Patents by Inventor David Rosenwasser

David Rosenwasser 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).

  • Publication number: 20030209033
    Abstract: An article of jewelry having a longitudinal axis is provided with a plurality of rods extending along the longitudinal axis and a plurality of coils wound around the plurality of rods. Adjacent coils are intertwined and connected via the rods, with each rod having at least two coils wound therearound.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 13, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: 6644008
    Abstract: A chain link of hollow construction and substantially uniform thickness, for intertwining with other chain links to form a jewelry chain, has a non-annular cross-section throughout the link with the cross-section being symmetric along a centerline plane through said cross-section. The cross-sectional shape of the link preferably has on each side of the centerline plane, at least two sides that meet at a point of inflection. On each side of the centerline plane, at least one side preferably converges toward said centerline plane. A reduction in manufacturing costs and precious metal used to form the links and therefore the chain is realized by using a non-annular cross-section having such constructional qualities.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: November 11, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Publication number: 20030150204
    Abstract: A non-annular, hollow chain link is provided with a gap and is capable of being intertwined to form a jewelry rope chain. The gap faces the widest dimension of the link, and faceting surfaces are preferably disposed adjacent the gap. When compared with an annular, prior art link having a diameter that is equivalent to the widest dimension of the non-annular link, the faceting surfaces present a greater faceting surface area than the faceting surfaces of such annular, prior art link. Thus, a faceted rope chain formed from such hollow, non-annular chain links will have a greater faceting presence and appearance than an equivalent rope chain formed from annular chain links.
    Type: Application
    Filed: February 11, 2002
    Publication date: August 14, 2003
    Inventors: David Rosenwasser, Avi Rosenwasser
  • Publication number: 20030150203
    Abstract: A jewelry rope chain having links interwoven together to form a double helix configuration. Each link has a cross section with the largest transverse distance across the cross section defining a first dimension. Each link has a interior space and a gap along the periphery of the length. The widest dimension of the interior space in a direction consistent with the direction of the gap has a dimension which is less than three times the first dimension. Thus, ratios of approximately 2:1 can be achieved.
    Type: Application
    Filed: February 12, 2002
    Publication date: August 14, 2003
    Inventors: David Rosenwasser, Avi Rosenwasser
  • Publication number: 20030110756
    Abstract: Several methods of forming links are disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoured and then cut into individual, pre-contoured links. In another embodiment, the outer periphery of non-contoured links are individually contoured prior to the intertwining of such links to form actual rope chains. In another embodiment, individual links are stamped with inner and outer peripheries of different shapes. In yet another embodiment, individual links are collectively contoured, preferably after arrangement on a support such as an ice lathe or a mandril. Such contouring can be accomplished by hand, machine or the like. If such links are not already provided with a gap, then a gap can be formed into the links as part of the contouring step.
    Type: Application
    Filed: January 31, 2003
    Publication date: June 19, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Publication number: 20030106337
    Abstract: A jewelry chain section and a method of forming the same having a spiral, twisted appearance, involves the winding of a wire on a support and the controlled manipulation of such wound wire during or after removal from the support. The wound wire comprises individual spirals that are twisted relative to each other, such that the individual spirals appear in a staggered formation, with the appearance of a chain section being varied by the number of spirals that are twisted at a particular time and the extent or angular dimension of the rotation imparted to such spirals.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 12, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Publication number: 20030029156
    Abstract: A chain link of hollow construction and substantially uniform thickness, for intertwining with other chain links to form a jewelry chain, has a non-annular cross-section throughout the link with the cross-section being symmetric along a centerline plane through said cross-section. The cross-sectional shape of the link preferably has on each side of the centerline plane, at least two sides that meet at a point of inflection. On each side of the centerline plane, at least one side preferably converges toward said centerline plane. A reduction in manufacturing costs and precious metal used to form the links and therefore the chain is realized by using a non-annular cross-section having such constructional qualities.
    Type: Application
    Filed: October 7, 2002
    Publication date: February 13, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: 6484488
    Abstract: Several methods of forming links for use with the creation of rope chains is disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoured and then cut into individual, pre-contoured links. In another embodiment, the outer periphery of non-contoured links are individually contoured prior to the intertwining of such links to form actual rope chains. In another embodiment, individual links are stamped with inner and outer peripheries of different shapes. In yet another embodiment, individual links are collectively contoured, preferably after arrangement on a support such as an ice lathe or a mandril. Such contouring can be accomplished by hand, machine or the like. If such links are not already provided with a gap, then a gap can be formed into the links as part of the contouring step.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: November 26, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: 6460323
    Abstract: A chain link of hollow construction and substantially uniform thickness, for intertwining with other chain links to form a jewelry chain, has a non-annular cross-section throughout the link with the cross-section being symmetric along a centerline plane through said cross-section. The cross-sectional shape of the link preferably has on each side of the centerline plane, at least two sides that meet at a point of inflection. On each side of the centerline plane, at least one side preferably converges toward said centerline plane. A reduction in manufacturing costs and precious metal used to form the links and therefore the chain is realized by using a non-annular cross-section having such constructional qualities.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: October 8, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Publication number: 20020104307
    Abstract: Several methods of forming links for use with the creation of rope chains is disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoured and then cut into individual, pre-contoured links. In another embodiment, the outer periphery of non-contoured links are individually contoured prior to the intertwining of such links to form actual rope chains. In another embodiment, individual links are collectively contoured, preferably after arrangement on a support such as a mandril. Such contouring can be accomplished by hand, machine or the like.
    Type: Application
    Filed: March 27, 2002
    Publication date: August 8, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Publication number: 20020095930
    Abstract: Several methods of forming links for use with the creation of rope chains is disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoured and then cut into individual, pre-contoured links. In another embodiment, the outer periphery of non-contoured links are individually contoured prior to the intertwining of such links to form actual rope chains. In another embodiment, individual links are collectively contoured, preferably after arrangement on a support such as a mandril. Such contouring can be accomplished by hand, machine or the like.
    Type: Application
    Filed: March 27, 2002
    Publication date: July 25, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: 6389790
    Abstract: Several methods of forming links for use with the creation of rope chains is disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoured and then cut into individual, pre-contoured links. In another embodiment, the outer periphery of non-contoured links are individually contoured prior to the intertwining of such links to form actual rope chains. In another embodiment, individual links are stamped with inner and outer peripheries of different shapes. In yet another embodiment, individual links are collectively contoured, preferably after arrangement on a support such as an ice lathe or a mandril. Such contouring can be accomplished by hand, machine or the like. If such links are not already provided with a gap, then a gap can be formed into the links as part of the contouring step.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: May 21, 2002
    Assignee: D & W Jewelry Inc. (NY Corporation)
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Publication number: 20020056267
    Abstract: Several methods of forming links for use with the creation of rope chains is disclosed, whereby the outer peripheries of such links are contoured prior to assembly into rope chains. In one embodiment, the wire used in the formation of intertwinable links is contoured and then cut into individual, pre-contoured links. In another embodiment, the outer periphery of non-contoured links are individually contoured prior to the intertwining of such links to form actual rope chains. In another embodiment, individual links are stamped with inner and outer peripheries of different shapes. In yet another embodiment, individual links are collectively contoured, preferably after arrangement on a support such as an ice lathe or a mandril. Such contouring can be accomplished by hand, machine or the like. If such links are not already provided with a gap, then a gap can be formed into the links as part of the contouring step.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 16, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: 6311470
    Abstract: A double spiral jewelry rope chain is formed with thin-walled links which, due to reinforcement, require the use of less amounts of precious metal as compared to conventional chains. In order to reinforce the chain formed by the thin-walled links, a wire of gold or other precious metal is intertwined between the strands of the jewelry chain and permanently affixed to the chain by a fused connection or bond produced by, for example, soldering, welding, brazing and/or by mechanical crimping.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: November 6, 2001
    Assignee: D&W Jewelry, Inc.
    Inventors: David Rosenwasser, Avram Moshe Rosenwasser
  • Patent number: 6263658
    Abstract: A jewelry rope chain formed of a plurality of interconnected links. Each of the links has an exterior surface and the plurality of the links form the periphery of the chain. The exterior surface of the adjacent links of a pair of opposing groups of such links comprise a diamond cut curved surface. This forms opposing arcuate surfaces on the periphery of the chain. The exterior of the remaining opposing links intermediate of these two groups are uncut. As a result, the periphery of the chain is generally a slight oval in cross sectional configuration.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 24, 2001
    Assignee: D&W Jewelry, Inc.
    Inventors: David Rosenwasser, Avram Moshe Rosenwasser
  • Patent number: D462287
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: September 3, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: D465741
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: November 19, 2002
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: D480980
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: October 21, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: D481645
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: November 4, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser
  • Patent number: D482634
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: November 25, 2003
    Inventors: David Rosenwasser, Avraham Moshe Rosenwasser