CA2555007A1 - Water heater electrical enclosure insert/foam dam - Google Patents

Water heater electrical enclosure insert/foam dam Download PDF

Info

Publication number
CA2555007A1
CA2555007A1 CA002555007A CA2555007A CA2555007A1 CA 2555007 A1 CA2555007 A1 CA 2555007A1 CA 002555007 A CA002555007 A CA 002555007A CA 2555007 A CA2555007 A CA 2555007A CA 2555007 A1 CA2555007 A1 CA 2555007A1
Authority
CA
Canada
Prior art keywords
jacket
water heater
dam
foam
opening
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
CA002555007A
Other languages
French (fr)
Other versions
CA2555007C (en
Inventor
David L. Henderson
Jozef Boros
Kenneth J. Hicks
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.)
Rheem Manufacturing Co
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
Priority claimed from US10/611,481 external-priority patent/US6917756B2/en
Application filed by Individual filed Critical Individual
Publication of CA2555007A1 publication Critical patent/CA2555007A1/en
Application granted granted Critical
Publication of CA2555007C publication Critical patent/CA2555007C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C44/1228—Joining preformed parts by the expanding material
    • B29C44/1242—Joining preformed parts by the expanding material the preformed parts being concentric
    • B29C44/1247—Joining preformed parts by the expanding material the preformed parts being concentric comprising dams or sealing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0015—Insulating

Landscapes

  • Details Of Fluid Heaters (AREA)

Abstract

Electrical components projecting outwardly from the storage tank portion of an electric water heater are shielded from foam insulation material being injected into an insulation space between the tank and an outer jacket portion of the water heater by a hollow, open sided foam dam structure extending through a jacket opening and circumscribing the electrical components. Force exerting projections on the dam engage the interior side surface of the jacket and forcibly hold the inner side of the dam structure in sealing engagement with the tank. The projections also hold an outer side peripheral lip of the dam in a an outwardly and resiliently deflected orientation in which it is sealingly pressed inwardly against the outer side surface of the jacket around the periphery of the opening therein to prevent injected foam from being forced outwardly through the jacket opening.
CA002555007A 2003-07-01 2004-03-19 Water heater electrical enclosure insert/foam dam Expired - Fee Related CA2555007C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/611,481 US6917756B2 (en) 2003-07-01 2003-07-01 Water heater electrical enclosure insert/foam dam
US10/611,481 2003-07-01
CA002461388A CA2461388C (en) 2003-07-01 2004-03-19 Water heater electrical enclosure insert/foam dam

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002461388A Division CA2461388C (en) 2003-07-01 2004-03-19 Water heater electrical enclosure insert/foam dam

Publications (2)

Publication Number Publication Date
CA2555007A1 true CA2555007A1 (en) 2005-01-01
CA2555007C CA2555007C (en) 2007-06-12

Family

ID=37055152

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002555003A Expired - Fee Related CA2555003C (en) 2003-07-01 2004-03-19 Water heater electrical enclosure insert/foam dam
CA002555007A Expired - Fee Related CA2555007C (en) 2003-07-01 2004-03-19 Water heater electrical enclosure insert/foam dam

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002555003A Expired - Fee Related CA2555003C (en) 2003-07-01 2004-03-19 Water heater electrical enclosure insert/foam dam

Country Status (1)

Country Link
CA (2) CA2555003C (en)

Also Published As

Publication number Publication date
CA2555003C (en) 2007-06-12
CA2555007C (en) 2007-06-12
CA2555003A1 (en) 2005-01-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20220301

MKLA Lapsed

Effective date: 20200831