Patents by Inventor Donald R. Bell
Donald R. Bell 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: 7044834Abstract: An abrasive sheet member is disclosed, including a substrate having first and second major surfaces, an abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface.Type: GrantFiled: April 20, 2005Date of Patent: May 16, 2006Assignee: 3M Innovative Properties CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 6884157Abstract: An abrasive sheet member is disclosed, including a substrate having first and second major surfaces, an abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface.Type: GrantFiled: March 25, 2003Date of Patent: April 26, 2005Assignee: 3M Innovative Properties CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Publication number: 20030159363Abstract: An abrasive sheet member is disclosed, including a substrate having first and second major surfaces, an abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface.Type: ApplicationFiled: March 25, 2003Publication date: August 28, 2003Applicant: 3M Innovative Properties CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 6579162Abstract: An abrasive sheet member is disclosed, including a substrate having first and second major surfaces, an abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface.Type: GrantFiled: December 15, 2000Date of Patent: June 17, 2003Assignee: 3M Innovative Properties CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 6579161Abstract: An abrasive sheet member is disclosed, including a substrate having first and second major surfaces, an abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface.Type: GrantFiled: December 6, 1996Date of Patent: June 17, 2003Assignee: 3M Innovative Properties CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Publication number: 20010001088Abstract: An abrasive sheet member is disclosed, including a substrate having first and second major surfaces, an abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface.Type: ApplicationFiled: December 15, 2000Publication date: May 10, 2001Applicant: 3M Innovative Properties CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 6197076Abstract: The invention provides a substantially flat coated abrasive article having a fabric-reinforced backing which may include engaging elements such as hooks for releasable attachment to the surface of an abrading apparatus and a method of making the article. The invention also provides an abrading apparatus which includes a back-up pad having releasably attached thereto the abrasive article. The article comprises a substantially flat sheet-like substrate comprised of thermoplastic material and a porous fibrous reinforcing element contained within the substrate and an abrasive layer disposed on a surface of the substrate. The opposite surface of the substrate may include the engaging elements. The article is made by deploying the fabric on a surface, depositing molten thermoplastic polymer over the fabric, removing the substrate from the surface and applying the abrasive layer to one surface of the substrate.Type: GrantFiled: April 5, 1999Date of Patent: March 6, 2001Assignee: 3M Innovative Properties CompanyInventors: Ehrich J. Braunschweig, Donald R. Bell
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Patent number: 5840089Abstract: A method for making an abrasive article is disclosed, including the steps of providing a substrate having abrasive means on one surface, and providing a plurality of hooking stems on the opposite surface thereof. Several illustrative variations of the inventive method are disclosed.Type: GrantFiled: July 29, 1997Date of Patent: November 24, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 5725423Abstract: A back-up pad is provided for supporting an abrasive article during abrading. The back-up pad includes a support portion, such as a polymeric backing, and an engaging portion, such as a loop material, for engaging hooking stems projecting from the abrasive article.Type: GrantFiled: March 3, 1997Date of Patent: March 10, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: John L. Barry, Donald R. Bell, Jason A. Chesley, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 5672186Abstract: A method for making an abrasive article is disclosed, including the steps of providing a substrate having abrasive means on one surface, and providing a plurality of hooking stems on the opposite surface thereof. Several illustrative variations of the inventive method are disclosed.Type: GrantFiled: March 13, 1996Date of Patent: September 30, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 5667540Abstract: A method for making an abrasive article is disclosed, including the steps of providing a substrate having abrasive means on one surface, and providing a plurality of hooking stems on the opposite surface thereof. Several illustrative variations of the inventive method are disclosed.Type: GrantFiled: March 13, 1996Date of Patent: September 16, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 5612295Abstract: Multifunctional additives having a variety of advantageous properties are described. They are formed by a process which comprises heating concurrently or in any sequence a) an oil-soluble ashless dispersant containing basic nitrogen with b) an alkoxylated alcohol of at least 8 carbon atoms c) a borating agent and optionally d) an inorganic oxyacid or anhydride of phosphorous. The reactants are in proportions on an active ingredient basis of about 0.03 to about 0.35 part by weight of b) per part by weight of a), and about 0.005 to about 0.06 part by weight of boron as c) per part by weight of a). The reaction temperature can range from about 50.degree. to about 150.degree. C. Water and/or solids present in the resultant mixture can be removed. Preferably, the optional phosphorous component is used in the formation of these additives. This phosphorous component can be an inorganic oxyacid or anhydride of phosphorous.Type: GrantFiled: March 27, 1996Date of Patent: March 18, 1997Assignee: Ethyl CorporationInventors: Donald R. Bell, Rolfe J. Hartley, Andrew G. Papay
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Patent number: 5607345Abstract: A back-up pad is provided for supporting an abrasive article during abrading. The back-up pad includes a support portion, such as a polymeric backing, and an engaging portion, such as a loop material, for engaging hooking stems projecting from the abrasive article.Type: GrantFiled: January 13, 1994Date of Patent: March 4, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: John L. Barry, Donald R. Bell, Jason A. Chesley, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 5591237Abstract: A fuel additive concentrate package comprising a detergent/dispersant, an organic nitrate combustion improver, and a corrosion inhibitor comprising dimer and/or trimer acid is provided enhanced shelf life stability by treating the concentrate with a shelf life stability amount, for example 1,500 and 10,000 ppm, respectively of acid selected from the group consisting of nitric acid/hydrochloric acid.Type: GrantFiled: December 26, 1995Date of Patent: January 7, 1997Assignee: Ethyl CorporationInventor: Donald R. Bell
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Patent number: 5505747Abstract: A method for making an abrasive article is disclosed, including the steps of providing a substrate having abrasive means on one surface, and providing a plurality of hooking stems on the opposite surface thereof. Several illustrative variations of the inventive method are disclosed.Type: GrantFiled: January 13, 1994Date of Patent: April 9, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
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Patent number: 5240630Abstract: A refrigeration lubricant suitable for use with R-134a-type refrigerants comprises at least one dialkanolamine diester-amide oil corresponding to one of the formulas: ##STR1## in which formulas R is a hydrocarbylene group containing 1-10 carbons; n represents zero or one; each R' is independently selected from alkylene groups containing 1-10 carbons; R" is hydrogen or a hydrocarbyl group containing 1-10 carbons; and each G, when not linked with another G, is independently selected from hydrocarbyl groups containing 1-10 carbons or, when linked with another G, is a hydrocarbylene group which, together with the colinked G, forms a hydrocarbylene group containing 1-10 carbons.Type: GrantFiled: October 9, 1992Date of Patent: August 31, 1993Assignee: Ethyl CorporationInventors: Mahmood Sabahi, Donald R. Bell
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Patent number: 5026885Abstract: Transition metal cyclopentadienyl carbonyl compounds of the formula:[R.sub.x C.sub.p M(CO).sub.y ].sub.nwherein R is hydrocarbyl, C.sub.p is cyclopentadienyl, M is a transition metal, x is 0 or an integer from 1 to 5, y is an interger from 1 to 7, provided that when x is 2 to 5, R can represent two or more different hydrocarbyl groups and any two R groups can together form a fused ring with the cyclopentadienyl moiety, and n is 1 or 2,are prepared in one step by carbonylating a mixture of (i) a transition metal salt of an organic carboxylic acid a .beta.-diketone, or a .beta.-keto ester (ii) a cyclopentadiene compound (iii) and a metal alkyl reducing agent.Type: GrantFiled: March 6, 1990Date of Patent: June 25, 1991Assignee: Ethyl CorporationInventors: Donald R. Bell, Bruce C. Berris
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Patent number: 4946975Abstract: Cyclopentadienyl manganese tricarbonyl compounds are made by reacting a mixture of 0.25-0.55 moles of manganese acetate and 0.45-0.55 moles of a bis-cyclopentadienyl manganese compound with about 0.5-2.1 moles of an alkyl aluminum compound (e.g. triethyl aluminum) in the presence of about 0.75-1.25 moles of an ether per mole of said alkyl aluminum compound and reacting the mixture with carbon monoxide at about 65.degree.-175.degree. C. and 300-1500 psig.Type: GrantFiled: January 12, 1990Date of Patent: August 7, 1990Assignee: Ethyl CorporationInventors: Feng-Jung Wu, Bruce C. Berris, Donald R. Bell