GB2506335A - Duct hatch assembly - Google Patents

Duct hatch assembly Download PDF

Info

Publication number
GB2506335A
GB2506335A GB1212623.1A GB201212623A GB2506335A GB 2506335 A GB2506335 A GB 2506335A GB 201212623 A GB201212623 A GB 201212623A GB 2506335 A GB2506335 A GB 2506335A
Authority
GB
United Kingdom
Prior art keywords
cover
hatch assembly
frame
hatch
layer
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
GB1212623.1A
Other versions
GB201212623D0 (en
GB2506335B (en
Inventor
Derek Alfred Ward
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.)
Intumescent Systems Ltd
Original Assignee
Intumescent Systems Ltd
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 Intumescent Systems Ltd filed Critical Intumescent Systems Ltd
Priority to GB1212623.1A priority Critical patent/GB2506335B/en
Publication of GB201212623D0 publication Critical patent/GB201212623D0/en
Publication of GB2506335A publication Critical patent/GB2506335A/en
Application granted granted Critical
Publication of GB2506335B publication Critical patent/GB2506335B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/08—Built-in cupboards; Masks of niches; Covers of holes enabling access to installations
    • 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
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/08—Doors or covers specially adapted for smoke-boxes, flues, or chimneys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/60—Service arrangements

Abstract

A hatch assembly located in use over ducting. The assembly comprises a main cover 4 and a frame 6. The frame has, located around its periphery, a smoke and gas seal 9 and a layer of intumescent material 8 is located on the cover. The frame may incorporate a slot 14 in which a flange 16 on one edge of the cover is located. At least one side of the cover may be provided with a layer of fire proof material.

Description

Hatch assembly
Field of invention
The present invention relates to a hatch assembly. More especially the invention relates to an inspection hatch located over a boiler flue or duct that can be removed to access and inspect the flue or duct behind.
Background to the invention
The majority of homes in the UK are built with boiler flues hidden behind walls or ceilings that cannot be easily be accessed for inspection.
New gas safety regulations will require the entire length of the gas flues from boilers to be visible during annual gas safety checks. If the boiler fails to work then carbon monoxide may be released which travels through the flues. Consequently boiler flues will soon need to be inspected to ensure that all joints are fixings are secure and undamaged.
The present invention seeks to provide an inspection hatch for a boiler flue suitable for use over gas flues or similar ducting that allows inspection of the flue or ducting but provides the necessary sealing and fire protection when shut.
Statement of invention
According to a first aspect of the invention there is provided a hatch assembly located in use over ducting allowing access to the ducting when required, the hatch assembly comprising a main oover and a frame having located around its periphery a smoke and gas seal and a layer of intumescent material.
Preferably the frame includes a recessed slot along at least one side thereof. Preferably the cover inoludes an outwardly projeoting flange which in use, is boated within the slot.
Preferably at least one side of the oover is provided with a layer of fire proof material.
Brief description of the drawings
One embodiment of the invention will now be described by way of example only, with reference to the aocompanying figures in which Figure 1 illustrates a hatch assembly constructed in accordance with the invention, with the hatch cover separated from the frame; Figure 2 illustrates the hatch assembly of figure 1 closed; Figure 3 illustrates the hatch assembly of figures 1 and 2 closed viewed from inside; and Figure 4 illustrates the locking mechanism of the hatch assembly for figures 1 to 3.
Detailed description of preferred embodiments
Referring to figure 1, a hatch assembly 2 constructed in accordance with the invention comprises a cover or door 4 detachable attached to a frame 6 constructed within a wall of a building adjacent a boiler flue or other ducting that may require inspection.
The cover 4 and frame 6 are shown as being generally square but can be clearly of any suitable shape.
The cover 4 has a layer of fire protection material 8 on its inside surface.
The frame 6 has a smoke and gas seal 8 extending around its entire periphery which prevents smoke or gas expelled from the boiler and travelling through the flue from entering the building through the hatch assembly 2.
As can be seen in figure 3, a layer of intumescent material 10 is provided around the frame periphery on its inside. The intumescent material 10 expands when heated closing all gaps and preventing any flames and heat from being released into the building through The hatch 2.
The cover 4 of the hatch 2 engages with the frame 6 via a simple locking mechanism 12 (see figure 4) . The locking mechanism 12 allows the cover to be released and opened by simply pressing the cover4 towards the frame 6.
One side of the frame 6 includes a recessed slot 14 and one side of the cover 4 has a perpendicularly projecting flange 16. In use, when the cover 4 is shut against the frame 6 the flange 16 of the cover 4 is located within the slot 14 of the frame 6.
The cover 4 oan be entirely removed from the frame 6 to allow the entire flue behind to be accessed for inspection. The cover 4 is removed by simply lifting the door flange 16 from the slot 14 and removing the cover from the frame 6.
Onoe inspection has been completed the oover 4 is attaohed baok onto the frame 6 by dropping the flange 14 baok into the slot 16 arid closing the oover 4 against the frame 6.
It is envisages that simple attachment and removal of the oover can be carried out through other commonly used methods.
The hatch 2 can be fitted to walls and ceilings either horizontally or vertically.
It will be understood, that the various embodiments described herein have been described by way of example only and that modifications may be made thereto without departing from the spirit and scope of the present invention as defined in the accompanying claims.

Claims (5)

  1. Claims 1. A hatch assembly located in use over ducting allowing access to the ducting when required, the hatch assembly comprising a main cover and a frame having located around its periphery a smoke and gas seal and a layer of intumescent material.
  2. 2. A hatch assembly according to claim 1, wherein the frame includes a recessed slot along at least one side thereof.
  3. 3. A hatch assembly according to claim 2, wherein the cover includes an outwardly projecting flange which in use, is located within the slot.N0
  4. 4. A hatch assembly according to any one of claims 1 to 3, wherein at least one side of the cover is provided with a 0 layer of fire proof material.
  5. 5. A hatch assembly as hereinbefore described and referred to in the accompanying figures.
GB1212623.1A 2012-07-16 2012-07-16 Inspection hatch assembly Active GB2506335B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1212623.1A GB2506335B (en) 2012-07-16 2012-07-16 Inspection hatch assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1212623.1A GB2506335B (en) 2012-07-16 2012-07-16 Inspection hatch assembly

Publications (3)

Publication Number Publication Date
GB201212623D0 GB201212623D0 (en) 2012-08-29
GB2506335A true GB2506335A (en) 2014-04-02
GB2506335B GB2506335B (en) 2018-07-04

Family

ID=46799685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1212623.1A Active GB2506335B (en) 2012-07-16 2012-07-16 Inspection hatch assembly

Country Status (1)

Country Link
GB (1) GB2506335B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930529A (en) * 2015-06-24 2015-09-23 丁毅 Partition door
AU2015246127B2 (en) * 2014-10-24 2021-04-22 Rakman International Pty Ltd A fire rated access panel and duct system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318975A (en) * 1996-05-01 1998-05-13 Nullifire Ltd Fire resistant duct
EP1489136A1 (en) * 2003-06-18 2004-12-22 HILTI Aktiengesellschaft Use of thermoexpandable graphite intercalation compounds for the preparation of fireproof seals and process for their preparation
GB2453950A (en) * 2007-10-23 2009-04-29 Emcogroup Ltd Fire damper
EP2100791A1 (en) * 2008-03-10 2009-09-16 Alstom Transport S.A. Rail vehicle chassis equipped with thermal insulation panels
EP2446931A1 (en) * 2010-10-26 2012-05-02 Aralco Natural Ventilation Systems NV Fire damping ventilation device
US20130068104A1 (en) * 2011-09-15 2013-03-21 Lawrence Livermore National Security, Llc Intumescent sealants in filters and other equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259932B (en) * 1991-07-18 1994-08-10 Profilex Limited Shaftwall access door assembly
AU2011205195A1 (en) * 2010-08-17 2012-03-08 L & A. Fazzini Manufacturing Pty Ltd Access Panel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318975A (en) * 1996-05-01 1998-05-13 Nullifire Ltd Fire resistant duct
EP1489136A1 (en) * 2003-06-18 2004-12-22 HILTI Aktiengesellschaft Use of thermoexpandable graphite intercalation compounds for the preparation of fireproof seals and process for their preparation
GB2453950A (en) * 2007-10-23 2009-04-29 Emcogroup Ltd Fire damper
EP2100791A1 (en) * 2008-03-10 2009-09-16 Alstom Transport S.A. Rail vehicle chassis equipped with thermal insulation panels
EP2446931A1 (en) * 2010-10-26 2012-05-02 Aralco Natural Ventilation Systems NV Fire damping ventilation device
US20130068104A1 (en) * 2011-09-15 2013-03-21 Lawrence Livermore National Security, Llc Intumescent sealants in filters and other equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AU2011205195 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2015246127B2 (en) * 2014-10-24 2021-04-22 Rakman International Pty Ltd A fire rated access panel and duct system
CN104930529A (en) * 2015-06-24 2015-09-23 丁毅 Partition door

Also Published As

Publication number Publication date
GB201212623D0 (en) 2012-08-29
GB2506335B (en) 2018-07-04

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