gauges are carried on the center portion for generating a tension load value res... | 12/31/1996 |
| 5551545 | Automatic deployment and retrieval tethering system A system for a mobile vehicle such as a remotely controlled robot, for deploying and retrieving cable into the environment external to the vehicle. The system includes a frame, a cable reel mounting device for a cable storage reel having cable wound there... | 09/03/1996 |
| 5429007 | Tension load cell apparatus A tension load cell apparatus includes a structural member of metallic construction having a pair of large diameter end portions and a smaller diameter center portion. Strain gauges are carried on the center portion for generating a tension load value res... | 07/04/1995 |
| 5170662 | Balance for measuring the thrust of a turbojet engine A balance for measuring the thrust of a turbojet engine comprises a movable frame suspended by flexible suspension strips from an interface structure fixed to the ceiling of a building housing the balance, an adaptor by which the turbojet engine is mounte... | 12/15/1992 |
| 5152183 | Measurement system for loaded lifting rope A measurement device is furnished at a lifting means, in particular at a lifting rope, subjected to a load and used in hoisting machines. A support element (5) is disposed at the hoisting device and is attached with at least two force transducers (1) via ... | 10/06/1992 |
| 4986391 | Elevator load weighing In an elevator system, sensors 14, 15 are placed at points of inflection 11 on suspension rods 3, 5 in an elevator pendulum car support assembly 1 for the purpose of measuring weight. Sensors placed at such points of inflection measure the tension in the ... | 01/22/1991 |
| 4936136 | Method for checking the friction between the traction sheeve and the suspension ropes of an elevator In a method for checking and monitoring the friction between the traction sheave and the suspension ropes of an elevator, the slippage between the traction sheave and the suspension ropes of the elevator is measured, the elevator comprising an elevator ma... | 06/26/1990 |
| 4916955 | Crystal ingot lifting load measuring device A load measuring device for measuring the pulling up load of a monocystalline rod (38) grown by the Czochralski method utilizes a strain gauge (20). The monocrystalline rod (38) is pulled up by wire rope (36) consisting of multiple strands. The pulley (34... | 04/17/1990 |
| 4757719 | Round load lifting sling A round load lifting sling composed of an endless skein of threads as a load bearing core and a textile protective tube surrounding the endless skein, the endless skein carrying along a testing conductor which is connected with two connecting contacts whi... | 07/19/1988 |
| 4697798 | Apparatus for lifting equipment The invention relates to an apparatus for lifting equipment for interposing in the force flow path between the lifting equipment or the driving mechanism thereof and a load to be moved, with e.g. a transducer for detecting the load states. In known liftin... | 10/06/1987 |
| 4677579 | Suspended load measurement system A power shovel for surface mining operations is equipped with a Suspended Load Measuring (SLM) system. The SLM system determines the net weight of the material in the shovel bucket by sensing the electrical parameters of the drive motors. A microprocessor... | 06/30/1987 |
| 4643031 | Load testing A method of testing the load lifting ability of a lifting device, including connecting the lifting device to a securement able to resist more force than a weight for which the lifting device is to be tested, and operating the lifting device until the forc... | 02/17/1987 |
| 4605829 | Measuring the load on lifting equipment The measuring device is constructed as an oval chain link which upon experiencing load will tend to lengthen so that its long sides move closer to each other; switching devices or other proximity sensing devices respond to this approach to signal, for exa... | 08/12/1986 |
| 4573542 | Load-weighing apparatus for an elevator car The load-weighing apparatus faultlessly detects even smallest load variations in the lower load range. For this purpose wire strain gauges are mounted at structural parts or components of the elevator car and these structural parts or components are subje... | 03/04/1986 |
| 4566341 | Electromechanical measuring converter pin An electromechanical measuring converter pin, particularly for measuring forces having varying influence lines, the pin has a pair of two opposite cylindrical and flat surfaces (2,3). The points or lines of application of the force and reaction force (4,5... | 01/28/1986 |
| 4516645 | Load checking arrangement for a center-loaded type load cell A weighing system has a load-bearing member attached to and supported by support means. A plurality of center-loaded type load cells are fixed on the load bearing member. A plurality of load rods are provided, each load rod extending across one of the loa... | 05/14/1985 |
| 4509377 | Load testing A method of testing the load lifting ability of a lifting device, including connecting the lifting device to a securement able to resist more force than a weight for which the lifting device is to be tested, operating the lifting device until the force ex... | 04/09/1985 |
| 4509376 | Safe load indicator A dynamometer, used to measure the tension on, speed of, and direction of movement of a hoist rope on a crane, includes a frame comprising three spaced apart blocks coupled to one another by pairs of thin flexible resilient portions. Two pulleys are mount... | 04/09/1985 |
