Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6682233 | Supporting structure of an armature of a wire dot printer head In a wire dot printer head of the present invention, an armature is formed by coupling a magnetic circuit formation member having a supported piece with one end inserted into a cavity formed on a surface of a yoke to an arm coupled to a wire. The supporte... | 01/27/2004 |
| 5244289 | Printer having device for adjusting print hammer stroke A pair of main frames extend in frontward/rearward direction of a printer body. The pair of main frames are pivotally supported on a guide shaft and laterally movable therealong. The main frames are slidingly guided by a guide member through abutment memb... | 09/14/1993 |
| 4665371 | Character spacing circuit for controlling print hammer firing A circuit for controlling the firing of a print hammer so as to maintain constant intercharacter spacing during printing. The speed of a motor which moves a document in printing relationship with a printer is used to ascertain the instantaneous velocity o... | 05/12/1987 |
| 4624588 | Full field MICR encoder A check encoder (11) for printing of full field MICR (Magnetic Ink Character Recognition) codes on checks, includes a check guide (19) and means for sensing the position of the check (25,27) in the check guide (19). A pair of fixed roller assemblies (29,3... | 11/25/1986 |
| 4383773 | Serial printer A serial printer for use in portable electronic calculators and the like. The printer includes a single printing head having a plurality of characters divided into two groups circumferentially disposed therearound in a predetermined pattern. A first selec... | 05/17/1983 |
| 4212549 | Disc printer This disc printer uses a relatively massive, rigid print disc having a flat face on which two sets of raised character fonts are arranged in separate spirals. Advantageously, the inner font set contains machine readable characters which are printable with... | 07/15/1980 |
| 4064800 | Printer device using time shared hammers There is disclosed a low to medium speed printer for use with a digital computer that is characterized by improved throughput, low cost and flexibility. These characteristics are achieved by the fact that it prints in either direction, that several print ... | 12/27/1977 |
| 4008662 | Printer ribbon drive apparatus A hammer is movable to strike paper against a rotatable type member through a ribbon for printing. The hammer is moved for printing by a rotary shaft formed with a projection which engages with the hammer upon rotation of the shaft. A rockable ribbon guid... | 02/22/1977 |
| 3987886 | Mechanism for varying the gap between the print hammers and the type font faces of a printer The present arrangement provides a housing means in and upon which are mounted at least the paper advance tractor assemblies including the drive means therefor and the print hammers of the printer. In addition the housing means is formed to have an eccent... | 10/26/1976 |
| 3967551 | Print mechanism with rockable interposing lever for print hammer A typewriting device comprising a type-carrying drum continuously driven from a drive source, a ratchet wheel continuously driven from said drive source in synchronization with said drum and having a pawl thereon, at least one rocking lever pivoted to a s... | 07/06/1976 |
