Patents by Inventor William J. Willis

William J. Willis 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: 6063172
    Abstract: It has now been found that one or more metals selected from the group consisting of tin, lead, bismuth, indium, gallium and germanium may be deposited onto a metal surface utilizing an aqueous electroless plating bath which comprises(A) at least one bath-soluble metal salt selected from the group consisting of stannous salts, lead salts, bismuth salts, indium salts, gallium salts, and germanium salts;(B) at least one complexing agent selected from the group consisting of thiourea compounds and imidazole thiones, and(C) at least one amidine.Preferably, the aqueous plating baths also contain at least one acid, and the baths optionally may contain one or more surfactants. The incorporation of the amidine into the plating baths results in a solution exhibiting desirable plating characteristics and increased copper holding power.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: May 16, 2000
    Assignee: McGean-Rohco, Inc.
    Inventors: George S. Bokisa, William J. Willis
  • Patent number: 5554211
    Abstract: It has now been found that one or more metals selected from the group consisting of tin, lead, bismuth, indium, gallium and germanium may be deposited onto a metal surface utilizing an aqueous electroless plating solution which comprises(A) at least one solution-soluble metal salt selected from the group consisting of a stannous salt, a lead salt, a bismuth salt, an indium salt, a gallium salt and a germanium salt;(B) at least one acid selected from the group consisting of fluoboric acid, alkane sulfonic acids, alkanol sulfonic acids, and mixtures thereof;(C) a complexing agent which is an imidazole-2-thione compound of the Formula III ##STR1## wherein A and B are the same or different --RY groups wherein R is a linear, branched or cyclic hydrocarbylene group containing up to 12 carbon atoms, and Y is a hydrogen, halogen, cyano, vinyl, phenyl, or ether moiety; and(D) water. Optionally, the aqueous plating solutions may contain one or more surfactants.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: September 10, 1996
    Assignee: McGean-Rohco, Inc.
    Inventors: George S. Bokisa, William J. Willis
  • Patent number: 5072463
    Abstract: A bed which is articulated in two places capable of placing the occupant in an infinite number of positions including the standing position. The bed has a head portion and an intermediate portion both of which rotate about a shaft. A foot portion of the bed rotates about a second shaft. The bed pivots about a third shaft supported by the frame. Two power drives are provided, one for the head portion and the other for the foot and intermediate portions. A pantograph arrangement connected to the second power drive rotates the foot portion. The occupant is raised to a standing position by having the foot end of the bed touch the floor and raise the foot end of the frame off the floor.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: December 17, 1991
    Inventor: William J. Willis
  • Patent number: 4730022
    Abstract: Compositions are described which are useful particularly in improving the electrodeposition of zinc from aqueous alkaline plating baths. In one embodiment, the new composition comprises a polymeric composition prepared by the process which comprises the steps of(A) preparing an intermediate by reacting(A-1) at least one nitrogen-containing heterocyclic compound with(A-2) an epihalohydrin, glycerolhalohydrin or mixtures thereof, and(B) reacting said intermediate with at least one amidine compound to form the desired polymeric composition.Aqueous alkaline zinc electroplating baths containing the compositions of the invention with or without cyanide present, deposit a bright and lustrous zinc coating on metal over a wide range of current densities.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: March 8, 1988
    Assignee: McGean-Rohco, Inc.
    Inventor: William J. Willis
  • Patent number: 4582050
    Abstract: A therapeutic bed useful in the home and institutions for the application of traction to a patient having a stationary frame and a moveable frame. Traction is applied by supporting the patient either at a point below the chin or at the feet and tilting the moveable frame so that the weight of the patient produces the traction.
    Type: Grant
    Filed: December 4, 1984
    Date of Patent: April 15, 1986
    Inventor: William J. Willis
  • Patent number: 4582576
    Abstract: An aqueous acidic plating bath for electrodeposition of tin, lead or tin-lead alloys on a substrate is described. The plating baths are free of fluoborate and comprise (a) at least one bath-soluble metal salt selected from the group consisting of a stannous salt, a lead salt, or a mixture of stannous and lead salts, (b) at least one alkane sulfonic acid or alkanolsulfonic acid, (c) at least one nonionic, cationic or amphoteric surfactant, (d) an effective amount of at least one primary brightening agent selected from the group consisting of aromatic aldehydes, acetophenones, and carbonyl compounds having the general formulaAr--C(H).dbd.C(H)--C(O)--CH.sub.3 (III)wherein Ar is a phenyl, naphthyl, pyridyl, thiophenyl or furyl group, and (e) an effective amount of a secondary brightening agent selected from the group consisting of lower aliphatic aldehydes and substituted olefins of the formula ##STR1## wherein R.sub.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: April 15, 1986
    Assignee: McGean-Rohco, Inc.
    Inventors: Vince Opaskar, Valerie Canaris, William J. Willis
  • Patent number: 4347108
    Abstract: Aqueous acidic copper plating baths and processes for electrodepositing bright and level copper coatings are described. In addition to containing one or more bath-soluble copper salts, free acid and chloride ions, the copper plating baths of the invention contain a brightening compound and a heterocyclic nitrogen or sulfur-nitrogen compound. The brightener compounds are prepared by reacting a mixture of(a) a disulfide having the formula[RR'NCS.sub.2 ].sub.2 (Formula I)wherein R and R' are each independently hydrogen, alkyl or aryl groups,(b) a halo hydroxy sulfonic acid having the formulaX(CH.sub.2).sub.n CH(OH)CH.sub.2 SO.sub.3 M (Formula II)wherein X is a halogen, n is 1 or 2 and M is hydrogen or an alkali metal, and(c) an aliphatic aldehyde having up to 3 carbon atoms in(d) an aqueous alkaline medium.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: August 31, 1982
    Assignee: Rohco, Inc.
    Inventor: William J. Willis
  • Patent number: 4188271
    Abstract: A composition is described which provides an improvement in the electrodeposition of zinc from aqueous alkaline plating baths and particularly from alkaline plating baths containing little or no cyanide. The new composition comprises the reaction product of one or more piperazines, at least one additional nitrogen-containing compound selected from the group consisting of ammonia or aliphatic acyclic compounds containing at least one primary amine group, formaldehyde, and an epihalohydrin or a glycerol halohydrin or mixtures thereof. Aqueous, alkaline zinc plating baths containing the additive compositions of the invention deposit a bright zinc coating over a wide range of current densities.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: February 12, 1980
    Assignee: Rohco, Inc.
    Inventors: William E. Eckles, Wilfred J. Ferguson, William J. Willis
  • Patent number: 4169772
    Abstract: An aqueous acidic plating bath for the electrodeposition of a bright zinc deposit on a substrate is disclosed and comprises zinc ions and an amount, sufficient to provide a level and bright deposit, of at least one bath-soluble composition obtained by the reaction of a nitrogen-containing heterocyclic compound with formaldehyde, an epihalohydrin or glycerol halohydrin and at least one amino compound selected from the group consisting of (i) ammonia, (ii) an aliphatic amine, or (iii) an amidine. Additionally, the plating baths of the invention may contain a nitrogen-containing compound obtained by the reaction of ammonia, an aliphatic amine containing at least one primary amine group, or mixtures thereof with one or more epihalohydrins, glycerol halohydrins or mixtures thereof. Thioureas and anionic aromatic sulfonic acids or salts thereof also are contemplated as being useful in the plating baths of the invention.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: October 2, 1979
    Assignee: R. O. Hull & Company, Inc.
    Inventors: Richard K. Lowery, William J. Willis
  • Patent number: 4146441
    Abstract: A composition as described which is useful particularly in improving the electrodeposition of bright zinc from aqueous acidic plating baths. The new composition comprises a reaction product obtained by the process of preparing an intermediate composition by reacting formaldehyde in water with sulfamic acid and at least one aliphatic acyclic amine containing at least one primary amine group, and thereafter reacting said intermediate compound with at least one epihalohydrin or glycerol halohydrin or mixtures thereof. Aqueous acidic zinc plating baths containing the additive compositions of the invention and methods for depositing a bright zinc coating over a wide range of current densities also are described.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: March 27, 1979
    Assignee: R. O. Hull & Company, Inc.
    Inventor: William J. Willis
  • Patent number: 4139425
    Abstract: A composition is described which is useful particularly in improving the electrodeposition of tin, lead or tin-lead from an aqueous acidic plating bath. The new composition comprises a reaction product of an unsaturated nitrogen-containing heterocyclic compound with a mixture comprising formaldehyde and an unsaturated aliphatic aldehyde containing up to about six carbon atoms. Aqueous acidic plating baths containing the additive compositions of the invention, and methods for depositing tin, lead or tin-lead alloys from such baths as well as additive compositions for forming the baths also are described.
    Type: Grant
    Filed: April 5, 1978
    Date of Patent: February 13, 1979
    Assignee: R. O. Hull & Company, Inc.
    Inventors: William E. Eckles, William J. Willis
  • Patent number: 4135991
    Abstract: An aqueous acid plating bath for electrodeposition of tin, lead or tin-lead alloys on a substrate is described and comprises at least one metal salt selected from the group consisting of a stannous salt, a lead salt or a mixture of stannous and lead salts, and as a brightener agent, an effective amount of at least one alkoxylated amine of the formula ##STR1## wherein R is a fatty acid alkyl group containing from about 8 to about 22 carbon atoms,R.sup.1 is an alkylene radical containing up to about 5 carbon atoms,R.sup.2 and R.sup.3 are each independently an ethylene or propylene group,A is 0 or 1, andX, y and z are each independently integers from 1 to about 30, and the sum of x, y, and z is an integer of from about 2 to about 50.Methods for the electrodeposition of tin, lead, or tin-lead alloys from such baths as well as additive compositions for forming the baths also are described.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: January 23, 1979
    Assignee: R. O. Hull & Company, Inc.
    Inventors: Valerie M. Canaris, William J. Willis