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).

  • Patent number: 7044834
    Abstract: 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: Grant
    Filed: April 20, 2005
    Date of Patent: May 16, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 6884157
    Abstract: 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: Grant
    Filed: March 25, 2003
    Date of Patent: April 26, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Publication number: 20030159363
    Abstract: 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: Application
    Filed: March 25, 2003
    Publication date: August 28, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 6579162
    Abstract: 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: Grant
    Filed: December 15, 2000
    Date of Patent: June 17, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 6579161
    Abstract: 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: Grant
    Filed: December 6, 1996
    Date of Patent: June 17, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Publication number: 20010001088
    Abstract: 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: Application
    Filed: December 15, 2000
    Publication date: May 10, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 6197076
    Abstract: 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: Grant
    Filed: April 5, 1999
    Date of Patent: March 6, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Ehrich J. Braunschweig, Donald R. Bell
  • Patent number: 5840089
    Abstract: 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: Grant
    Filed: July 29, 1997
    Date of Patent: November 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 5725423
    Abstract: 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: Grant
    Filed: March 3, 1997
    Date of Patent: March 10, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John L. Barry, Donald R. Bell, Jason A. Chesley, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 5672186
    Abstract: 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: Grant
    Filed: March 13, 1996
    Date of Patent: September 30, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 5667540
    Abstract: 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: Grant
    Filed: March 13, 1996
    Date of Patent: September 16, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 5612295
    Abstract: 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: Grant
    Filed: March 27, 1996
    Date of Patent: March 18, 1997
    Assignee: Ethyl Corporation
    Inventors: Donald R. Bell, Rolfe J. Hartley, Andrew G. Papay
  • Patent number: 5607345
    Abstract: 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: Grant
    Filed: January 13, 1994
    Date of Patent: March 4, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John L. Barry, Donald R. Bell, Jason A. Chesley, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 5591237
    Abstract: 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: Grant
    Filed: December 26, 1995
    Date of Patent: January 7, 1997
    Assignee: Ethyl Corporation
    Inventor: Donald R. Bell
  • Patent number: 5505747
    Abstract: 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: Grant
    Filed: January 13, 1994
    Date of Patent: April 9, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jason A. Chesley, Donald R. Bell, Harold E. Rude, William F. Sheffield, David F. Slama, Alan N. Stephens
  • Patent number: 5240630
    Abstract: 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: Grant
    Filed: October 9, 1992
    Date of Patent: August 31, 1993
    Assignee: Ethyl Corporation
    Inventors: Mahmood Sabahi, Donald R. Bell
  • Patent number: 5026885
    Abstract: 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: Grant
    Filed: March 6, 1990
    Date of Patent: June 25, 1991
    Assignee: Ethyl Corporation
    Inventors: Donald R. Bell, Bruce C. Berris
  • Patent number: 4946975
    Abstract: 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: Grant
    Filed: January 12, 1990
    Date of Patent: August 7, 1990
    Assignee: Ethyl Corporation
    Inventors: Feng-Jung Wu, Bruce C. Berris, Donald R. Bell