Key Obstruction Type Patents (Class 340/296)
  • Patent number: 9733541
    Abstract: An electrophoresis device including: in an insulating liquid, migrating particles in a charged state; and a porous layer including a fibrous structure and non-migrating particles, the fibrous structure having a potential opposite to that of the migrating particles, and the non-migrating particles held by the fibrous structure.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: August 15, 2017
    Assignee: Sony Corporation
    Inventors: Aya Shuto, Hidehiko Takanashi, Ken Kobayashi, Yuriko Kaino, Masakazu Mitsugi
  • Patent number: 9429810
    Abstract: An electrophoresis device includes: a plurality of electrophoretic particles included in insulating liquid and configured of a first particle and a second particle, in which the first particle and the second particle have respective charging characteristics that are different from each other; and a porous layer included in the insulating liquid and formed of a fibrous structure.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: August 30, 2016
    Assignee: Sony Corporation
    Inventors: Yuriko Kaino, Ken Kobayashi, Aya Shuto, Hidehiko Takanashi
  • Patent number: 8182548
    Abstract: An electronic device security and tracking system. A system includes one or more clients, wherein the clients are electronic devices; and a server computer system connected to each of the clients, wherein the server computer system is capable of tracking and locating each of the clients. In one aspect, the server computer system includes one or more web servers coupled to each of the clients, wherein the web servers include a website for the electronic device security and tracking system; one or more file transfer protocol servers coupled to each of the web servers; and one or more database servers connected to each of the web servers.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: May 22, 2012
    Assignee: Softex Incorporated
    Inventors: Apurva Mahendrakumar Bhansali, Manoj Kumar Jain, Shradha Dube, Gayathri Rangarajan, Mehul Ramjibhai Patel, Rayesh Kashinath Raikar, Kamal Mansukhlal Dhanani, Ranjit Kapila, Elza Abraham Varghese, Thomas David Tucker
  • Patent number: 5835014
    Abstract: Protection of manual override lock and key systems for an electronic security system is provided by an annunciator system which is activated when access to a manual override keyhole is attempted.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: November 10, 1998
    Inventor: Peter S. Morello
  • Patent number: 5760678
    Abstract: A pull box for an emergency alarm system is disclosed having a modular construction that accommodates one or more optional modules in order to provide a wide variety of possible configurations. Also, the basic design of the pull station provides for its resetting without requiring a cover of the pull station to be open. As part of the optional modules, the pull station may be configured to provide both local and general alarm signals, with the general alarm signal capable of being activated only by authorized personnel.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: June 2, 1998
    Assignee: Harrington Signal Incorporated
    Inventors: Myron F. Pavlacka, Robert L. Rankin
  • Patent number: 5670940
    Abstract: The electric lock system operates to block access to the room when a guest key has been used and the guest is detected as being present in the room. The lock blocks access to hotel staff and provides the guest greater privacy in the room. The lock system employs an electronic lock in combination with a motion detector for detecting the presence of the guest in the room.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: September 23, 1997
    Assignee: TrioVing a.s
    Inventors: Glen Holcomb, William Reed
  • Patent number: 5550529
    Abstract: An electronic security enclosure conceals a device, such as a switch, valve, outlet, or lock, behind a movable member. When the movable member is unlocked, by an electronic key, and moved to reveal the concealed device, the key is captured, preventing its removal until the enclosure is again secured over the device. A variety of operational features, including provision for keyholder access restrictions, time-of-day restrictions, provision of different classes of keys for employees and vendors, etc., are also provided. The invention also contemplates a plurality of access control devices, including lock boxes, padlocks, mortise locks, cam locks, etc., that are each operable by a common electronic key.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: August 27, 1996
    Assignee: Supra Products, Inc.
    Inventor: Gregory L. Burge
  • Patent number: 5276438
    Abstract: A triode type electrophoretic display (10) includes a pair of substantially identical glass faceplates (12, 14) sealed to a pair of interstitial spacers (16a, 16b) to form a fluid-tight envelope for containing an electrophoretic fluid. An anodized black screen or mesh element (28) is sandwiched between the spacers and is opaque when viewed by the naked eye, thereby providing enhanced background coloration and contrast with pigment particles suspended in the fluid. The mesh (28) occupies an intermediate position relative to the extreme limits of travel of the particles as controlled by grid (18) and cathode (20) deposited upon one faceplate (14) on one side and the anode (26) deposited upon the other faceplate (12) on the other side. The screen (28) is porous, permits particles to pass through it, and is biased electrically to assist in moving the particles during formation of a displayed image.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: January 4, 1994
    Assignee: Copytele, Inc.
    Inventors: Frank J. DiSanto, Denis A. Krusos