Patents by Inventor Moshe Cohen-Ravid
Moshe Cohen-Ravid 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).
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Patent number: 6886620Abstract: A security bar assembly has a plurality of bars that extend across an opening and have ends joined to drive chains. The bars may extend between two channels positioned on opposite faces of the opening, and may be slidable within the channels. The ends of the bars may be retained in the channels and the ends may have connections to chain links in opposing drive chains which are spaced apart a predetermined number of links to keep the bars a predetermined distance apart. A drive mechanism may be provided for moving the drive chains to slide the bars in the channels and a storage area adjacent the opening associated with the channels to retain the bars when they are not in place over the opening. The channels may each enclose a drive mechanism for independently moving the bar ends in each channel. In such embodiments, the drive mechanisms in the channels may be independently driven respectively by first and second motors. The first and second motors may be synchronized by a non-mechanical communication link.Type: GrantFiled: June 5, 2002Date of Patent: May 3, 2005Inventors: Moshe Cohen-Ravid, John A. Lane
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Patent number: 6868891Abstract: A security bar assembly has a plurality of bars that extend across an opening and have ends joined to drive chains. The bars may extend between two channels positioned on opposite faces of the opening, and may be slidable within the channels. The ends of the bars may be retained in the channels and the ends may have connections to chain links in opposing drive chains which are spaced apart a predetermined number of links to keep the bars a predetermined distance apart. A drive mechanism may be provided for moving the drive chains to slide the bars in the channels and a storage area adjacent the opening associated with the channels to retain the bars when they are not in place over the opening. Transfer mechanisms are provided for moving the security bars between a stored position and a position in which the bars engage the bar drive chain.Type: GrantFiled: March 13, 2001Date of Patent: March 22, 2005Inventors: Moshe Cohen-Ravid, John Alexander Lane
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Patent number: 6640871Abstract: In one aspect, the invention provides an endless loop lock including a drive wheel adapted to be driven or not driven. An endless loop may be provided, engaging the drive wheel and adapted to be driven by the drive wheel to move a device, such as a security bar, connected to the endless loop. A guide may be provided, biased against the endless loop at a position spaced apart from the drive wheel. A lock may be provided, for engaging the endless loop to inhibit movement of the endless loop, the guide being positioned to bias the endless loop out of engagement with the lock when the endless loop is driven by the drive wheel. The lock may be actuated by a force applied to the device connected to the endless loop when the drive wheel is not driven.Type: GrantFiled: September 28, 2001Date of Patent: November 4, 2003Inventors: Moshe Cohen-Ravid, John Alexander Lane
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Publication number: 20030178152Abstract: A security bar assembly has a plurality of bars that extend across an opening and have ends joined to drive chains. The bars may extend between two channels positioned on opposite faces of the opening, and may be slidable within the channels. The ends of the bars may be retained in the channels and the ends may have connections to chain links in opposing drive chains which are spaced apart a predetermined number of links to keep the bars a predetermined distance apart. A drive mechanism may be provided for moving the drive chains to slide the bars in the channels and a storage area adjacent the opening associated with the channels to retain the bars when they are not in place over the opening. Transfer mechanisms are provided for moving the security bars between a stored position and a position in which the bars engage the bar drive chain.Type: ApplicationFiled: March 26, 2003Publication date: September 25, 2003Inventors: Moshe Cohen-Ravid, John Alexander Lane
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Publication number: 20030019587Abstract: A security bar assembly has a plurality of bars that extend across an opening and have ends joined to drive chains. The bars may extend between two channels positioned on opposite faces of the opening, and may be slidable within the channels. The ends of the bars may be retained in the channels and the ends may have connections to chain links in opposing drive chains which are spaced apart a predetermined number of links to keep the bars a predetermined distance apart. A drive mechanism may be provided for moving the drive chains to slide the bars in the channels and a storage area adjacent the opening associated with the channels to retain the bars when they are not in place over the opening. The channels may each enclose a drive mechanism for independently moving the bar ends in each channel. In such embodiments, the drive mechanisms in the channels may be independently driven respectively by first and second motors. The first and second motors may be synchronised by a non-mechanical communication link.Type: ApplicationFiled: June 5, 2002Publication date: January 30, 2003Inventors: Moshe Cohen-Ravid, John A. Lane
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Patent number: 6394167Abstract: A security bar assembly has a plurality of bars that extend across an opening and have ends joined to drive chains. The bars may extend between two channels positioned on opposite faces of the opening, and may be slidable within the channels. The ends of the bars may be retained in the channels and the ends may have connections to chain links in opposing drive chains which are spaced apart a predetermined number of links to keep the bars a predetermined distance apart. A drive mechanism may be provided for moving the drive chains to slide the bars in the channels and a storage area adjacent the opening associated with the channels to retain the bars when they are not in place over the opening. Transfer mechanisms are provided for moving the security bars between a stored position and a position in which the bars engage the bar drive chain.Type: GrantFiled: March 13, 2000Date of Patent: May 28, 2002Inventors: Moshe Cohen-Ravid, John Alexander Lane
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Publication number: 20020036068Abstract: In one aspect, the invention provides an endless loop lock including a drive wheel adapted to be driven or not driven. An endless loop may be provided, engaging the drive wheel and adapted to be driven by the drive wheel to move a device, such as a security bar, connected to the endless loop. A guide may be provided, biased against the endless loop at a position spaced apart from the drive wheel. A lock may be provided, for engaging the endless loop to inhibit movement of the endless loop, the guide being positioned to bias the endless loop out of engagement with the lock when the endless loop is driven by the drive wheel. The lock may be actuated by a force applied to the device connected to the endless loop when the drive wheel is not driven.Type: ApplicationFiled: September 28, 2001Publication date: March 28, 2002Inventors: Moshe Cohen-Ravid, John Alexander Lane
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Patent number: 6035917Abstract: A foldable security bar assembly, is convenient, aesthetic and less costly than existing security systems, and is used primarily for security rather than a shutter assembly. The assembly is for placing over or in an opening and has a plurality of horizontal bars extending between two channels, the two channels positioned one on each side of the opening with the bars slidable vertically within the channels. A plurality of connector links join adjacent bars together with at least one of the bars having a connection at each end within the channels to a raising and lowering mechanism in each channel coordinated to raise and lower the at least one bar and hence the whole assembly. A drive system is provided for the raising and lowering mechanism, and guides above or below the channels guide and retain the horizontal bars in a folded configuration above or below the opening with alternate bars on opposite sides.Type: GrantFiled: March 20, 1997Date of Patent: March 14, 2000Assignee: Ravco Innovations, Inc.Inventor: Moshe Cohen-Ravid
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Patent number: 5957181Abstract: A security bar assembly has a plurality of bars that extend across an opening and have ends joined to drive chains to provide an easily removable assembly. The bars extend between two channels positioned on opposite faces of the opening, and are slidable within the channels. The ends of the bars are retained in the channels and the ends have connections to chain links in opposing drive chains which are spaced apart a predetermined number of links to keep the bars a predetermined distance apart. A drive mechanism is provided for moving the drive chains to slide the bars in the channels and a storage area adjacent the opening associated with the channels to retain the bars when they are not in place over the opening.Type: GrantFiled: October 28, 1997Date of Patent: September 28, 1999Assignee: Ravco Innovations, Inc.Inventors: Moshe Cohen-Ravid, Lon W. McIlwraith