Patents Assigned to J. O. Bernt & Associates Limited
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Patent number: 6006514Abstract: Link for chain having an extent about an aperture defines a section which is wider near the inside with the section being usually concave outward on each side. A junction link comprises a C member and a bridging member with a cross section generally similar to the link A method of assembling the bridging member to the C member involves providing two pairs of aligned apertures. In each pair a rivet like member with a head end and a free end has its free end inserted through the aligned apertures, after which a head is formed on the free end by arc welding.Type: GrantFiled: May 4, 1999Date of Patent: December 28, 1999Assignee: J.O. Bernt & Associates LimitedInventors: Barry C. Forster, Jorgen O. Bernt
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Patent number: 5934062Abstract: Link for chain having an extent about an aperture defines a section which is wider near the inside with the section being usually concave outward on each side, A junction link comprises a C member and a bridging member with a cross section generally similar to the link. A method of assembling the bridging member to the C member involves providing two pairs of aligned apertures. In each pair a rivet like member with a head end and a free end has its free end inserted through the aligned apertures, after which a head is formed on the free end by arc welding.Type: GrantFiled: August 8, 1997Date of Patent: August 10, 1999Assignee: J.O. Bernt & Associates LimitedInventors: Barry C. Forster, Jorgen O. Bernt
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Patent number: 5842338Abstract: A bridge-link and base replace a kiln hanger for chains. The base is welded to the kiln and is provided with translation surfaces to allow a bridge link to be mounted thereon. The bridge-link may be mounted with a chain link pre attached. The bridge link is mounted to receive almost all wear in use by comparison with the base. When a bridge-link is worn it may easily be removed and replaced.Type: GrantFiled: August 8, 1997Date of Patent: December 1, 1998Assignee: J. O. Bernt & Associates LimitedInventors: Barry C. Forster, Jorgen O. Bernt
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Patent number: 5558707Abstract: A core for fire doors comprises hydrated gypsum occupying about 40% to 46% of the core volume and bubbles occupying almost all the core volume which is not gypsum. The bubbles preferably comprise about 31% to 38% by volume of larger bubbles of between 1 and 4 mm and about 17% to 25% of smaller bubbles between 0.01 mm and 0.25 mm. The larger bubbles are formed using styrene spheroids.Type: GrantFiled: June 1, 1995Date of Patent: September 24, 1996Assignee: J.O. Bernt & Associates LimitedInventors: Jorgen O. Bernt, Kevin B. Langille
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Patent number: 5133179Abstract: The repair link is a C-shaped member and a junction member, the junction member having enlarged tongues with narrower roots and the C shaped member is complementary. Welding to hold the junction member in place preferably is caused to adhere to the C-shaped member rather than the junction member.Type: GrantFiled: September 30, 1991Date of Patent: July 28, 1992Assignee: J. O. Bernt & Associates LimitedInventors: Jorgen O. Bernt, Barry C. Forster
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Patent number: 5033959Abstract: A rotary kiln assembly has steel plates lining the kiln are mounted on hangers projecting through the plates and overlie an insulation layer.Type: GrantFiled: October 15, 1990Date of Patent: July 23, 1991Assignee: J. O. Bernt & Associates LimitedInventors: Jorgen O. Bernt, Barry C. Forster, Allan J. Blain
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Patent number: 4914903Abstract: A shackle of cast metal defines a threaded bore for a cast pin. The shackle is specially shaped to define a circular locus for a joined link whether said link contacts shackle body, ear or pin.Type: GrantFiled: April 26, 1989Date of Patent: April 10, 1990Assignee: J. O. Bernt & Associates LimitedInventors: Jorgen O. Bernt, Barry C. Forster
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Patent number: 4244687Abstract: A chain for use with kilns defines links, each with a flat area. The connection between the links is such that the flat areas in adjacent links tends to align with each other in the hanging attitude of the chain whereby the chain may be hung with the flat areas facing axial flow of materials in the kiln and acting as an impediment thereto. Arrays of such chains are hung from the wall of the kiln to collectively impede the flow of gas-borne particulate material.Type: GrantFiled: April 30, 1979Date of Patent: January 13, 1981Assignee: J. O. Bernt & Associates LimitedInventors: Jorgen O. Bernt, Barry C. Forster