Patents by Inventor Stewart R. Carl
Stewart R. Carl 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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Publication number: 20010013234Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: ApplicationFiled: November 12, 1999Publication date: August 16, 2001Inventors: WILLIAM R. MURRAY, STEWART R. CARL, ARTHUR H. ZARNOWITZ
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Patent number: 6155088Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: GrantFiled: June 7, 1995Date of Patent: December 5, 2000Assignee: ACCO Brands, Inc.Inventors: William R. Murray, Jr., Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: 6112562Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: GrantFiled: February 27, 1998Date of Patent: September 5, 2000Assignee: Acco Brands, Inc.Inventors: William R. Murray, Jr., Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: 6112561Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. In a preferred embodiment, a locking interface for the specially designed slot includes two legs pivotably coupled together about an articulation point. The two legs each have opposing flanges on a first end and handles on a second end. The two legs define a first and a second position, with the flanges and legs adapted for insertion and removal when in the first position. The flanges engage an inner surface of the wall when the legs are in the second position. The preferred embodiment includes a retainer that is coupled to the handles of the first and second legs that retain the legs in the second position when the flanges engage the inner surface. In the preferred embodiment, the handles define an aperture and an object extends through the aperture to hold the legs in the second position. The object may be any suitable object, including a cable or shackle of a lock.Type: GrantFiled: November 8, 1996Date of Patent: September 5, 2000Assignee: ACCO Brands, Inc.Inventor: Stewart R. Carl
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Patent number: 6006557Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment typically includes an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. The spindle is then rotated 90.degree. to misalign the crossmember with the slot, thereby attaching the attachment mechanism rigidly to the external wall. A cable is secured to the housing and to an immovable object so that the equipment cannot be stolen.Type: GrantFiled: September 11, 1997Date of Patent: December 28, 1999Assignee: ACCO Brands, Inc.Inventors: Stewart R. Carl, Alice Kasahara, Arthur H. Zarnowitz, William R. Murray, Jr.
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Patent number: 6000251Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: GrantFiled: October 15, 1993Date of Patent: December 14, 1999Assignee: ACCO Brands, Inc.Inventors: William R. Murray, Jr., Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: 6000252Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: GrantFiled: June 5, 1997Date of Patent: December 14, 1999Assignee: ACCO Brands, Inc.Inventors: William R. Murray, Jr., Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: 5502989Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: GrantFiled: September 16, 1994Date of Patent: April 2, 1996Assignee: Kensington Microware LimitedInventors: William R. Murray, Jr., Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: 5493878Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: GrantFiled: September 16, 1994Date of Patent: February 27, 1996Assignee: Kensington Microware LimitedInventors: William R. Murray, Jr., Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: 5381685Abstract: An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a housing for a spindle having a first portion rotatable within the housing, a shaft extending outwardly from the housing, and a crossmember at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. An abutment mechanism also emanates from the housing, and is located on opposite sides of the shaft intermediate the housing and the crossmember. The peripheral cross-sectional dimensions of the abutment mechanism and the shaft in combination closely conform to the dimensions of the slot. The length of the shaft from the housing to the crossmember is approximately equal to the thickness of the external wall of equipment.Type: GrantFiled: April 5, 1993Date of Patent: January 17, 1995Assignee: Kensington Microware LimitedInventors: Stewart R. Carl, Arthur H. Zarnowitz, Gary L. Myers
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Patent number: 5117661Abstract: Apparatus for preventing unwanted access to a disk drive is disclosed. A housing has a surface adapted to overlie the slot, an internal piston chamber extending inwardly from one end of the housing, and a lock receiving chamber intersecting the piston chamber immediate the ends of the housing. A fixed latch member extends outwardly from one end of the housing, and is provided with a lip at its distal end. A movable latch member is attached to a piston located in the piston chamber and projects outwardly parallel to the fixed latch member. The movable latch member has a lip at its distal end extending outwardly so that the lips of the respective latch member extend away from one another. The piston is movable inwardly with respect to the housing so that the latch members can be inserted into the disk drive slot, and thereafter the piston moves outwardly so that the lips of the latch members engage the corners of the slot. A lock mechanism is located in the lock receiving chamber of the housing.Type: GrantFiled: July 31, 1991Date of Patent: June 2, 1992Assignee: Kensington Microwave LimitedInventors: Stewart R. Carl, Alice M. Kasahara, Arthur H. Zarnowitz
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Patent number: D337040Type: GrantFiled: July 26, 1991Date of Patent: July 6, 1993Assignee: Kensington Microware, Ltd.Inventors: Stewart R. Carl, Alice M. Kasahara, Arthur H. Zarnowitz
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Patent number: D337041Type: GrantFiled: July 26, 1991Date of Patent: July 6, 1993Assignee: Kensington Microware, Ltd.Inventor: Stewart R. Carl
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Patent number: D346733Type: GrantFiled: October 20, 1993Date of Patent: May 10, 1994Assignee: Kensington Microware LimitedInventors: Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: D347825Type: GrantFiled: January 25, 1993Date of Patent: June 14, 1994Assignee: Kensington Microware LimitedInventors: Arthur H. Zarnowitz, Stewart R. Carl
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Patent number: D347987Type: GrantFiled: January 24, 1992Date of Patent: June 21, 1994Assignee: Kensington Microware LimitedInventors: Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: D356297Type: GrantFiled: April 1, 1993Date of Patent: March 14, 1995Assignee: Kensington Microware LimitedInventors: Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: D360191Type: GrantFiled: April 1, 1993Date of Patent: July 11, 1995Assignee: Kensington Microware LimitedInventors: Stewart R. Carl, Arthur H. Zarnowitz
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Patent number: D374655Type: GrantFiled: October 25, 1994Date of Patent: October 15, 1996Assignee: Kensington Microware LimitedInventors: Stewart R. Carl, Arthur H. Zarnowitz