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 |
| 7418773 | Punch and drill machine for a structural angle A machine is provided for making holes in the legs of a structural angle oriented lengthwise along the X-axis of a mutually orthogonal X, Y, and Z-axis coordinate system. The machine includes a first or main frame, a second frame moveable along the Y-axis relative t... | 09/02/2008 |
| 7047858 | Chamfer device for cutting packaging materials A chamfer cutting device for cuffing packaging materials comprises a die and a knife part which has a plurality of knives. The die can be moved toward the knife part in order to carry out a cut. The knives are arranged individually in the knife part in a force-depen... | 05/23/2006 |
| 7048898 | Apparatus for preparing a fluid for a medical procedure The invention provides an apparatus for preparing a fluid for a medical procedure by mixing of at least one medicament in the form of powder with water, the medicament is held in a vessel which defines a bottom, a side wall, and a top opening which is closed by an m... | 05/23/2006 |
| 5555786 | Rotary press cutters In a rotary press cutter for the production of envelope blanks, a flexible foil cutting die (8) is used. The leading edge of the foil cutting die (8) is anchored against a leading face (20) of the rotary punching roller (10), and the trailing portion of t... | 09/17/1996 |
| 5293799 | Punching and perforating unit with combined punching and perforating cylinders A punching and perforating cylinder and a die and anvil cylinder are part of a computer paper processing system producing the line holes and the cross perforation in a continuous paper web. The PUNCH/PERF cylinder is mounted on an upper shaft, while the D... | 03/15/1994 |
| 5019028 | Method and apparatus for perforating and/or severing tubular bodies Tublar workpieces are formed with perforations of desired size and/or shape by repeatedly piercing selected portions of the workpieces by needles, pins or analogous piercing tools. The tools can be stationary while the workpieces roll therealong, or the w... | 05/28/1991 |
| 4854203 | Continuous motion perforator A perforator has an inner drum positioned within an outer drum. The drums define a nip through which a web of photographic film or other material is fed for forming perforations in the web by punches and dies on the drums. The dies are formed in a strip c... | 08/08/1989 |
| 4846033 | Apparatus for making blanks and strips of blanks Polygonally-shaped blanks useful in making products such as can parts are formed by dividing a relatively wide web of material into a plurality of relatively narrow strips, each strip having longitudinal edges delimited by scroll lines formed from a plura... | 07/11/1989 |
| 4821617 | Cutting or ripping blade A cutting blade (1) comprising a disc (2) intended for rotation and having attachment means arranged in its center of rotation (3') and teeth (5) or the like arranged on the periphery thereof. Formed in the disc (2) are slots (7, 8) or recesses which exte... | 04/18/1989 |
| 4404879 | Accurately placed stress concentrating aperture in flexible packages An "easy open" feature for a sealed flexible pouch and method and apparatus for accurately positioning said feature in the sealed border region of said flexible pouch. The feature comprises a stress concentrating aperture exhibiting a strong tendency to i... | 09/20/1983 |
| 4250786 | Punching tool A punching tool comprises a plurality of knives, which constitute an annular array and are provided with wedge-shaped cutting edges. Each knife is vertically adjustably secured to a vertical knife holder. Adjacent knife holders are detachably interconnect... | 02/17/1981 |
