Patents by Inventor Mordechai Hammer

Mordechai Hammer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Extendible and retractable reaching tool
    Patent number: 5881601
    Abstract: An extendible-retractable device, which is made up of a number of interconnected members and to which a suitable tool may be attached. The device makes it possible to continually change the position of the tool as a task is being performed. The device includes members which are attached to each other through flexible cables so that relatively small movements of a handle or similar device in the hand of the user results is relatively large extension or retraction movements of the farthest member which carries the tool.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: March 16, 1999
    Inventor: Mordechai Hammer
  • Device capable of positive extension and retraction using a casading force transfer
    Patent number: 5324086
    Abstract: An extendible-retractable device, which is made up of a number of interconnected members and to which a suitable tool may be attached. The device makes it possible to continually change the position of the tool as a task is being performed. The device includes members which are attached to each other through flexible cables so that relatively small movements of a handle or similar device in the hand of the user results is relatively large extension or retraction movements of the farthest member which carries the tool.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: June 28, 1994
    Inventor: Mordechai Hammer
  • Device for positively telescopically extending and retracting
    Patent number: 5322334
    Abstract: An extendible-retractable device, which is made up of a number of interconnected members and to which a suitable tool may be attached. The device makes it possible to continually change the position of the tool as a task is being performed. The device includes members which are attached to each other through flexible cables so that relatively small movements of a handle or similar device in the hand of the user results is relatively large extension or retraction movements of the farthest member which carries the tool.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: June 21, 1994
    Inventor: Mordechai Hammer
  • Page-turning device
    Patent number: 4463651
    Abstract: A page-turning device comprises a bi-directional drive and a page-turning unit including an arm of crescent shape having an outer convex surface engageable with the underface of the uppermost page on one side of the book center-line for turning same when the unit is driven in one direction, and an inner concave surface engageable with the uppermost page on the other side of the book center-line for turning the page when the unit is driven in the opposite direction. The unit preferably has two (or more) such arms equally spaced about the circumference of the unit. The illustrated device includes two of such page-turning units, one serving to turn the pages and the other serving to pick them up according to the drive direction. Each unit may include a helical recess for pre-loading the pages, or an arcing finger for arcing each page before being engaged by the respective arm.
    Type: Grant
    Filed: June 16, 1982
    Date of Patent: August 7, 1984
    Inventor: Mordechai Hammer