PORTABLE VENTILATION CURTAIN FRAME

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

13186893

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A support for an air ventilation control curtain includes a foldable support rod comprising a plurality of rigid hollow rod sections that are movable with respect to each other, a coupling for joining an axial end of one of the rod sections to an axial end of another one of the rod sections, an attachment device slidably mounted on the support rod so as to be movable along a length of the support rod, the attachment device adapted for engaging with a roof plate of a mine roof, and a curtain hanger disposed on the support rod for hanging an air ventilation control curtain from the support rod.

First Claim

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Patent Owner(s)

Patent OwnerAddress
HEINTZMANN CORPORATION147 CHAMPION STREET CEDAR BLUFF VA 24609

International Classification(s)

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  • 2011 Application Filing Year
  • B23P Class
  • 3713 Applications Filed
  • 656 Patents Issued To-Date
  • 17.67 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2011201220132014201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HOWERY, Rodney Cedar Bluff, US 3 6

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Patent Citation Ranking

  • 1 Citation Count
  • B23P Class
  • 12.40 % this patent is cited more than
  • 13 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges6135360113111101 - 1011 - 2021 - 3031 - 4041 - 5061 - 7091 - 100100 +0100200300255075125150175225250275325350375

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