Patents by Inventor Bevan Gordon Steffensen

Bevan Gordon Steffensen 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).

  • Measuring staff
    Patent number: 8875408
    Abstract: A measuring staff (10) has a upper section (11) including a first elongated member (12) which can carry in a fixed position therealong a laser detector of a laser leveling system or a sighting marker of an optical measuring system, and a second elongated member (13) telescopically extendable and retractable relative to the first member (12), a graduated scale (18) on the first member (13) and a pointer (17) on the second member which indicates the extension or retraction of the second member (13) relative to the first member (12), a spring (20) for urging the second member (13) outwardly from the first member (11), the second member (13) being selectively lockable to the first member, and an extension section (14,15) at the lower end of the upper section and extendable therefrom.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: November 4, 2014
    Assignee: Steffco Pty Ltd
    Inventor: Bevan Gordon Steffensen
  • Measuring Staff
    Publication number: 20130133214
    Abstract: A measuring staff (10) has a upper section (11) including a first elongated member (12) which can carry in a fixed position therealong a laser detector of a laser leveling system or a sighting marker of an optical measuring system, and a second elongated member (13) telescopically extendable and retractable relative to the first member (12), a graduated scale (18) on the first member (13) and a pointer (17) on the second member which indicates the extension or retraction of the second member (13) relative to the first member (12), a spring (20) for urging the second member (13) outwardly from the first member (11), the second member (13) being selectively lockable to the first member, and an extension section (14,15) at the lower end of the upper section and extendable therefrom.
    Type: Application
    Filed: May 29, 2012
    Publication date: May 30, 2013
    Applicant: STEFFCO PTY LTD
    Inventor: Bevan Gordon Steffensen
  • Measuring staff
    Patent number: 8201340
    Abstract: A measuring staff (10) having a upper section (11) comprising a first elongated member (12) which can carry in a fixed position therealong a laser detector of a laser levelling system or a sighting marker of an optical measuring system, and a second elongated member (13) telescopically extendable and retractable relative to the first member (12), a graduated scale (18) on the first member (13) and a pointer (17) on the second member which indicates the extension or retraction of the second member (13) relative to the first member (12), a spring (20) for urging the second member (13) outwardly from the first member (11), the second member (13) being selectively lockable to the first member, and an extension section (14,15) at the lower end of the upper section and extendable therefrom.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: June 19, 2012
    Assignee: Steffco Pty Ltd
    Inventor: Bevan Gordon Steffensen
  • Measuring Staff
    Publication number: 20110289788
    Abstract: A measuring staff (10) having a upper section (11) comprising a first elongated member (12) which can carry in a fixed position therealong a laser detector of a laser levelling system or a sighting marker of an optical measuring system, and a second elongated member (13) telescopically extendable and retractable relative to the first member (12), a graduated scale (18) on the first member (13) and a pointer (17) on the second member which indicates the extension or retraction of the second member (13) relative to the first member (12), a spring (20) for urging the second member (13) outwardly from the first member (11), the second member (13) being selectively lockable to the first member, and an extension section (14,15) at the lower end of the upper section and extendable therefrom.
    Type: Application
    Filed: July 30, 2008
    Publication date: December 1, 2011
    Inventor: Bevan Gordon Steffensen