CA2055147A1 - Method and apparatus for determining the uncovered size of an opening adapted to be covered by multiple moveable doors - Google Patents

Method and apparatus for determining the uncovered size of an opening adapted to be covered by multiple moveable doors

Info

Publication number
CA2055147A1
CA2055147A1 CA 2055147 CA2055147A CA2055147A1 CA 2055147 A1 CA2055147 A1 CA 2055147A1 CA 2055147 CA2055147 CA 2055147 CA 2055147 A CA2055147 A CA 2055147A CA 2055147 A1 CA2055147 A1 CA 2055147A1
Authority
CA
Canada
Prior art keywords
covered
determining
opening adapted
multiple moveable
sash doors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2055147
Other languages
French (fr)
Other versions
CA2055147C (en
Inventor
Osman Ahmed
Steven Arthur Bradley
Steven L. Fritsche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Industry Inc
Original Assignee
Landis and Gyr Powers Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Landis and Gyr Powers Inc filed Critical Landis and Gyr Powers Inc
Priority to CA 2055147 priority Critical patent/CA2055147C/en
Publication of CA2055147A1 publication Critical patent/CA2055147A1/en
Application granted granted Critical
Publication of CA2055147C publication Critical patent/CA2055147C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

Fume hood controller apparatus includes a computing means, together with associated memory, which can be configured fox horizontally and/or vertically moveable sash doors by inputting the necessary dimensions of the sash doors and other structural features, such as the upper lip height, frame widths and the like. The apparatus rapidly calculates the size of the uncovered area of the fume hood as a function of the position of the sash doors.
CA 2055147 1991-11-07 1991-11-07 Method and apparatus for determining the uncovered size of an opening adapted to be covered by multiple moveable doors Expired - Fee Related CA2055147C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2055147 CA2055147C (en) 1991-11-07 1991-11-07 Method and apparatus for determining the uncovered size of an opening adapted to be covered by multiple moveable doors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2055147 CA2055147C (en) 1991-11-07 1991-11-07 Method and apparatus for determining the uncovered size of an opening adapted to be covered by multiple moveable doors

Publications (2)

Publication Number Publication Date
CA2055147A1 true CA2055147A1 (en) 1993-05-08
CA2055147C CA2055147C (en) 1999-11-02

Family

ID=4148721

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2055147 Expired - Fee Related CA2055147C (en) 1991-11-07 1991-11-07 Method and apparatus for determining the uncovered size of an opening adapted to be covered by multiple moveable doors

Country Status (1)

Country Link
CA (1) CA2055147C (en)

Also Published As

Publication number Publication date
CA2055147C (en) 1999-11-02

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed