Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6923841 | Filter element of an air filter with far infrared energy A filter element of an air filter includes a main body and a substrate. The far infrared emission powder substances are embedded at certain grain sized and at certain ratio to the substrate, thereby forming the main body that is adapted in form to various internal c... | 08/02/2005 |
| 6918316 | Adjustable pedal assembly An adjustable pedal assembly includes a mounting arrangement (1) for attachment to a vehicle structure (37), an accelerator pedal (6), a brake pedal (7), and a clutch pedal (8). The pedals (6, 7, 8) are pivotally supported w... | 07/19/2005 |
| 6475457 | Process for manufacturing potassium nitrate fertilizer and other metal nitrates A process for producing potassium nitrate and other metal nitrates from the chlorides, sulfates, oxides of these metals. The process uses nitrogen dioxide as a true fluidizing medium in shallow beds of the aforementioned solids at moderately elevated temp... | 11/05/2002 |
| 6022992 | Acid-salt metathetic process A cation exchange membrane mediated acid-salt metathetic process. An aqueous salt solution is placed into a first compartment on one side of the membrane together with an organic amine extractant of limited water miscibility, and an aqueous acid solution ... | 02/08/2000 |
| 5238661 | Process for the preparation of low-chloride aqueous titanyl nitrate solutions The application relates to a process for the preparation of low-chloride aqueous solutions of titanyl nitrate which have a chloride content of less than 200 ppm by treatment with nitric acid and excess nitric acid and/or hydrogen peroxide.... | 08/24/1993 |
| 5174985 | Process for the oxidation of water-insoluble organic compounds Water-insoluble chlorinated hydrocarbons can be largely degraded by mixing with nitric acid and heating to temperatures of 150° C. to 350° C. under pressures of 6 bar to 350 bar.... | 12/29/1992 |
| 5110578 | Continuous production of potassium nitrate via ion exchange Potassium nitrate is produced by contacting nitric acid with a potassium loaded strong cationic exchange resin. In a preferred embodiment, a solution of potassium nitrate and dilute nitric acid is produced in a continuous liquid solid contacting apparatus... | 05/05/1992 |
| 4378342 | Process for the manufacture of potassium nitrate The present invention relates to a process for the manufacture of potassium nitrate from potassium chloride and nitric acid. According to the invention, potassium chloride and nitric acid are reacted in an aqueous medium at a temperature in the range of b... | 03/29/1983 |
| 4364914 | Process for the manufacture of potassium nitrate with co-production of hydrochloric acid The present invention relates to a process for the manufacture of potassium nitrate with co-production of relatively concentrated aqueous solution of hydrochloric acid. According to the invention, potassium chloride and nitric acid are reacted in the medi... | 12/21/1982 |
| 4175116 | Non-electrolytic production of chlorine utilizing HC1 derived from a cyanogen chloride process This invention relates to an improved process for preparing cyanogen chloride by reacting chlorine and hydrogen cyanide in a manganous chloride-containing aqueous medium to form gaseous cyanogen chloride and dissolved hydrogen chloride and to the subseque... | 11/20/1979 |
| 4158579 | Method for recycling heat treating salts A system for recycling heat treating salts such as nitrates and nitrites from a rinse bath including means to prevent the excessive build-up of impurities such as carbonates or chlorides which impair heat treat efficiency. For example, carbonates which fo... | 06/19/1979 |
