Patents by Inventor Mark L. Silberberg

Mark L. Silberberg 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: 10976159
    Abstract: A specially designed bubble type level usable to verify that an angle made in a tubular structure for example, electrical conduit, is level. The apparatus is particularly useful during manual bending of electrical conduit and similar field-modified tubular structures. The apparatus allows for quick and efficient magnetic coupling to metallic conduit, without the need to turn a thumbwheel or screw. In addition, the apparatus of the present disclosure comprises a compact physical size, allowing the device to be operated with one hand and to easily fit into a user's pocket.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: April 13, 2021
    Inventor: Mark L. Silberberg
  • Patent number: 10969213
    Abstract: A specially designed bubble level having an articulating portion that may be used to verify that an angle made in a tubular structure for example, electrical conduit, is level. The level apparatus of the present disclosure may also be used to verify the angular displacement of the tubular structure about a bend, using a bubble level as reference. The apparatus is particularly useful during manual bending of electrical conduit and similar field-modified tubular structures as the apparatus provides a convenient and readily-discernible indication when a tubular structure that is being bent has been brought to a predetermined bend angle.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 6, 2021
    Inventor: Mark L. Silberberg
  • Patent number: 9551574
    Abstract: A spirit type level that may be used to plumb any vertical pole or post, may be used to horizontally set an object and may also be used to quickly and easily set a pipe at a selected slope of between 0 and 3 percent. The spirit type level of the invention includes a plurality of differently oriented spirit vials that are secured within the level body in a manner such that, if any one of the spirit vials become broken, or otherwise damaged, it can be easily replaced and the level need not be discarded. The spirit type level of the invention can be quickly and easily removably attached to the object to be leveled thereby freeing the hands of the user to position the object.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 24, 2017
    Inventor: Mark L. Silberberg
  • Patent number: 9360315
    Abstract: A bubble type level for determining the orientation of a structure that includes first and second differently oriented bubble vials that are secured within the level body in a manner such that if either of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The bubble type level of the invention also includes a novel thumb screw type connector mechanism that enables the level to be removably interconnected with the structures to be leveled, such as conduit. The level further includes a plurality of longitudinally spaced magnets that are connected to various surfaces of the level and a bulls-eye level that is mounted on the top surface of the level body.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: June 7, 2016
    Inventor: Mark L. Silberberg
  • Publication number: 20160109234
    Abstract: A spirit type level that may be used to plumb any vertical pole or post, may be used to horizontally set an object and may also be used to quickly and easily set a pipe at a selected slope of between 0 and 3 percent. The spirit type level of the invention includes a plurality of differently oriented spirit vials that are secured within the level body in a manner such that, if any one of the spirit vials become broken, or otherwise damaged, it can be easily replaced and the level need not be discarded. The spirit type level of the invention can be quickly and easily removably attached to the object to be leveled thereby freeing the hands of the user to position the object.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 21, 2016
    Inventor: Mark L. Silberberg
  • Patent number: 9243907
    Abstract: A bubble type level for determining the orientation of a structure that includes first and second differently oriented bubble vials that are secured within the level body in a manner such that if either of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The bubble type level of the invention also includes a novel connector mechanism that enables the level to be removably interconnected with the structure to be leveled. The level further includes a plurality of longitudinally spaced magnets that are connected to various surfaces of the level and a bulls-eye level that is mounted on the top surface of the level body.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: January 26, 2016
    Inventor: Mark L Silberberg
  • Patent number: 9234751
    Abstract: A bubble type level for determining the orientation of a structure, such as an elongate pipe, that includes several differently oriented bubble vials that are secured within the level body in a manner such that if the bubble vials become broken or otherwise damaged, they can be easily replaced and the level need not be discarded. The bubble type level of the invention also includes a body portion having top and bottom rails that are chamfered in a manner to automatically align the level with the longitudinal axis of the pipe when the level is connected to the side of the pipe. The level further includes a plurality of longitudinally spaced magnets that are connected to the bottom rail of the level and can be used to releasably interconnect the level with a length of ferrous pipe.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: January 12, 2016
    Inventor: Mark L Silberberg
  • Publication number: 20150308820
    Abstract: A bubble type level for determining the orientation of a structure that includes first and second differently oriented bubble vials that are secured within the level body in a manner such that if either of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The bubble type level of the invention also includes a novel connector mechanism that enables the level to be removably interconnected with the structures to be leveled, such as conduit. The level further includes a plurality of longitudinally spaced magnets that are connected to the bottom surface of the level body and a bulls-eye level that is mounted on the top surface of the level body.
    Type: Application
    Filed: May 4, 2015
    Publication date: October 29, 2015
    Inventor: Mark L. Silberberg
  • Patent number: 9151606
    Abstract: A post level for determining the orientation of a structure that includes a pair of bubble vials that are secured within the level body in a manner such that, if either one of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The body of the post level of the invention includes an upper portion, a lower portion having a first side having a slot, an intermediate portion and a rear surface having an outwardly extending locating shoulder for engaging the structure to be oriented. The post level also includes a bulls-eye level that is mounted on the intermediate portion of the level body and an elastomeric connector cord that is receivable within the slot of the first side of the body which enables the level to be removably secured to the structure being oriented. Additionally, the level includes a plurality of magnets that are connected to the level body for engagement with the structure to be oriented.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: October 6, 2015
    Inventor: Mark L. Silberberg
  • Publication number: 20150160008
    Abstract: A post level for determining the orientation of a structure that includes a pair of bubble vials that are secured within the level body in a manner such that, if either one of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The body of the post level of the invention includes an upper portion, a lower portion having a first side having a slot, an intermediate portion and a rear surface having an outwardly extending locating shoulder for engaging the structure to be oriented. The post level also includes a bulls-eye level that is mounted on the intermediate portion of the level body and an elastomeric connector cord that is receivable within the slot of the first side of the body which enables the level to be removably secured to the structure being oriented. Additionally, the level includes a plurality of magnets that are connected to the level body for engagement with the structure to be oriented.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 11, 2015
    Inventor: Mark L. Silberberg
  • Patent number: 9021710
    Abstract: A bubble type level for determining the orientation of a structure that includes a plurality of differently oriented bubble vials that are secured within the level body in a manner such that, if any one of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The bubble type level of the invention also includes a novel connector mechanism that enables the level to be removably interconnected with the structure to be leveled. The level further includes a plurality of longitudinally spaced magnets that are connected to the bottom surface of the level and a bulls-eye level that is mounted on the top surface of the level body.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: May 5, 2015
    Inventor: Mark L. Silberberg
  • Publication number: 20150113819
    Abstract: A level for determining the orientation of a structure that includes a plurality of bubble vials that are secured within the level body in a manner such that, if any one of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The body of the level of the invention includes an upper surface having a pair of viewing openings for viewing certain of the bubble vials and a lower surface having a pair of viewing openings for viewing certain of the bubble vials. The level also includes a bulls-eye level that is mounted on the upper surface of the level body and a plurality of magnets that are mounted on the lower surface of the level body for engagement with the structure to be oriented.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Inventor: Mark L. Silberberg
  • Publication number: 20150096182
    Abstract: A specially designed welder's work piece positioning and leveling tool that includes a plurality of strategically oriented work piece positioning surfaces provided on the tool body for holding and correctly positioning work pieces to be welded together. The tool also includes a plurality of differently oriented bubble vials that are secured within the tool body in a manner such that, if any one of the bubble vials become broken, or otherwise damaged, it can be easily replaced and the level need not be discarded.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 9, 2015
    Inventor: Mark L. Silberberg
  • Patent number: D722512
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: February 17, 2015
    Inventor: Mark L. Silberberg
  • Patent number: D722513
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: February 17, 2015
    Inventor: Mark L. Silberberg
  • Patent number: D722897
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: February 24, 2015
    Inventor: Mark L. Silberberg
  • Patent number: D730206
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 26, 2015
    Inventor: Mark L. Silberberg
  • Patent number: D902755
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: November 24, 2020
    Inventor: Mark L. Silberberg
  • Patent number: D913131
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: March 16, 2021
    Inventor: Mark L. Silberberg
  • Patent number: D924082
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: July 6, 2021
    Inventor: Mark L. Silberberg