Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7281848 | X-ray tube mounting methodology An imaging assembly is provided comprising an x-ray tube housing having a tube mounting hub and formed from a lightweight material. A rotating gantry assembly includes a gantry mounting surface adapted to engage said tube mounting hub. A plurality of barrel nut fast... | 10/16/2007 |
| 7278500 | Roller cutter A roller cutter includes a hub having crushing members mounted on an outer periphery thereof, and a shaft on which the hub is mounted for rotation. Opposite ends of the shaft include respective spigots. Seals are disposed adjacent respective ends of the shaft and ar... | 10/09/2007 |
| 7234549 | Methods for evaluating cutting arrangements for drill bits and their application to roller cone drill bit designs A method for evaluating a cutting arrangement for a drill bit includes selecting a cutting element arrangement for the drill bit and calculating a score for the cutting arrangement. This method may be used to evaluate the cutting efficiency of various drill bit desi... | 06/26/2007 |
| 6929077 | Boring head, roller cutter and saddle for a boring head for rotary drilling A raise boring head includes a roller cutter body and a saddle intended for rotary drilling in earth and rock formations. The roller cutter body is rotatably journalled on a shaft that is provided with two shaft spigots at its opposite ends. Each spigot has a second... | 08/16/2005 |
| 6708786 | Mounting attachment and bearing system for an industrial earth-boring cutter A rotary cutter mount for an earth-boring cutter includes a bearing journal adapted to be coupled to a cutter body. A first mounting end of the bearing journal is shaped to enable rotationally fixed positioning in a corresponding yoke. The yoke is operatively couple... | 03/23/2004 |
| 5577565 | Compact roller cutter A roller cutter assembly for use in hard rock tunneling machines comprises a rectangular saddle having a rectangular recess with V-shaped mounting surfaces. Support plates are secured against these mounting surfaces, and the support plates have a shaft ex... | 11/26/1996 |
| 5487435 | Mounting system for raise and shaft cutters A bit body with a mount having a leg that extends along the rotational axis of the bit, a journal with a wedge shaped end secured to a wedge shape opening in the leg. A wedge on the journal has a fastener hole to register coaxially with a fastener hole in... | 01/30/1996 |
| 5421422 | Roller cutter mount for tunneling machine The cutter head of a tunnelling machine is mounted for rotation about the axis of the tunnel and has a face extending on a plane perpendicular to that axis. The cutter head serves as a mount for a plurality of roller cutters, each of which is mounted in a... | 06/06/1995 |
| 4832136 | Drill bit and roller cutter for said drill bit A drill bit has a plurality of roller cutters mounted on a front face of the drill bit. The roller cutters are mounted in pairs which are equidistantly spaced from an axis of rotation of the drill bit. Each roller cutter is rotatably mounted in a saddle a... | 05/23/1989 |
| 4760890 | Cutter assembly for rotary boring of earth A cutter assembly for rotary boring of earth. The assembly comprises a rotating cutter having a shaft protruding from the ends of the cutter; and a mounting member for the rotating cutter. The mounting member comprises two legs the ends of which are provi... | 08/02/1988 |
| 4448271 | Earth boring device A roller cutter assembly for rotary boring of the face of earth formations comprising a boring head (16) and a plurality of roller cutters (14) mounted in mounting members (15). The bearing shafts (25) of the roller cutters (14) are secured to the mountin... | 05/15/1984 |
| 4202418 | Roller cutter mounts Roller cutters are mounted onto a cutterhead from the rear side of the cutterhead. A load transfer block is insertable between a stator portion of each cutter and a generally forwardly directed load-carrying surface on the cutter-head frame. Loads imposed... | 05/13/1980 |
| 4193464 | Replaceable shirttail A removable shirttail of an earth boring tool, such as a hole opener, protects the seals and bearings of an associated cutter. In one embodiment, the shirttail attaches to a journal or mounting shaft of the cutter by threaded fasteners. In an alternate em... | 03/18/1980 |
| 4129392 | Rolling cutter arrangement A mounting structure for rolling cutter assemblies, especially gauge cutters, is disclosed wherein a saddle on a support structure is provided with a first sloping wall, a base portion joining said sloping wall and an abutment region facing the sloping wa... | 12/12/1978 |
| 4126195 | Replaceable wear pad for a rock bit cutter yoke A cutter assembly for a rotary head of a drilling machine comprises a yoke having a base for attachment to the rotary head, a pair of legs depending from the base, and an asymmetrical mounting hole through each leg, the hole being aligned with each other.... | 11/21/1978 |
| 4046206 | Locking apparatus for earth boring cutter or stabilizer The rolling cutter or stabilizer member of a rotary drill string unit is effectively locked in place by a locking device. The device allows the cutter or stabilizer member to carry radial, tangential and axial loads. A support member includes a surface po... | 09/06/1977 |
| 4036313 | Mounting for inboard cutters on a raise drill A raise drill having a central drive stem to which a surrounding cutter mounting frame is attached, the cutter mounting frame supporting a plurality of rotary cutter units. One or more inboard cutter units each include a shaft and a rotary cutter journale... | 07/19/1977 |
| 4036314 | Hole opener with improved rotary cutter mounting This earth boring drill apparatus has a cutter mounting leg extending from one side of a drive stem and a removable cutter assembly, including a fixed shaft and cutter journaled for rotation on the shaft supported between the drive stem and the mounting l... | 07/19/1977 |
| 4007799 | Raise drill with replaceable stem A raise type of earth boring drill in which the cutter assembly is detachably secured to the drive stem to permit replacement of the stem. The stem slidably engages a central opening in the cutter assembly, the cutter assembly engaging a shoulder on the s... | 02/15/1977 |
| 4004644 | Roller cutter In the saddle structure of the improved drill bit cutter assembly of the invention both spaced-apart legs are provided with bores each extending through the leg to receive a clamping bolt. These bores extend in directions including between them an angle o... | 01/25/1977 |
