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Class 249/154 - Having opposed complementary arcuate surfaces with terminating end wall to form semi-cylinder


Subclass of Class 249 - Static molds
Definition: Apparatus having opposed, parallel-spaced panels of arcuate
No. of patents: 24
Last issue date: 01/24/2012


NumberTitleIssue Date
8100380Igloo building block mold
An igloo building block mold comprises a shell defining a pair of generally cuboid mold portions. The mold portions are offset from one another in both an upright direction extending between the top and bottom ends of the mold portions and a lateral direction extend...
01/24/2012
6502801Apparatus and method for molding a core for use in casting hollow parts
A mold for molding a core for use in casting hollow parts includes, a lower mold portion and an upper mold portion defining therein a cavity corresponding to the outer surface of the core. The lower mold portion includes a cutout disposed along a parting ...
01/07/2003
6099764Method of lens casting without using a gasket
An apparatus and method for casting lens without using a gasket that can be used to form all powers and geometric shapes of lenses. An elastomeric strip is used to wrap around the edges of two molds to form a sleeve-like structure, which in turn cooperate...
08/08/2000
5798073Mold assembly for forming apertures in a molded body
A mold assembly includes first and second housings having generally curved surfaces inside the mold cavity. The first housing has apertures extending therethrough. The second housing may have apertures, axially aligned with the apertures of the first hous...
08/25/1998
5766500Adjustable divider assembly for use with an open-top mold for creating a countertop with a built-up edge
An adjustable divider assembly for use with an open-top mold for creating a countertop with a built-up edge, the mold being rectangular in shape with a flat planar surface, first, second and third built-up and inwardly contoured edges and a fourth open ed...
06/16/1998
5492303Formwork for surfaces varying in curvature
Formwork for surfaces varying in curvature has a face sheet adjustable with respect to its curvature, girders supporting the face sheet and applied to the girders, in spaced relationship to the face sheet, there is a boom system which is composed of indiv...
02/20/1996
5213825Plastic lens molding apparatus
A plastic lens molding apparatus. A first mold, having a concave optical surface, and a second mold, having a convex optical surface, are arranged so that the optical surfaces are opposed to each other, each of the optical surfaces having an apex. An adhe...
05/25/1993
5178887Compound fluted mold for casting prestressed concrete lamp poles
A compound fluted mold segment for casting prestressed concrete lamp poles includes three 120° circumferential sectors wherein each sector contains a mold form made of a thin gauge sheet metal in which are locaed flutes formed by a press-brake operation....
01/12/1993
4909972Method and apparatus for making a solid foamed tire core
A method of making a solid core locatable between a wheel rim and a tire fitted to the rim, includes introducing a foamable composition into a mould cavity having a substantially inflexible mould surface. The cavity is suitably shaped so that a core locat...
03/20/1990
4889678Casting a plastic windshield
An elongate packing is sandwiched between two sheet-like mold members in an encircling manner to define a mold cavity therebetween, then a thermosetting plastic material is poured into the mold cavity, and the thermosetting plastic material is heated and ...
12/26/1989
4827838Decorative fish mold and method of using same
A decorative fish head mold for use as a replacement for a fish's head when serving and/or cooking a fish includes a hollow elongate body defining an interior compartment. The body has a forward or distal end configured to the appearance of a fish head, a...
05/09/1989
4671917Method and apparatus for cooling molten oxides
Molten oxide of grinding material, refractory material, etc., being poured into a circular casting space formed between coaxially arranged inner and outer cylinders and cooled by the water contained in the inner cylinder. Thus, the molten oxide is cooled ...
06/09/1987
4522768Casting gasket assembly and method for casting lenses therefrom
A gasket assembly for casting optical lenses includes a first gasket member having a cylindrical opening therethrough and an annular flange extending radially inwardly in the cylindrical opening. One surface of the flange is adapted to receive a casting l...
06/11/1985
4437640Bracing unit for concrete formwork
A bracing unit to secure a formwork panel to falsework or to a previously poured concrete structure includes a pressurized fluid inflatable and expandable hose and a rigid abutment member for supporting the hose and holding it against the outside surface ...
03/20/1984
4371325Apparatus for forming structures in the form of segments of a sphere
A method and apparatus for forming a structure having an inner surface in the form of at least one segment of a sphere. An inner support is mounted at a fixed point from which a radius can be struck to define the inner surface of the structure. An elongat...
02/01/1983
4222547Ice tray
An ice tray having specially shaped cavities for allowing individual ice pieces to be removed on a one-at-a-time basis in which each individual cavity has a uniformly curved bottom wall of part-circular configuration preferably part-cylindrical and a pair...
09/16/1980
4201360Injection molding of embossed articles
An embossed article such as a plastic bowl is injection molded between the molding surfaces of an unidirectional mold. The outer molding surface is inclined outwardly from bottom to top and is provided with an engraved area in which the boss is formed. Th...
05/06/1980
4181287Molding apparatus for rigid foam pipe insulation
Apparatus for molding rigid foam components of semicircular cross section suitable for insulating pipes and the like. A female molding component is formed of sheet metal material supported by a plurality of spaced, rigid crossmembers. This female componen...
01/01/1980
4159817Mold for manufacturing distillation column packing
A distillation column packing in the form of a spherical body constructed by assembling a pair of hemispherical members of the same shape and structure. Each of the hemispherical members includes a suitable number of cutout openings formed in the hemisphe...
07/03/1979
4154423Apparatus for the construction of a domed structure such as an igloo
Two molds, each comprising an open top container having side walls, end walls, and a bottom, are provided for forming blocks of snow or ice which are used to form a complete domed structure such as an igloo. The configuration of one mold is such that bloc...
05/15/1979
4136849Apparatus for manufacturing concrete building sections
This invention relates to an apparatus for producing a plurality of large curved concrete building sections of uniform thickness. The apparatus includes a number of forms having a concrete core and a steel casing and being of a generally crescent shaped c...
01/30/1979
4113810Distillation column packing
A distillation column packing in the form of a spherical body constructed by assembling a pair of hemispherical members of the same shape and structure. Each of the hemispherical members includes a suitable number of cutout openings formed in the hemisphe...
09/12/1978
4087072Form means for fabricating pre-cast structural panels
A method and associated form assembly for forming pre-cast structural panels includes the steps of and associated apparatus for constructing an open-top disassemblable form box, reinforcing the form box with a collar assembly affixed around the form box f...
05/02/1978
4085919Lens-casting cell
A cell for casting resinous ophthalmic lenses including an annular gasket of resilient material and a pair of meniscus glass mold halves between which a lens may be cast. The mold halves are loaded into one side of the gasket annulus, one fully entered an...
04/25/1978
 
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