Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7108294 | Composite pipe assembly and components A plastic coupling for joining two metal pipe sections end-to-end to form a pipe assembly. A first plastic spigot cuff is formed along the periphery of the end of the first pipe and a mating second plastic bell cuff is formed along the periphery of the end of the se... | 09/19/2006 |
| 7083204 | Composite metal pipe coupling and assembly A coupling for joining metal pipes or pipe sections end-to-end to form a pipe assembly. A plastic cuff is formed on one of the pipe ends and a mating, second plastic cuff is formed on the other pipe end. In one embodiment, a wire hoop is mounted over each pipe end, ... | 08/01/2006 |
| 6916248 | Flexible coupling Flexible couplings are provided comprising a male member disposed within a female member in a spaced apart configuration, with the space being filled, at least partially, with an elastically deformable material. The male and female members comprise features that pre... | 07/12/2005 |
| 6161879 | Two-component connector A connector for connecting an assembly to a pipe, which is highly leakproof with respect to the medium to be transported and is secure against separation under axial load. The connector comprises two materials A and B which swell to different degrees. A p... | 12/19/2000 |
| 5380048 | Tube joint Circumferentially spaced bosses concentrically position a male tube end within a female tube end. The bosses have a preferred shape which permits molten brazing material to flow evenly between the tubes, ensuring a void-free joint. The bosses provide a re... | 01/10/1995 |
| 4998337 | Method for the permanent mutual connection of already finished metal tubes Method for the permanent mutual connection of the ends of at least two already finished metal tubes (1,2,3), consisting in placing the ends of said tubes in a mould, particularly an injection moulding mould, whereby one tube end or several tube ends is or... | 03/12/1991 |
| 4878695 | Expanding ring joint A joint having no external protrusions consisting of the mating cylindrical nds of two tubular members joined by interlocking cogs on the male and female ends of the tubular members, and a pair of facing ramp surfaced rings disposed in the joint with one r... | 11/07/1989 |
| 4157153 | Aluminum tube joint design The present invention relates to a tube joint and the method of assembling the joints wherein a male member that is dimensioned to be telescoped in a cup portion of a female tube member is provided with projecting nibs that project radially outwardly from... | 06/05/1979 |
| 4050363 | Air vent cover assembly This Application discloses an air vent cover assembly for a vent opening in an enclosed structure such as a boat cabin compartment. The assembly includes a connecting ring which is attached to the vent opening in the structure, and a detachable air scoop ... | 09/27/1977 |
