EP0952295A2 - Brutschrank und Dichtungssystem dafür - Google Patents

Brutschrank und Dichtungssystem dafür Download PDF

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Publication number
EP0952295A2
EP0952295A2 EP98115362A EP98115362A EP0952295A2 EP 0952295 A2 EP0952295 A2 EP 0952295A2 EP 98115362 A EP98115362 A EP 98115362A EP 98115362 A EP98115362 A EP 98115362A EP 0952295 A2 EP0952295 A2 EP 0952295A2
Authority
EP
European Patent Office
Prior art keywords
opening
wall
gasket
clip
shaped
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.)
Withdrawn
Application number
EP98115362A
Other languages
English (en)
French (fr)
Other versions
EP0952295A3 (de
Inventor
Mark A. Newman
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.)
Lab Line Instruments Inc
Original Assignee
Lab Line Instruments 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 Lab Line Instruments Inc filed Critical Lab Line Instruments Inc
Publication of EP0952295A2 publication Critical patent/EP0952295A2/de
Publication of EP0952295A3 publication Critical patent/EP0952295A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
    • E06B7/2307—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing
    • E06B7/2309—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing with a hollow sealing part

Definitions

  • This invention relates to storage chambers, such as controlled environmental chambers or incubators, and sealing systems therefor.
  • Gaskets for CO 2 incubators have been previously provided. These gaskets surround the opening of a storage chamber and provide a seal between the chamber and a door mounted for closing the opening to allow the chamber to maintain the proper environmental conditions, such as the proper temperature, CO 2 and humidity levels.
  • condensation sometimes builds up in the storage chamber and falls onto the gasket along the bottom portion of the opening. When the door is opened, the condensation often drops off the gasket onto the surface supporting the incubator.
  • An important feature of the invention is the provision of a sealing system which is of relatively simple and economical construction.
  • a further feature of the invention is the provision of a sealing system of the type set forth, which includes a gasket, which can easily be removed, cleaned and reinstalled.
  • a still further feature of the invention is the provision of a sealing system of the type set forth, which aids in containment of condensation.
  • Still another feature is the provisions of incubator incorporating a sealing system of the type set forth.
  • a sealing system for a housing defining a storage chamber having an opening formed in a wall structure with interior and exterior surfaces and an opening-defining edge connecting the surfaces.
  • the sealing system includes a flexible gasket having a sealing portion and an attachment portion disposed over the opening-defining edge, and a clip disposed about the attachment portion of the gasket and over the opening edge, the clip removeably maintaining the gasket on the wall.
  • incubator 10 such as a CO 2 incubator
  • the incubator 10 includes a housing 11 defining a storage chamber 12 therein for maintaining the contents thereof under certain controlled environmental conditions, such as certain humidity and CO 2 atmospheric conditions, all in a known manner.
  • the housing 11 includes a plurality of shelves 14 for holding the contents.
  • the housing 11 has a generally box-like wall structure including a front wall 16 having a bottom portion 16A, a top portion 16B and side portions 16C, 16D (FIG. 1).
  • the front wall 16 has interior and exterior surfaces 18 and 20 connected by an opening-defining edge 22 which defines a substantially rectangular opening 24 (FIGS. 1 and 5) having a center.
  • each of the front wall 16 and opening-defining edge 22 has a thickness.
  • the incubator 10 also includes a sealing system 26.
  • the sealing system 26 includes a one-piece, flexible and resilient gasket 28, which may be formed from rubber, silicone rubber, or the like, and four substantially U-shaped, flexible and resilient clips 30, which may be formed of a suitable plastic, or the like.
  • the gasket 28 has a length substantially equal to the perimeter of opening 24 and includes a substantially U-shaped attachment portion 32 having first and second substantially parallel attachment legs 34, 36 respectively having thicknesses. Attachment portion 32 also includes an end wall 38 connecting the legs 34, 36.
  • the gasket 28 also includes a substantially D-shaped, compressible, hollow sealing portion 40 which includes a sealing wall 42 connected to an arcuate-shaped portion 44.
  • the sealing portion 40 also includes a flange 46 projecting from the arcuate-shaped portion 44.
  • the arcuate-shaped portion 44 and flange 46 form a channel 48 that opens toward the center of the opening 24.
  • a channel 50 is also formed between the spaced-apart sealing wall 42 and the second attachment leg 36.
  • Each of the clips 30 includes first and second clip legs 52, 54 respectively terminating at free ends 56, 58.
  • the clips 30 are made of a flexible and resilient material, and has a normal, at-rest condition shown in solid line in FIG. 3 with the free ends 56 and 58 inclined toward each other.
  • Each of the clips 30 also has an engaged condition, as seen in FIGS. 1, 2 and 5. When a clip 30 is in its normal condition, the distance between the free ends 56, 58 of its first and second clip legs 52, 54 is less than the combined thickness of the first and second attachment portions 32, 34 of the gasket 28 and the opening edge 22.
  • the gasket 28 is removeably attached to the housing 11 as follows. As seen in FIG. 2, the attachment portion 32 is placed and disposed on the wall 16 so that the first attachment leg 34 and second attachment leg 36 respectively face the interior surface 18 and exterior surface 20 of wall 16 and the top wall 38 is disposed over opening edge 22.
  • the four clips 30 are each pushed over the end wall 38 at one of the four sides of the opening 24 causing the respective free ends 56 and 58 of a clip 30 to be spread a greater distance apart from each other and the first clip leg 52 to face attachment leg 34 and the second clip leg 54 to be disposed in channel 50 between attachment leg 36 and sealing wall 42, thereby placing the clips 30 in their respective engaged condition.
  • the resilient nature of the clips 30 causes the first and second clip legs 52, 54 to be biased toward one another and maintain the gasket 128 on the wall 16.
  • the clips 30 are simply removed from over the gasket 28 and the attachment portion 32 of the gasket 28 is removed from the wall 16 allowing the gasket 28 to be cleaned.
  • the incubator 10 also includes a transparent inner door 60 hingedly coupled to wall 16 and an outer door 62 also hingedly coupled to the wall 16.
  • transparent door 60 When, as seen in FIG. 5, transparent door 60 is closed in a known manner, the D-shaped sealing portion 40 of gasket 28 is compressed and a seal is formed between the wall 16 and door to aid in maintaining a constant environmental condition in storage chamber 12.
  • any condensation that may have formed in the storage chamber 12 in use and fallen onto the portion of the gasket 28 overlying the bottom portion 16A of the wall 16 may be contained in channel 48 of the gasket 28, thereby preventing the condensation from falling onto a user or a surface supporting the incubator 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
EP98115362A 1998-04-20 1998-08-14 Brutschrank und Dichtungssystem dafür Withdrawn EP0952295A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6262598A 1998-04-20 1998-04-20
US62625 1998-04-20

Publications (2)

Publication Number Publication Date
EP0952295A2 true EP0952295A2 (de) 1999-10-27
EP0952295A3 EP0952295A3 (de) 2001-08-01

Family

ID=22043733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115362A Withdrawn EP0952295A3 (de) 1998-04-20 1998-08-14 Brutschrank und Dichtungssystem dafür

Country Status (2)

Country Link
EP (1) EP0952295A3 (de)
CA (1) CA2245333A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830467A1 (fr) * 2001-10-08 2003-04-11 Jouan Sa Enceinte et assemblage ameliore et procede de construction correspondant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB649137A (en) * 1948-01-30 1951-01-17 Thomas John Robert Bright Improvements in draught excluding strips, beadings, mouldings and the like
GB885596A (en) * 1959-11-16 1961-12-28 Ft Products Ltd Improvements relating to fasteners
FR2332409A1 (fr) * 1975-11-21 1977-06-17 Draftex Dev Ag Perfectionnements apportes aux bandes d'etancheite
US5792427A (en) * 1996-02-09 1998-08-11 Forma Scientific, Inc. Controlled atmosphere incubator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830467A1 (fr) * 2001-10-08 2003-04-11 Jouan Sa Enceinte et assemblage ameliore et procede de construction correspondant

Also Published As

Publication number Publication date
EP0952295A3 (de) 2001-08-01
CA2245333A1 (en) 1999-10-20

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