US3807058A - Sealing arrangement for enclosed chamber - Google Patents

Sealing arrangement for enclosed chamber Download PDF

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Publication number
US3807058A
US3807058A US00316670A US31667072A US3807058A US 3807058 A US3807058 A US 3807058A US 00316670 A US00316670 A US 00316670A US 31667072 A US31667072 A US 31667072A US 3807058 A US3807058 A US 3807058A
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US
United States
Prior art keywords
housing
web
film
chamber
travel
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.)
Expired - Lifetime
Application number
US00316670A
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English (en)
Inventor
R Seminski
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.)
R Q O HOLDING CO Inc
Original Assignee
GAF Corp
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 GAF Corp filed Critical GAF Corp
Priority to US00316670A priority Critical patent/US3807058A/en
Priority to CA183,986A priority patent/CA989896A/en
Priority to GB4962373A priority patent/GB1444401A/en
Priority to JP48131172A priority patent/JPS4991447A/ja
Priority to DE2362625A priority patent/DE2362625B2/de
Priority to FR7345212A priority patent/FR2211860A5/fr
Application granted granted Critical
Publication of US3807058A publication Critical patent/US3807058A/en
Priority to JP1978054076U priority patent/JPS53151921U/ja
Assigned to R Q O HOLDING COMPANY INC reassignment R Q O HOLDING COMPANY INC ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GAF CORPORATION
Assigned to CONGRESS FINANCIAL CORPORATION, A CA CORP. reassignment CONGRESS FINANCIAL CORPORATION, A CA CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: R.Q.O. HOLDING COMPANY, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D7/00—Gas processing apparatus
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor

Definitions

  • the present invention is directed to a sealing means for positively sealing an environmental chamber in a manner enabling a web of material travelling therethrough, to be exposed to two or more noncommunicable atmospheric conditions. More particularly, the present invention is directed to a dynamic clearance seal employed in the transference of material through a barrier or separating wall, which barrier or separating wall seaparates two or more atmospheric conditions from one another.
  • the present invention is directed to a seal arrangement which is designed to confine a gaseous environment within a predetermined zone or section of a chamber where a web of material, such as film, must enter or exit.
  • An obvious adjunct to the present invention is an arrangement for minimizing any leakage through the chamber wall such material passes.
  • a most common approach in sealing off chambers included a seal in the form of a slot disposed in the chamber wall.
  • the slot had to be relatively large to prevent the film from touching the chamber wall in order to minimize friction or scratching of such film.
  • a high gas leakage rate resulted and the system became less efficient as such leakage continued.
  • lf friction and scratching were to be tolerated, then such slots were lined with a rubber or other suitable material. The lined material caused a wiping action.
  • the resultant lower gas flow rates which took place adversely affected the entire operation.
  • Seals presently employed in systems where such environmental chambers are of particular utility are, for example, employed in Diazo film developing chambers containing ammonia, air and water vapor.
  • the normal operating temperature for such a chamber is about 150 F although operation may occur over the range of from F to 200 F.
  • the pressure differential between the atmosphere of the room and the chamber is about 0.02 inches of water.
  • a principal feature of the present invention includes an environmental apparatus for a web of material requiring treatment with at least two non-contaminated atmospheres having integral sealed wall barriers, permitting such web material to travel into and out of housing without atmospheric leakage including: a housing; roller means disposed integral with respect to said housing proximate said points of entry and exit, for selectively engaging said material about the circumference thereof, permitting material travel in said housing; slotted ports integral with said housing being offset with respect to one another; and a clearance passage means disposed at points formed between said housing and the line of web travel defined by the disposition of said roller means.
  • slotted ports are offset with respect to one another and the annular clearance passage formed between said housing and said line of film travel varies from 0.001 to 0.03 inches.
  • the instant invention contemplates usage where a pressure differential of less than 1.5 inches of water exists between the ambient atmosphere and the housing, as well as a relief means for minimizing the pressure differential.
  • Still another object of the present invention is to minimize any leakage from the chamber housing through the seals of the housing.
  • FIG. 1 is a chematic representation of a typical layout employing the concepts of the present invention with a web of film material.
  • FIG. 2 is a perspective detail of the sealing arrangement.
  • FIG. 1 as the web of film material 1 is drawn, it enters into an environmental chamber which is to be treated with a gaseous environment 2.
  • a gaseous environment 2 Such ma terial is urged to travel through a seal arrangement 3 and is guided and threaded around suitable rollers such as tension rollers 4.
  • suitable rollers such as tension rollers 4.
  • the film material ultimately exits through still another seal disposed at 5 which is located at the point of exit in the chamber.
  • Each of the aforementioned seals 3 and 5 respectively is provided with a roller 6 integral therewith which are seated in the sealing structure and are adapted to change the film material travel direction by 90 with respect to the point of entry.
  • the roller in turn provides a means for controlling the sealing length; for example, alteration in the diameter of the roller 6 permits such an adjustment.
  • the housing for the seals 3 and 5 respectively can be designed to accomodate a range of roller wrap; that is, the amount of surface contact between the roller in the sealing arrangement and the wrap of the web of material passing therethrough can be effectively varied from 1 to 355. In turn, this relationship will vary in accordance with the amount of length of seal desired. Also, the arrangement as shown in FIG. I obviously can be varied as to number of seals, tension rollers, and the disposition of such seals.
  • FIG. 2 details the seal assembly in perspective.
  • the roller 6 is mounted on a stationary shaft 7 within a close fitting housing structure 3,5.
  • This entire arrangement is in turn disposed within the chamber housing 2 at points of entry and exit respectively, determined by the type of treatment to be employed on the web or type of substrate material entering and exiting.
  • Suitable slots 8 are provided in the housing 3, where such slots are offset 90 with respect to one another for film to enter and exit from the housing 3.
  • Such slots are shown in FIG. 1 as 8, 9 respectively and are likewise displaced 90 from one another.
  • As film material 1 is fed into the housing through slots 8,9, it is urged to travel through an annular clearance shown as 10 in FIGS. 1 and 2. This clearance exits between the moving film material 1 and the housing 3, and some gas leakage does, in fact, occur at this point.
  • the present invention has been found to function quite satisfactorily where the film speed entering and exiting from the chamber is governed by the components of the transport system, that is: film strength, bearing load, available power, etc.; and such speed can be varied accordingly.
  • the seal is intended to normally operate at a relatively low pressure differential. A change in pressure less than 1.5 inches of water has been found acceptable. However, higher pressures introduce a leakage rate which must be compensated by a reduced annular gap and thus the system can become quite impractical.
  • the seal can be operated at any temperature which is compatible with the material employed in the seal or the film material moving through the chanber; also the seal may be employed to confine any gas, for example: air, ammonia, nitrogen, oxyden, etc., as long as such gas is compatible with the materials in the overall system.
  • Another unique feature of the present invention resides in its capability of drawing off select gaseous leakage by means of a vacuum port, thereby preventing contamination of the second gas.
  • a small vacuum port may be added to the exit slot and the vacuum can be adjusted for minimum pressure differential that is required to evacuate all the leakage. This arrangement is useful when even the slightest contamination or leakage cannot be tolerated.
  • an environmental apparatus for a web of nonmetallic material requiring treatment with at least two non-contaminated atmospheres'having sealed wall barriers permitting such web material to travel into and out of a housing
  • a housing roller means disposed integrally with respect to said housing proximate to said points of material entry and exit, for engaging said material about the circumference at an arcuate angle of from 1 to 355 thereof; slotted ports integral with said housing being offset with respect to one another for about and clearance passage means formed between said housing and the line of web travel defined by the disposition of said roller means enabling free material passage with minimum atmospheric leakage into and out of said housing.
  • annular clearance passage formed between said housing and said line of film travel varies from 0.001 to 0.03 inches.
  • the pressure differential between ambient atmosphere and said housing is less than 1.5 inches of water.
  • relief means are disposed at said exit slot to thereby minimize pressure differential between said ambient atmosphere and said housing.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Vapour Deposition (AREA)
  • Physical Vapour Deposition (AREA)
  • Eye Examination Apparatus (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US00316670A 1972-12-20 1972-12-20 Sealing arrangement for enclosed chamber Expired - Lifetime US3807058A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00316670A US3807058A (en) 1972-12-20 1972-12-20 Sealing arrangement for enclosed chamber
CA183,986A CA989896A (en) 1972-12-20 1973-10-23 Sealing arrangement for enclosed chamber
GB4962373A GB1444401A (en) 1972-12-20 1973-10-24 Sealing arrangement for enclosed chamber
JP48131172A JPS4991447A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-12-20 1973-11-21
DE2362625A DE2362625B2 (de) 1972-12-20 1973-12-17 Gehäuse zur Behandlung einer Bahn aus nichtmetallischen! Material in einer gashaltigen Atmosphäre
FR7345212A FR2211860A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-12-20 1973-12-18
JP1978054076U JPS53151921U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-12-20 1978-04-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00316670A US3807058A (en) 1972-12-20 1972-12-20 Sealing arrangement for enclosed chamber

Publications (1)

Publication Number Publication Date
US3807058A true US3807058A (en) 1974-04-30

Family

ID=23230116

Family Applications (1)

Application Number Title Priority Date Filing Date
US00316670A Expired - Lifetime US3807058A (en) 1972-12-20 1972-12-20 Sealing arrangement for enclosed chamber

Country Status (6)

Country Link
US (1) US3807058A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (2) JPS4991447A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA989896A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2362625B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2211860A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1444401A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030079837A1 (en) * 2001-10-29 2003-05-01 Etsuro Hirai Semiconductor processing apparatus for continuously forming semiconductor film on flexible substrate
US20070107781A1 (en) * 2004-05-25 2007-05-17 Stefan Hein Lock valve in particular for a strip processing unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741228C2 (de) * 1977-09-13 1983-04-14 Vsesojuznyj naučno-issledovatel'skij i eksperimental'nyj institut po pererabotke chimičeskich volokon, Moskva Vorrichtung zur kontinuierlichen Behandlung von bahnförmigem Textilmaterial unter Überdruck

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952569A (en) * 1958-01-28 1960-09-13 Nat Steel Corp Method and apparatus forming an ice seal in vapor deposition
US2989026A (en) * 1957-11-19 1961-06-20 Nat Steel Corp Vacuum coating apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512202U (ja) * 1991-07-26 1993-02-19 有限会社松本設計事務所 ボール球タイヤ連続構成車輪

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989026A (en) * 1957-11-19 1961-06-20 Nat Steel Corp Vacuum coating apparatus
US2952569A (en) * 1958-01-28 1960-09-13 Nat Steel Corp Method and apparatus forming an ice seal in vapor deposition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030079837A1 (en) * 2001-10-29 2003-05-01 Etsuro Hirai Semiconductor processing apparatus for continuously forming semiconductor film on flexible substrate
US20070107781A1 (en) * 2004-05-25 2007-05-17 Stefan Hein Lock valve in particular for a strip processing unit
US8499784B2 (en) * 2004-05-25 2013-08-06 Applied Materials Gmbh & Co. Kg Lock valve in particular for a strip processing unit

Also Published As

Publication number Publication date
CA989896A (en) 1976-05-25
JPS53151921U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-11-30
JPS4991447A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-08-31
GB1444401A (en) 1976-07-28
DE2362625A1 (de) 1974-06-27
FR2211860A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-07-19
DE2362625B2 (de) 1978-12-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: R Q O HOLDING COMPANY INC 111 WEST 2ND ST JAMESTOW

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GAF CORPORATION;REEL/FRAME:004006/0585

Effective date: 19820526

Owner name: R Q O HOLDING COMPANY INC, NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GAF CORPORATION;REEL/FRAME:004006/0585

Effective date: 19820526

AS Assignment

Owner name: CONGRESS FINANCIAL CORPORATION, A CA CORP., NEW YO

Free format text: SECURITY INTEREST;ASSIGNOR:R.Q.O. HOLDING COMPANY, INC.;REEL/FRAME:005328/0029

Effective date: 19900406