CA2402551A1 - Double walled baffle - Google Patents

Double walled baffle Download PDF

Info

Publication number
CA2402551A1
CA2402551A1 CA002402551A CA2402551A CA2402551A1 CA 2402551 A1 CA2402551 A1 CA 2402551A1 CA 002402551 A CA002402551 A CA 002402551A CA 2402551 A CA2402551 A CA 2402551A CA 2402551 A1 CA2402551 A1 CA 2402551A1
Authority
CA
Canada
Prior art keywords
sealing material
baffle
sealing
cavity
thermal expansion
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
CA002402551A
Other languages
French (fr)
Other versions
CA2402551C (en
Inventor
Gerald E. Fitzgerald
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.)
Sika Corp
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24103506&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2402551(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2402551A1 publication Critical patent/CA2402551A1/en
Application granted granted Critical
Publication of CA2402551C publication Critical patent/CA2402551C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B62D29/002—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material a foamable synthetic material or metal being added in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1214—Anchoring by foaming into a preformed part, e.g. by penetrating through holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/18—Filling preformed cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/20—Patched hole or depression

Abstract

An expandable baffle (16) for sealing a cavity (24) of an automobile (10) is provided. The baffle (16) includes a thermally expandable sealing material (18) which has an expansion temperature similar to the temperatures achieved in specific stages of the automotive manufacturing processes (e.g., the paint bake stage).
The inventive baffle (16) further includes a support (20) for the sealing material (18) which maintains the material at the desired location within the cavity (24) until thermal expansion. The support (20) is formed of a material having a melting point higher than the thermal expansion temperature of the sealing material (18). In one embodiment, the support comprises a pair of solid, spaced-apart sidewalls (26a, 26b) that "bow" upon expansion of the sealing material (46). In an alternate embodiment, the sidewalls (62a, 62b) include a plurality of openings (64) formed therein through which the sealing material (52) flows during thermal expansion. The inventive baffles (FIGS. 2, 5, 6) are useful for providing noise attenuation and for sealing the cavity (24) from moisture and contaminants while providing a limited degree of structural reinforcement.
CA002402551A 2000-03-17 2001-02-21 Double walled baffle Expired - Fee Related CA2402551C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/527,923 US6382635B1 (en) 2000-03-17 2000-03-17 Double walled baffle
US09/527,923 2000-03-17
PCT/US2001/005665 WO2001071225A1 (en) 2000-03-17 2001-02-21 Double walled baffle

Publications (2)

Publication Number Publication Date
CA2402551A1 true CA2402551A1 (en) 2001-09-27
CA2402551C CA2402551C (en) 2009-01-20

Family

ID=24103506

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002402551A Expired - Fee Related CA2402551C (en) 2000-03-17 2001-02-21 Double walled baffle

Country Status (10)

Country Link
US (1) US6382635B1 (en)
EP (1) EP1134126B1 (en)
JP (1) JP5013646B2 (en)
AT (1) ATE285917T1 (en)
AU (1) AU2001243222A1 (en)
CA (1) CA2402551C (en)
DE (1) DE60107989T2 (en)
ES (1) ES2236065T3 (en)
MX (1) MXPA02009015A (en)
WO (1) WO2001071225A1 (en)

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Also Published As

Publication number Publication date
US6382635B1 (en) 2002-05-07
DE60107989D1 (en) 2005-02-03
JP5013646B2 (en) 2012-08-29
EP1134126A2 (en) 2001-09-19
ES2236065T3 (en) 2005-07-16
MXPA02009015A (en) 2003-04-25
EP1134126A3 (en) 2002-07-17
AU2001243222A1 (en) 2001-10-03
JP2003534963A (en) 2003-11-25
DE60107989T2 (en) 2005-09-29
WO2001071225A1 (en) 2001-09-27
EP1134126B1 (en) 2004-12-29
ATE285917T1 (en) 2005-01-15
CA2402551C (en) 2009-01-20

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