Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Class Information
Number: 400/663
Name: Typewriting machines > Locking or interlocking mechanism
Description: Subject matter wherein significance is attributed to means for preventing an operation from occurring or to means for preventing a normally movable member from moving, or wherein significance is attributed to means for preventing two mutually exclusive operations from occurring simultaneously or to means for preventing two mutually exclusive movable members from moving simultaneously.


Sub-classes under this class:

Class Number Class Name Patents
400/664 For interlocking plural functions or mechanisms 20
400/674 For locking carriage in centered position (e.g., with shipping support) 8
400/678 For locking key in actuated position (e.g., to remove type-face from ink pad) 1
400/677 For locking selected group(s) of keys 5
400/667 Key-board lock using interlock mechanism 4
400/676 Key-board security lock (e.g., cover plate, etc.) 2
400/668 Locking means actuated in response to a condition 21


Patents under this class:

Patent Number Title Of Patent Date Issued
7524120 Tape printer Apr. 28, 2009
7273324 Adjustable wearable ergonomic split keyboard and mouse Sep. 25, 2007
7234884 Ribbon spool lock assembly Jun. 26, 2007
7172353 Image forming apparatus Feb. 6, 2007
7033096 Method of, and configuration for, opening a security housing Apr. 25, 2006
6916052 Cover locking/unlocking mechanism and a printer having the cover locking/unlocking mechanism Jul. 12, 2005
6851802 Image forming device including mechanism to lock cover Feb. 8, 2005
6811337 Method of, and configuration for, opening a security housing Nov. 2, 2004
6764237 Printer with cutter device Jul. 20, 2004
6637863 Print cartridge latching system Oct. 28, 2003
6626594 Printing machine with a latch for unlocking the cover Sep. 30, 2003
6604874 Printer with multifunctional lever actuated mechanism Aug. 12, 2003
6503009 Recording paper cutting mechanism Jan. 7, 2003
6494633 Transportable ink jet printer apparatus Dec. 17, 2002
6494631 Printer with ribbon fold out mechanism Dec. 17, 2002
6485210 Clamshell device for printers Nov. 26, 2002
6341838 Recording apparatus Jan. 29, 2002
6267520 Printer head release mechanism Jul. 31, 2001
6261013 Door mounted roll support Jul. 17, 2001
6200043 Sheet feeding apparatus and image forming apparatus having such sheet feeding apparatus Mar. 13, 2001
6113292 Printer head release mechanism Sep. 5, 2000
5760814 Device for uncurling thermal sensitive recording paper Jun. 2, 1998
5209591 Sheet guide mechanism for a printer May. 11, 1993
5201588 Printer with openable paper web cassette mounting a platen roller Apr. 13, 1993
5158382 Integral locking device for a typewriter Oct. 27, 1992
5039232 Office machine including a multicolor plotting mechanism Aug. 13, 1991
5026186 Vibrating apparatus including means for absorbing vibration and for locking vibrating unit against movement Jun. 25, 1991
5020429 Die protection assembly for preventing fraudulent printing by an electronic postage meter Jun. 4, 1991
5014212 Apparatus for dispensing money orders May. 7, 1991
4986679 Mechanism for detecting presence of ribbon stopper in a ribbon cassette used in a printer Jan. 22, 1991
4830523 Compliant head loading mechanism for thermal printers May. 16, 1989
4808020 Carriage fixing mechanism for printing apparatus Feb. 28, 1989
4773773 Printer equipped with a mechanism for locking the carriage of a printing head Sep. 27, 1988
4740096 Electronic apparatus equipped with power-saving printer Apr. 26, 1988
4632584 Serial printer Dec. 30, 1986
4621334 Personal identification apparatus Nov. 4, 1986
4497987 Keyboard spacer Feb. 5, 1985
4299505 Shift mechanism Nov. 10, 1981
4211499 Paper feeding control apparatus Jul. 8, 1980
4124314 Justifying text writing composing machine Nov. 7, 1978
4061220 Correcting device for typewriters Dec. 6, 1977



 
 
  Recently Added Patents
Virtual devices and virtual bus tunnels, modules and methods
Electrical connector with programmable lead frame
Radio communication method between a base station and mobile terminals
Heating system for bathing unit
System and method for reducing call establishment delay in a wireless network
Universal annotation configuration and deployment
Vehicle having a front end body structure
  Randomly Featured Patents
Measurement and analysis of mercury-based pseudo-field effect transistors
Electrostatographic apparatus and method with programmable toner concentration decline with the developer life
Graphical representation of computer network topology and activity
Grounding connector
Photosensitive redox solutions
Pattern display system
Method of and apparatus for manufacturing instant photography film unit
Environmentally safe pump including seal
CSP chip stack with flex circuit
Pet food snack