Class / Patent application number | Description | Number of patent applications / Date published |
403342000 | THIMBLE: SCREW OR CAM | 8 |
20090245934 | BUSHING STRUCTURE FOR SHEATHING A SHAFT OF A TONER SUPPLY MEMBER - A bushing structure includes a base. A first hole is formed on the base. The bushing structure includes a supply member bushing installed inside the first hole of the base. An opening is formed on the supply member bushing for sheathing a shaft of a supply member. At least one groove is formed on an inner wall neighboring to the opening of the supply member bushing. | 10-01-2009 |
20100329776 | CLAMPING ASSEMBLY - A clamping assembly ( | 12-30-2010 |
20140050522 | Horizontal Directional Drill Pipe Drive Connection With Locking Feature - The present invention is directed to a spindle assembly for connecting a drill string to a rotational drive for use in a horizontal directional drilling operation. The assembly comprises a saver sub attached to the rotational drive, and a drive chuck for connection to the drill string. The drive chuck and saver sub form a torque-transmitting connection by engaging through a seat in the saver sub and an engagement point on the drive chuck. Dowel pins may be used to rotationally lock and provide the engagement between the saver sub and the drive chuck. A collar may thread to the saver sub and cause an interference fit by engaging the drive chuck at a shoulder. | 02-20-2014 |
20140105678 | COUPLER - A coupler includes a first hollow sleeve, a plurality of tapered clamps and a second hollow sleeve. The first hollow sleeve is formed with a first inner threaded portion on the inner face of one end while the other end thereof a tapered face. The diameter of tapered face increases toward the first inner threaded portion. The outer face of each tapered clamp is formed with a second tapered face, which contacts the first tapered face. The inner face of each tapered clamp has a plurality of teeth conforming to one end portion of the first bar. One end of the second hollow sleeve is formed with a first outer threaded portion and the first outer threaded portion conforms to the first inner threaded portion. The second hollow sleeve is formed with a second inner threaded portion, which matches a second outer threaded portion of the second bar. | 04-17-2014 |
20140161515 | Method and Apparatus for Mounting a Machine Element onto a Shaft - A mounting device for coaxially anchoring a machine element upon a rotary shaft is provided. The device fits between the interior bore of the machine element and the cylindrical surface of the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has inner and outer sleeves, the mating surfaces of which are similarly tapered so that relative axial displacement of the sleeves affects expansion and contraction of the interior bore and external surface of the combined elements. Rotation of a threaded nut at one end of the device effects the relative axial displacement of the inner and outer sleeves to afford expansion and contraction of the sleeves without excessively straining the material of the sleeves or the nut. | 06-12-2014 |
20140348579 | STRUCTURE FOR PREVENTING DROPPING OF PROPELLER SHAFT - A fall-off preventing structure of a propeller shaft does not allow a companion flange to be completely pulled off and dropped from a spline shaft when a nut loosens and comes off. In the propeller shaft, a round shaft part is provided on a front end of the spline shaft, a length of a threaded part of the spline shaft front end side on which the nut is screwed and the round shaft part is set longer than a length from a front end portion of the companion flange to a seat surface of the nut, and a total length of the length of the threaded part and the round shaft part and a length from the front end portion of the companion flange to the seat surface of the nut is set longer than the tolerable slide amount. | 11-27-2014 |
20160153482 | DEVICE FOR FIXING TWO PARTS TOGETHER | 06-02-2016 |
20160376851 | Device For The Connection of Rods For A Downhole Pumping Apparatus - A device for connecting sucker or drive rods, consisting of a threaded coupling and like threaded pins of adjacent rods. The ends of the pins are equipped with dogs, or lugs, that interlock, firmly linking the rods torsionally. The coupling is threaded along one of the rod pins until the dogs, or lugs, are exposed, then engaging those exposed elements with dogs, or lugs, of the adjacent rod, and finally reversing the rotation of the female coupling so that it threads back over both rods' threaded pins, and covers the engaged dog clutch elements. The rods are connected torsionally via the engaged dogs, or lugs, with the coupling serving only to keep the dogs, or lugs, engaged and to carry the tensional load of the connection. Such a connection provides a stronger torsional link between rods than connections currently available. The connection also does not require the special make-up procedure of the current systems and cannot over-tighten or back off during operation. | 12-29-2016 |