| Patent Number |
Title Of Patent |
Date Issued |
| 5275495 |
Ribbon re-inking mechanism |
January 4, 1994 |
| A re-inker mechanism is described for replenishing ink in a ribbon by increasing the contact force between an ink supply roller and a transfer roller as the weight of the ink supply roller decreases. This is accomplished by locating the transfer roller rotatably in a fixed position a |
| 5135148 |
Forms feed tractor for a printer |
August 4, 1992 |
| A tractor mechanism has an endless pin belt entrained around spaced drive and idler sprockets mounted between a pair of frame members. The idler sprocket is supported by a carrier movable longitudinally by springs to apply tension to the belt. The edges of the belt overhang gear teeth of |
| 4981244 |
Pin belt for movement of perforated strip |
January 1, 1991 |
| A feed mechanism for transporting paper has an endless band with transport pins for insertion into the perforations in circular perforations in the paper. The feed pins are part of drive elements attached through perforations in an endless flexible band to gear teeth which are engaged |
| 4951859 |
Anti-flutter tractor door |
August 28, 1990 |
| A tractor feed mechanism for feeding print forms comprises a continuous flexible pin belt wrapped around a pair of drive pulleys rotatably supported by a tractor body. Pins projecting from the flexible belt engage the forms via perforation in the forms. A door pivotally connected to the |
| 4870272 |
Transducer adjustment apparatus for shaft encoder |
September 26, 1989 |
| Apparatus for adjustably positioning a supported transducer in sensing relation with recorded indicia on a shaft encoder in which a first frame portion is fixed and a second movable portion carrying the transducer is attached to the frame portion through a flexure means with the flexure |
| 4844314 |
Pulley for forms feed tractor |
July 4, 1989 |
| A tractor for feeding perforated paper has an endless belt of flexible material having pins and teeth extending in opposite directions from said belt. The belt has more rigid sections corresponding to the locations of the teeth between flexible web sections. A pulley is provided which ha |
| 4817842 |
Door and spring assembly for a paper feed mechanism |
April 4, 1989 |
| A feed mechanism for a printer having a door with hinge elements connected by hinge pins to the tractor body so as to be rotatable between first and second position. The hinge elements have rotary cams with convex and planar surfaces. A single flat steel spring is simply supported betwee |
| 4397576 |
Print head actuator |
August 9, 1983 |
| Apparatus for moving a print heat of a serial matrix printer into or out of contact with a recording medium in which the required motion is achieved during translation of the print head along the print line by a cam and follower and in which the contact pressure of the print heat is |
| 4255708 |
Magnetoresistive position transducer with invariable peak signal |
March 10, 1981 |
| Position identifying transducer using a pair of serially connected magnetoresistive elements with an output terminal at their juncture and which lie in a common plane with the flux-sensitive areas of each element symmetrically disposed about a common center line that is transverse to |
