Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 4071451 | Liquid filtration system A filtration system for removing both large, bulky and small, compactible solid contaminants from a liquid, intended primarily for the collection of chips and purifying and recycling coolant liquids used in machining and other metal working operations. Co... | 01/31/1978 |
| 4067807 | Process and apparatus for the operation of a filter press having a pressure tank communicating therewith A process and apparatus for operating a filter press having a sludge feed pump and a pressure tank in communication therewith wherein during filtration a quantity of sludge is withdrawn and stored in the pressure tank under a cushion of compressed air and... | 01/10/1978 |
| 4060483 | Method and apparatus for effecting the cleaning of a fluid filter A method for effecting the cleaning of a clogged fluid filtering member in a filtering system situated between an inlet and an outlet port comprising utilizing at least a portion of the fluid to be filtered in said system to impart motion to a movable hol... | 11/29/1977 |
| 4043906 | Method and apparatus for reducing the transient effects of liquid compressibility in a liquid chromatography system Method and apparatus for damping oscillatory behavior and reducing the effective time constant incident to reattainment of equilibrium pressure and flow following a change in fluid pressure or flow rate in a liquid chromatography system. The system may in... | 08/23/1977 |
| 4037338 | Vacuum belt filters This invention relates to improvements in or relating to vacuum belt filters. It relates further to suction boxes for such filters and to a method of operation of the filters. More particularly, the invention relates to the supporting of the belt of the f... | 07/26/1977 |
| 3977970 | Apparatus for and method of filtering solid particles from a particulate-bearing liquid Waste water containing particulate matter is saturated with air or other gas by a dynamic mixer and ejected into a gravity filter system at a point above the filter media but below the water surface level. Upon entering the filter tank, the dissolved gas ... | 08/31/1976 |
| 3957637 | Filtration system and flow control method therefor A method and apparatus for controlling the operation of gravity or pressure filters in a filtration system. A bank of filter beds are provided for removing suspended solids from the fluid medium which are fed to the filters via a common inlet conduit. Eac... | 05/18/1976 |
| 3933650 | Apparatus for filtering fluids An apparatus for filtering fluids to remove solid discard particles therefrom, in which the apparatus includes a housing having a filter chamber, an inlet-side sealing chamber, and a discharge-side sealing chamber, a movable fluid inlet member which is mo... | 01/20/1976 |
