Patents by Inventor Larry R. Lappi

Larry R. Lappi 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: 8399058
    Abstract: The present disclosure relates to a profiled masking article and method of masking a substrate to be treated or painted that provides a feathered or soft edge between painted and unpainted areas. The masking article described herein may be used as a single strip, or as multiple strips, placed side by side, wherein a strip is removed between treatments of different types. This allows successive treatment layers to completely cover previous layers, thus avoiding defects resulting from exposed layers of material. In an embodiment, the present disclosure is directed to a masking article comprising: at least one elongate body (12), said body (12) having a top surface, a bottom surface and at least two lateral surfaces, wherein at least a portion of said body comprises an adhesive material; and a generally planar top portion (14), connected to the body along at least one surface, said top portion (14) having a microstructured surface.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: March 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Eliason, Jeffrey R. Janssen, Larry R. Lappi, Larry A. Meixner, Michael J. Moszer
  • Publication number: 20080248203
    Abstract: The present disclosure relates to a profiled masking article and method of masking a substrate to be treated or painted that provides a feathered or soft edge between painted and unpainted areas. The masking article described herein may be used as a single strip, or as multiple strips, placed side by side, wherein a strip is removed between treatments of different types. This allows successive treatment layers to completely cover previous layers, thus avoiding defects resulting from exposed layers of material. In an embodiment, the present disclosure is directed to a masking article comprising: at least one elongate body (12), said body (12) having a top surface, a bottom surface and at least two lateral surfaces, wherein at least a portion of said body comprises an adhesive material; and a generally planar top portion (14), connected to the body along at least one surface, said top portion (14) having a microstructured surface.
    Type: Application
    Filed: April 17, 2006
    Publication date: October 9, 2008
    Inventors: Kevin M. Eliason, Jeffrey R. Janssen, Larry R. Lappi, Larry A. Meixner, Michael J. Moszer
  • Publication number: 20010052520
    Abstract: An induction heating apparatus and method for heating a substantially continuous first bondline defined by a length of thermally responsive bonding material positioned between a first member and a second member. The first member or second member is made of an electrically conductive material or positioned adjacent an electrically conductive material. The inductive heating apparatus includes a flexible, reshapeable cable assembly operably positionable adjacent the first member along the first bondline. The flexible, reshapeable cable assembly is capable of being manually shaped to a first shape of the first bondline, and is capable of being manually re-shaped to a second shape of a second bondline different than the first shape of the first bondline. An alternating current power supply is electrically coupled to the flexible, reshapeable cable assembly.
    Type: Application
    Filed: July 19, 2001
    Publication date: December 20, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Larry R. Lappi, Robert J. Boettcher, David G. Miller, Richard F. Miller
  • Patent number: 6288375
    Abstract: An induction heating apparatus and method for heating a substantially continuous first bondline defined by a length of thermally responsive bonding material positioned between a first member and a second member. The first member or second member is made of an electrically conductive material or positioned adjacent an electrically conductive material. The inductive heating apparatus includes a flexible, reshapeable cable assembly operably positionable adjacent the first member along the first bondline. The flexible, reshapeable cable assembly is capable of being manually shaped to a first shape of the first bondline, and is capable of being manually re-shaped to a second shape of a second bondline different than the first shape of the first bondline. An alternating current power supply is electrically coupled to the flexible, reshapeable cable assembly.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: September 11, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Larry R. Lappi, Robert J. Boettcher, David G. Miller, Richard F. Miller
  • Patent number: 5308647
    Abstract: An improved liquid spray masking composition including an effective amount of a non-volatile polyhydroxy component is provided. The preferred polyhydroxy components comprise polyglycerols, especially triglycerols or larger polyglycerols. The presence of such materials in masking compositions improves performance of the compositions with respect to inhibition of high temperature swelling, blistering or spotting of the painted surface to which it is applied.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: May 3, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Larry R. Lappi
  • Patent number: 4116676
    Abstract: 2-(Trifluoromethyl)methanesulfonanilides substituted in the para position by methylthio, methylsulfinyl or methylsulfonyl groups and horticulturally acceptable salts thereof and composition containing these compounds are useful herbicides.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: September 26, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Tomas L. Fridinger, George G. I. Moore, Larry R. Lappi
  • Patent number: 4018780
    Abstract: 4-Hydroxy[1]benzothieno[3,2-f]quinoline-2-carboxylic acids and esters thereof are prepared by the reaction of an optionally substituted 2-aminobenzothiophene with dimethyl acetylenedicarboxylate followed by ring closure. The sulfur atom of the intermediate compounds in the process can be oxidized to oxide or dioxide state, then hydrolyzed to the acids, or first hydrolyzed to the acids and then oxidized, if desired. The acids are physiologically active as anti-allergic agents in the acid form or as salts.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: April 19, 1977
    Assignee: Riker Laboratories, Inc.
    Inventors: Larry R. Lappi, Edward H. Erickson
  • Patent number: 3996277
    Abstract: 2-(Trifluoromethyl)methanesulfonanilides substituted in the para position by methylthio, methylsulfinyl or methylsulfonyl groups and horticulturally acceptable salts thereof and composition containing these compounds are useful herbicides.
    Type: Grant
    Filed: November 14, 1974
    Date of Patent: December 7, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas L. Fridinger, George G. I. Moore, Larry R. Lappi