EP0159134A1 - Werkzeug für Oberflächenentfernung - Google Patents

Werkzeug für Oberflächenentfernung Download PDF

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Publication number
EP0159134A1
EP0159134A1 EP19850301667 EP85301667A EP0159134A1 EP 0159134 A1 EP0159134 A1 EP 0159134A1 EP 19850301667 EP19850301667 EP 19850301667 EP 85301667 A EP85301667 A EP 85301667A EP 0159134 A1 EP0159134 A1 EP 0159134A1
Authority
EP
European Patent Office
Prior art keywords
water
sole plate
aid
stripping
aid according
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
EP19850301667
Other languages
English (en)
French (fr)
Other versions
EP0159134B1 (de
Inventor
Allan James Wiseman
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0159134A1 publication Critical patent/EP0159134A1/de
Application granted granted Critical
Publication of EP0159134B1 publication Critical patent/EP0159134B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/288—Instantaneous electrical steam generators built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C7/00—Paperhanging
    • B44C7/02—Machines, apparatus, tools or accessories therefor
    • B44C7/027—Machines, apparatus, tools or accessories for removing wall paper

Definitions

  • the present invention relates to a surface stripping aid suitable for use in stripping wallpaper and/or other coverings from surfaces.
  • the present invention provides a surface stripping aid comprising a body having a sole plate and a handgrip means, said body having a heated water passage means with an inlet means provided with connection means for connection to a water supply so as to supply water to said passage means in use of the aid with said sole plate disposed in a substantially vertical position and an outlet means extending through and distributed substantially across said sole plate, said heated water passage means being formed and arranged so that when, in use of the aid, water enters said passage means it is substantially vapourised and expelled through the sole plate via said outlet means therein into contact with a surface to be stripped against which said sole plate is held.
  • the present invention also provides a surface stripping aid comprising a body having a sole plate and a handgrip means, said body having a heated water passage means with an inlet means provided with connection means for connection to a water supply and a plurality of outlet means extending through and distributed across said sole plate, said heated water passage means being formed and arranged so that when in use of the aid, water enters said passage means it is substantially vapourised and expelled through the sole plate via said outlet means therein into contact with a surface to be stripped against which said sole plate is held, said connection means being provided with one-way valve means for permitting only admission of water to the passage means through said inlet means.
  • steam can be generated more or less directly at the point of use and more or less immediately as required. This enables a relatively lightweight and economic form of construction to be employed which is easy to handle in practice.
  • Fig. 1 shows a personlusing a stripping aid 2 of the invention in one hand and a scraper 3 in the other to remove wallpaper 4 from a wall surface 5.
  • the relatively light-weight stripping aid 2 is connected to an electrical mains supply 6 by a medium duty electrical cable 7 which together with a relatively light and small bore water hose 8 is conveniently trailed over the user's shoulder.
  • the water hose 8 is connected to a pressurised e.g. hand pumped water container 9 or could instead be connected to the domestic water supply.
  • the stripping aid 2 comprises a body 10 conveniently of lightweight plastic, having a metal (e.g. steel or aluminium) sole plate 11 secured thereto with the aid of mounting screws 12.
  • a metal e.g. steel or aluminium
  • an electrically insulated 15Aheating element 15 suitably supported 16 in thermal contact with said wall 13.
  • the wall 13 At its centre the wall 13 is provided with a rearwardly extending conduit means 17 which is led out through a handgrip portion 18 of the body 10 to a connector 19 whereat is connected the water supply hose 8. Downstream of said connector is provided first a non-return valve 20 and then a normally-closed automatic valve 21 provided with an operating linkage 22 which extends to alongside one edge 23 of the sole plate 11 so as to stand slightly proud thereof and so that when the sole plate 11 is held against the surface 5 the linkage 22 is displaced to automatically open the automatic valve 21.
  • the heating element 15 is provided with an automatic thermal cut-out switch 24 and a manually operable control switch 25.
  • the sole plate 23 is provided with a plurality of small bore outlets 26 distributed across its bottom face 27 and extending from the chamber 14 behind it and from a terminal portion of the water passage means which extend from the connector 19 and through said chamber 14.
  • the aid liquid water is fed into the chamber 14 when the sole plate 23 is placed against the wall surface 5 and is substantially immediately vapourised filling the chamber with steam which is forced out through the outlets 26 into the wall paper 4 which is rapidly softened and can then be readily scraped off with the aid of a suitable scraper 3 shown in more detail in Fig. 5.
  • the scraper is provided with a spray nozzle 27 connected by a suitable hose 28 to a pressurised water supply (not shown) and disposed so as to direct a water spray 29 between the blades 30 at each end of the scraper.
  • the flash-steam generator of Figs. 3 and 4 comprises a generally cylindrical body 31 having at one end 32 an axial bore 33 provided with a non-return valve 34, said bore extending radially outwardly at an axially intermediate part 35 of the body 31.
  • the body 31 has an external screwthread 36 which screwthreadedly engages an internally threaded portion at one end of a tubular member 38 on which is supported an annular electrical heating element 39.
  • the other end portion 40 has a cylindrical inner wall surface 41 having a diameter corresponding to the outside diameter of the screwthread 36 so as to define a narrow helical water passage means 37 into which the water is fed from the bore 33 and then vapourised and forced out of under pressure.
  • An outer housing 42 provides electrical and thermal insulation as required.
  • Fig. 6 shows a second stripping aid of the invention generally similar to the first, like parts being identified by hike reference numerals.
  • an internal water supply in the form of a reservoir 43 mounted at the forward end 44 of the body 10 so that in the operating position of the aid with the sole plate 11 substantially vertical the reservoir 43 is substantially above the inlet means 17 so that water is fed via the latter into the heated passage means 13 under the influence of gravity.
  • the inlet means 17 is provided with a manually operable valve 45 operating means in the form of a trigger mechanism 46 (all these parts being indicated schemacti- cally).
  • This second passage 47 may be used as a return passage where a recirculating water supply system is used (see below) or as an additional inlet means which by means of manual operation of the controller 48 of an associated valve 49 can be used to increase the steam output of the aid by increasing water supply to the heated passage means 13 for example when it is required to strip heavier wallpapers.
  • a variable flow rate form of the manually operable valve 45 to vary the steam output rate.
  • the steam output rate of the aid of the invention may be varied within relatively wide rates and in general will be selected to be similar to that of conventional stripping aids. Conveniently an output rate corresponding to a water consumption rate of some 4 to 40 mls. per minute is used though it will be appreciated that the aid of the present invention will tend to produce a higher useful steam output rate i.e. at the sole plate than conventional aids due to the greater efficiency of the aid of the present invention.
  • the second aid uses a modified form of the automatic valve means 21 and operating member 22 wherein the latter is formed integrally with a frusto-conical valve member 50 and is in the form of a cylindrical member slidably mounted in a bore 51 in the sole plate 11.
  • the valve member 50 sealingly engages with its frusto-conical surface 52 the outlet 53 of the inlet means 17 and is held thereagainst by a resilient biasing means in the form of a helical spring 54.
  • Fig. 8 The third embodiment of Fig. 8 is again generally similar to the previous ones and accordingly for purposes of clarity details of the water supply arrangements have been omitted.
  • a fluid fuel burner 55 mounted towards the rear end 56 of the body 10 at the base of a combustion chamber 57 extending across and immediately the heated water passage 13 above the sole plate 11.
  • An air inlet 58 is provided adjacent the burner 55 and an exhaust outlet 59 at the forward end 44 of the body 10.
  • Suitable liquid or gaseous fuel is supplied to the burner from an internal reservoir (not shown) or from an external one via a fuel pipe 60.
  • a suitable ignition means with a remote operating switch 61 is also desirably provided.
  • an integral scraper 62 is also provided at the forward end 44 of the body 10 to break the surface of impermeable material to be stripped e.g. gloss painted wallpaper and/or to loosen material which has already been treated to a greater or lesser extent with the aid e.g. during a return stroke of the aid.
  • Fig. 9 shows an external water supply 9 with a manual pump 63 for pressurizing the vessel 64 of said supply 9 to expel water via a first valved 65 branch 66 of the water supply hose 8 leading to the main body 10 of the aid.
  • a mechanical, e.g. electrically propelled, circulating pump 67 is connected to a second branch 68, unused water being recycled to the vessel 64 via the return pipe 47.
  • the valve 65 in the first branch is closed.
  • a pressurized gas container 68 with suitable valve means 69 or motorized air pump 74 and filter 75.
  • a pressure gauge 70 and/or pressure relief valve 71 are also provided for safety reasons and operating convenience.
  • a filling cap 72 is provided as well as filters 73 to protect the circulating pump 67 and first branch 66 against ingress of foreign bodies.
  • the stripping end of the invention can be made relatively economically and compactly so that it can be easily used even by DIY practitioners for extended periods without fatigue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP19850301667 1984-03-15 1985-03-11 Werkzeug für Oberflächenentfernung Expired EP0159134B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8406754 1984-03-15
GB848406754A GB8406754D0 (en) 1984-03-15 1984-03-15 Surface stripping aid

Publications (2)

Publication Number Publication Date
EP0159134A1 true EP0159134A1 (de) 1985-10-23
EP0159134B1 EP0159134B1 (de) 1988-05-11

Family

ID=10558127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850301667 Expired EP0159134B1 (de) 1984-03-15 1985-03-11 Werkzeug für Oberflächenentfernung

Country Status (3)

Country Link
EP (1) EP0159134B1 (de)
DE (1) DE3562584D1 (de)
GB (1) GB8406754D0 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268478A2 (de) * 1986-11-20 1988-05-25 Black & Decker Inc. Vorrichtung zum Entfernen von Tapeten mittels Dampf
US4990745A (en) * 1988-06-15 1991-02-05 Black & Decker Inc. Steam generators
GB2248207A (en) * 1990-09-14 1992-04-01 Eugene Camallas Divilly Device for facilitating removal of wallpaper, paint or the like
FR2672250A1 (fr) * 1991-02-06 1992-08-07 Cogia Procede et appareil destine a decaper une surface recouverte d'un revetement.
US5388180A (en) * 1991-09-14 1995-02-07 Black & Decker Inc. Electrical steam generator with multiple passages of unequal cross-section
EP1323547A2 (de) * 2001-11-10 2003-07-02 Klaus Adelheid Doppelwandiger Hohlraumspachtel
EP1527827A2 (de) * 2003-10-29 2005-05-04 Alfred Kärcher GmbH & Co. KG Dampfreinigungsgerät

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665501A (en) * 1949-06-17 1952-01-23 Bernard Alfred Edwards Improvements in and relating to hand scraping implements
US3109083A (en) * 1960-10-19 1963-10-29 Master Appliance Corp Heat blow gun with scraper
WO1983002753A1 (en) * 1982-02-12 1983-08-18 Skarsten, Stephen, Randolph Heated gas blower device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665501A (en) * 1949-06-17 1952-01-23 Bernard Alfred Edwards Improvements in and relating to hand scraping implements
US3109083A (en) * 1960-10-19 1963-10-29 Master Appliance Corp Heat blow gun with scraper
WO1983002753A1 (en) * 1982-02-12 1983-08-18 Skarsten, Stephen, Randolph Heated gas blower device

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268478A2 (de) * 1986-11-20 1988-05-25 Black & Decker Inc. Vorrichtung zum Entfernen von Tapeten mittels Dampf
EP0269369A2 (de) * 1986-11-20 1988-06-01 Black & Decker Inc. Vorrichtung zum Entfernen von Tapeten mittels Dampf
EP0274202A2 (de) * 1986-11-20 1988-07-13 Black & Decker Inc. Vorrichtung zum Entfernen von Tapeten mittels Dampf
US4833298A (en) * 1986-11-20 1989-05-23 Black & Decker Inc. Wallpaper steamer
US4835364A (en) * 1986-11-20 1989-05-30 Black & Decker Inc. Wallpaper steamer
US4843215A (en) * 1986-11-20 1989-06-27 Black & Decker Inc. Wallpaper steamer
US4851642A (en) * 1986-11-20 1989-07-25 Black & Decker Inc. Wallpaper steamer
US4855568A (en) * 1986-11-20 1989-08-08 Black & Decker Inc. Wallpaper steamer
US4857703A (en) * 1986-11-20 1989-08-15 Black & Decker Inc. Steam generator
EP0268478A3 (en) * 1986-11-20 1989-12-06 Black & Decker Inc. Wallpaper steamer
EP0274202A3 (en) * 1986-11-20 1989-12-20 Black & Decker Inc. Wallpaper steamer
EP0269369A3 (en) * 1986-11-20 1990-07-18 Black & Decker Inc. Wallpaper steamer
US4990745A (en) * 1988-06-15 1991-02-05 Black & Decker Inc. Steam generators
GB2248207A (en) * 1990-09-14 1992-04-01 Eugene Camallas Divilly Device for facilitating removal of wallpaper, paint or the like
FR2672250A1 (fr) * 1991-02-06 1992-08-07 Cogia Procede et appareil destine a decaper une surface recouverte d'un revetement.
WO1992013727A1 (fr) * 1991-02-06 1992-08-20 Cogia Procede de decapage d'un revetement et decapeur pour la mise en ×uvre de ce procede
US5388180A (en) * 1991-09-14 1995-02-07 Black & Decker Inc. Electrical steam generator with multiple passages of unequal cross-section
EP1323547A2 (de) * 2001-11-10 2003-07-02 Klaus Adelheid Doppelwandiger Hohlraumspachtel
EP1527827A2 (de) * 2003-10-29 2005-05-04 Alfred Kärcher GmbH & Co. KG Dampfreinigungsgerät
EP1527827A3 (de) * 2003-10-29 2006-12-13 Alfred Kärcher GmbH & Co. KG Dampfreinigungsgerät

Also Published As

Publication number Publication date
GB8406754D0 (en) 1984-04-18
EP0159134B1 (de) 1988-05-11
DE3562584D1 (en) 1988-06-16

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