Patents by Inventor Joseph Aliotta
Joseph Aliotta 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: 4755270Abstract: A method of processing waste solutions containing metal salts or complex involves applying ultra-sonic vibrations to a container in which the solution is placed and treating the solution or the generated misting therefrom to insure that the metallic ions remain behind and then finally exhausting the vapor through an activated charcoal filter to remove any organic contaminants and insure that the discharge is environmentally safe.Type: GrantFiled: April 17, 1987Date of Patent: July 5, 1988Inventor: Joseph Aliotta
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Patent number: 4235631Abstract: A corrosion-resistant dental alloy shows improved handling characteristics during the filling of a dental cavity with an amalgam of the alloy. The alloy particles comprise a mixture of silver, tin and copper particles having a mean particle size of between about 20 and 26.5 microns, and further having a particle size distribution such that substantially all of the particles fall within a particle size range of from about 10 to 52 microns. The particles have a surface area ranging between about 0.22 m.sup.2 /gm and 0.31 m.sup.2 /gm. The alloy, after amalgamation with mercury, retains a corrosion resistance comparable to that of spherical particles having substantially the same composition and having a surface area of about 0.21 m.sup.2 /gm, while retaining handling characteristics comparable to those of flake-like particles also having substantially the same composition and having a surface area of at least about 0.33 m.sup.2 /gm.Type: GrantFiled: August 24, 1978Date of Patent: November 25, 1980Assignee: Engelhard Minerals & Chemicals CorporationInventors: Joseph Aliotta, Louis F. Alcuri, Jr.
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Patent number: 4234339Abstract: A corrosion-resistant dental alloy is disclosed which has improved handling characteristics during the filling of a dental cavity. The alloy is a substantially uniform blend of three types of particles having the same chemical components, but differing in morphology and, optionally, in proportions of components. One type of particle is spherical or spheroidal in form. The second type of particle is a randomly-shaped microcrystalline form. The third type of particle is a flake-like particle. Handling characteristics of an amalgam prepared from such three particles can be adjusted to suit the requirements of the user by varying the relative proportions of the three types of particles while still retaining the corrosion resistance of the particles.Type: GrantFiled: August 24, 1978Date of Patent: November 18, 1980Assignee: Engelhard Minerals & Chemicals CorporationInventors: Joseph Aliotta, Louis F. Alcuri
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Patent number: 4226622Abstract: A corrosion-resistant dental alloy is disclosed which has improved handling characteristics during the filling of a dental cavity. The alloy is a substantially uniform blend of two types of particles having the same chemical components, but differing in morphology and, optionally, in proportions of components. One type of particle is spherical or spheroidal in form and the second type of particle is a randomly-shaped microcrystalline form. Handling characteristics of an amalgam prepared from such alloys can be adjusted to suit the requirements of the user by varying the relative proportions of the two types of particles while still retaining the corrosion resistance of the particles.Type: GrantFiled: August 24, 1978Date of Patent: October 7, 1980Assignee: Engelhard Minerals & Chemicals CorporationInventors: Joseph Aliotta, Louis F. Alcuri, Jr.
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Patent number: 4139030Abstract: A device for dispensing ingredients, such as the ingredients for a dental amalgam, has a handle portion and a head portion formed of mating parts with the handle angulated to the head and formed for convenient gripping by the user's hand. A slide mounted in the head slides laterally when pushed by the user's thumb to transport measured ingredients to a common aperture for delivery into a container. The container, when put in place, releases a latch that holds the slide normally in measuring position and prevents transport of the ingredients unless the container is in position to catch them.Adjustment of a measuring chamber for liquid mercury, to accurately proportion it, is by a valve having an end projecting, more or less, into a chamber, so as to vary the volume of the chamber. The position of the valve is controlled by a rectilinearly movable cam whose position may be fixed by a lock nut which normally is inaccessible in a recess in the head portion.Type: GrantFiled: January 17, 1977Date of Patent: February 13, 1979Assignee: Engelhard Minerals & Chemicals CorporationInventors: Manfred F. Schroeder, Joseph G. Biondo, Joseph Aliotta
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Patent number: 3997329Abstract: An improved dental composition comprises a uniform admixture in specified proportions of two powdered alloys of specified structure and composition, which when amalgamated with mercury produces a corrosion-resistant dental amalgam having enhanced mechanical properties and handling characteristics.Type: GrantFiled: December 29, 1975Date of Patent: December 14, 1976Assignee: Engelhard Minerals & Chemicals CorporationInventors: Joseph Aliotta, Louis F. Alcuri
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Patent number: 3997327Abstract: A novel dental composition comprises an admixture of two forms of a powdered alloy in specified proportions, i.e., a major proportion in the form of relatively smooth spheroidal particles, e.g., spheres, and a minor proportion in the form of relatively rough, irregularly shaped particles, e.g., flakes. The resulting dental composition requires less mercury for amalgamation and exhibits enhanced physical properties and handling characteristics.Type: GrantFiled: December 29, 1975Date of Patent: December 14, 1976Assignee: Engelhard Minerals & Chemicals CorporationInventors: Albert Tolliver, Joseph Aliotta, Louis F. Alcuri
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Patent number: 3997330Abstract: An improved dental composition comprises an admixture in specified proportions of two powdered alloys of specified composition, one in the form of spheres, the other in the form of irregularly-shaped particles such as flakes. When the admixture is amalgamated with mercury, a corrosion-resistant dental amalgam having enhanced mechanical properties and handling characteristics is produced.Type: GrantFiled: December 29, 1975Date of Patent: December 14, 1976Assignee: Engelhard Minerals & Chemicals CorporationInventors: Joseph Aliotta, Louis F. Alcuri