Case-shift Mechanism Patents (Class 400/251)
Including programmed-control-system (Class 400/252)
Including electronic control or code-bar control (Class 400/253)
Controlled by typewriter-actuated mechanism (Class 400/254)
Including plural case-shift mechanisms (e.g., for simultaneous or selective use) (Class 400/255)
Actuated by toggle-linkage (Class 400/256)
For case-shift by type-head (e.g., spherical type-head) movement (Class 400/257)
Power-operated mechanism (e.g., for locking shift key) (Class 400/258)
Multiple-shift mechanism (i.e., for type-bar having three or more type faces thereon) (Class 400/261)
For shifting platen (Class 400/264)
For shifting type-face or type-bar (Class 400/268)
By choosing from one of a plurality of type-bars operated by a single key (Class 400/271)
Including key attachment for case-shift (Class 400/272)
For locking case-shift mechanism in position (e.g., rebound lock, cam, etc.) (Class 400/274)
Including limit stop (e.g., block, chain, etc.) (Class 400/277)
  • Portable data system
    Patent number: 4929948
    Abstract: A transportable data system includes two units (3, 4) which are fitted in a rigid case which includes a lid (2) and a bottom part. When the lid is closed, the one unit (3), which is supported by a carrier plate, is located above the other unit (4), whereas when the case is open, with the lid substantially vertical, the one unit can be moved towards and partially into the lid, so as expose the other unit (4) and bring it to a working position. Provided are two separate side - walls (14, 15) which are fitted firmly to the bottom part (1), and each of which has an upper guide rail (6, 7). The guide rails are parallel with the bottom part and also with one another. Furthermore, the carrier plate (5) is displaceably mounted on the guide rails.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: May 29, 1990
    Assignee: Basics Corporation
    Inventor: Goran I. Holmberg