Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 8434970 | Breakable rock bolt A rock bolt is disclosed, which includes first and second ends, a shaft extending between the ends, the shaft incorporating a hollow metal rod including at least one breaking zone and wherein the shaft is arranged to preferentially break in the breaking zone when im... | 05/07/2013 |
| 6637980 | Method and apparatus for re-tensioning a roof bolt in an underground mine A method and apparatus of re-tightening or retensioning a roof bolt in an underground mine serves the purpose of enabling the operator to place tension between the head of a permanent, epoxy-secured, roof bolt and the roof plate of a standard roof bolt sy... | 10/28/2003 |
| 6533503 | Mortar composition, curable by frontal polymerization, and a method for fastening tie bars A mortar composition, curable by frontal polymerization after heat initiation, is described, wherein are contained a) at least one polymerizable monomer and/or at least one curable resin, b) at least one polymerization initiator, which can be activated an... | 03/18/2003 |
| 5873689 | Low torque threaded fastener and mine roof support system using such a fastener A mine roof support system which includes a steel anchor rod and a threaded fastener. The rod has a threaded end portion, and which is adapted for positioning in a bore hole so that the threaded end portion projects outwardly from a rock face. The threade... | 02/23/1999 |
| 5443332 | Rockbolt tensioning A rockbolt for anchoring in a borehole and then tensioning it has a nut at its distal end whose screw threaded engagement with the rockbolt is utilised to force the nut against the surface at which the borehole is provided and cause tensioning of the rock... | 08/22/1995 |
| 5352065 | Rock bolting A drive nut (3,7) for a rock bolt, incorporating a nut (7) with a crimped protrusion (9), and an insert (3). The protrusion is crimped to form a plurality of lips (8) adapted to retain insert (3) in the head of the nut (7), the crimping being effected by ... | 10/04/1994 |
| 5033909 | Coupling for anchor rod and sleeve An apparatus to be inserted into a bore formed in a structure, includes a sleeve having an aperture. A rod is designed to be inserted into the aperture. A coupling maintains the rod substantially in axial alignment with the aperture prior to insertion of ... | 07/23/1991 |
| 4955758 | Reinforcing method and means A tensionable dowel for reinforcing walls and/or roofs in excavations such as mines and tunnels is described. The dowel is particularly useful in coal mines where mine walls or roofs are subject to failure. The dowel is fabricated in fibre reinforced engi... | 09/11/1990 |
| 4764055 | Resin reinforced expansion anchor system A resin reinforced expansion anchor system for a mine roof support bolt or the like utilizes a specially configured, thin-walled expansion shell together with a thin-walled, dual-taper plug for expanding the shell. The shell and the plug cooperate to impl... | 08/16/1988 |
| 4750887 | Anchor bolt assembly An anchor bolt assembly for securing a bolt in a bore hole having a settable bonding material therein utilizes a standard smooth bolt or a rebar which has a head on one end and which is threaded to receive a nut on the other end. Improved mixing of the bo... | 06/14/1988 |
| 4662795 | Method of supporting a mine roof using nut element with breakable portion A nut element having a frangible portion for use with an elongated bar having an upper end anchored by a resin material within a drill hole in a mine roof, or the like, and a lower end extending outside the hole and threaded to receive the nut element of ... | 05/05/1987 |
| 4652179 | Method of and device for severing a tension member in a prestressed grouted anchor A prestressed grouted anchor has a portion of an axially extending prestressed tension member grouted in a receiving material while the remaining portion of the tension member extends from the grouted portion. The remaining portion is separated from the g... | 03/24/1987 |
| 4618291 | Nut member and mine roof support system incorporating same A nut member of special design is disclosed in conjunction with other elements to provide a post-tensionable mine roof support assembly. The nut member includes an upper, stem portion extending through the opening in a support plate and a lower, base port... | 10/21/1986 |
| 4431348 | Force transmission device Force transmission device suitable for the performance of deformation work comprising a bush having a tapering interior, including a particulate filling material in the form of spheres and/or a granulate and a ribbed rod passing through the bush, the part... | 02/14/1984 |
| 4193715 | Mine roof support method and apparatus A rock formation, such as the roof of a mine tunnel, is reinforced by use of the apparatus of the invention to provide an anchor for a rock bolt which is tensioned to hold a support plate or similar structure in firm engagement with the face of the rock s... | 03/18/1980 |
| 4122681 | Mine roof support assembly A support assembly for a mine roof, or the like, including a bolt carrying a support plate for engagement with the roof surface, an internally threaded cylindrical collar, and an elongated bar. The bar and bolt are threaded into opposite ends of the colla... | 10/31/1978 |
| 4051683 | Method and apparatus for supporting a mine roof A reinforcing rod having a threaded end portion with a coupling secured thereto is inserted in a drill hole of a rock formation, such as a mine roof, with the threaded end adjacent the emergent end of the drill hole and the opposite end in contact with ca... | 10/04/1977 |
| 4023373 | Anchor bolt assembly and utilization An anchor bolt assembly for strengthening mine roofs constructed of a cylindrical anchor member having a bolt threadably received in one end and a temporary thread advancing stop carried on the stem of the bolt which releases or gives only after a predete... | 05/17/1977 |
| 3979918 | Rock bolts The present invention relates to chemical anchor rock bolts and to a method of installing the anchor bolts. Such bolts are provided with a clamping member or nut which is adapted while being driven thereby to remain in fixed engagement with the bolt shank... | 09/14/1976 |
