Abstract: An applicator for accurately dispensing small amounts of fluids to tooth surfaces, including a handle, a nozzle which includes a reservoir for fluid and a piston member, and a lever, spring, plunger member, whereby activation of the lever forces the plunger against the piston which, in turn, forces fluid out of the reservoir through the nozzle.
Type:
Grant
Filed:
February 10, 1986
Date of Patent:
November 24, 1987
Assignee:
Johnson & Johnson Dental Products Company
Inventors:
Robert D. Holewinski, William J. Blatherwick, Leslie Hamilton, Thomas E. Wells, Sr.
Abstract: A ratchet-type dispenser for dental materials is disclosed. The ratchet is activated by a drive pawl and is prevented from returning by a detent pawl. The drive pawl and detent pawl are activated by the same lever arm.
Type:
Grant
Filed:
May 30, 1986
Date of Patent:
September 15, 1987
Assignee:
Johnson & Johnson Dental Products Company
Inventors:
William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski, Virginia A. Shen, Jeffrey Kapec, Kazuna Tanaka
Abstract: The adhesion of crystalline alumina to adhesives is enhanced by coating the surface of the alumina that is to be in contact with the adhesive, with a very thin coating of a siliceous material such as sputter coated silica.
Type:
Grant
Filed:
December 9, 1985
Date of Patent:
July 21, 1987
Assignee:
Johnson & Johnson Dental Products, Company
Inventors:
Robert D. DeLuca, Robin M. Forbes-Jones
Abstract: There is disclosed an orthodontic bracket including a base member for attaching to a tooth and a body member extending from the base member. The body member includes walls that define an archwire groove. The walls are made of single crystal alumina. Preferably, the entire bracket is made of single crystal alumina, and most preferably, single crystal alpha-alumina or sapphire.
Type:
Grant
Filed:
June 12, 1985
Date of Patent:
January 27, 1987
Assignee:
Johnson & Johnson Dental Products Company
Inventors:
Robin M. F. Jones, Robert D. DeLuca, Carlino Panzera
Abstract: Process for joining ceramic components in precise spatial relationship which comprises firing the ceramic components joined by a ceramic frit on a sagger tray having a coefficient of thermal expansion that matches that of the ceramic components.
Type:
Grant
Filed:
March 22, 1985
Date of Patent:
January 6, 1987
Assignee:
Johnson & Johnson Dental Products Company
Abstract: The adhesion of crystalline alumina to adhesives is enhanced by coating the surface of the alumina that is to be in contact with the adhesive, with a very thin coating of a siliceous material such as sputter coated silica.
Type:
Grant
Filed:
April 23, 1984
Date of Patent:
June 17, 1986
Assignee:
Johnson & Johnson Dental Products Company
Inventors:
Robert D. De Luca, Robin M. Forbes-Jones