US3758969A - Fast start spray iron - Google Patents

Fast start spray iron Download PDF

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Publication number
US3758969A
US3758969A US00238456A US3758969DA US3758969A US 3758969 A US3758969 A US 3758969A US 00238456 A US00238456 A US 00238456A US 3758969D A US3758969D A US 3758969DA US 3758969 A US3758969 A US 3758969A
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US
United States
Prior art keywords
steam
tube
spray
generator
continuous
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
US00238456A
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English (en)
Inventor
W Davidson
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US3758969A publication Critical patent/US3758969A/en
Assigned to BLACK & DECKER, INC., A CORP. OF DE reassignment BLACK & DECKER, INC., A CORP. OF DE ASSIGNS AS OF APRIL 27, 1984 THE ENTIRE INTEREST Assignors: GENERAL ELECTRIC COMPANY A NY CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/22—Hand irons internally heated by electricity with means for supplying liquid to the article being ironed

Definitions

  • ABSTRACT discloses a steam and power spra Bridgeport, Conn.
  • [52 38/77 5 provement in the spray assembly that provides a con- [51] Int Cl 6 ,6 tinuous steam tube directly connected at one end to the 5 Fieid 77 83 77 9 spray assembly and extending down into close proximity to the steam generator at the other end whereby, as soon as steam is generated, it is ducted directly and im- References Cited UNITED STATES PATENTS mediately to the spray assembly to provide steam power therefor without significant heat losses.
  • the invention herein pertains to a steam and power spray iron wherein steam is used to power the spray and is directed to an improved spray assembly providing for immediate access of generated steam to the spray assembly for a fast start spray iron.
  • the present invention is directed to a steam and spray iron of the power type where steam is used to power the spray.
  • the iron has the usual water reservoir and steam generator connected to receive water from the reservoir through a metering valve to provide flash steam and direct it to the ironing surface and to the reservoir surface by a balance tube to pressurize the sealed reservoir.
  • the invention adds an improvement in the steampowered spray assembly that has a spray nozzle on the iron with a water tube connecting to the reservoir and terminating in a spray aperture in the nozzle assembly.
  • a continuous steam tube is connected directly to the spray assembly at one end to connect the spray aperture with the steam generator at the other end.
  • the continuous tube may be connected through the conventional steam dome over the generator.
  • the balance tube between the generator and reservoir may be used to carry the continuous tube and the dimensions of the tube may be smaller than the balance tube to provide an annular space between the tubes so that internally flowing steam in the continuous tube is conducted immediately and directly to the nozzle assembly while, at the same time, other generated steam flows externally of the continuous tube into the water tank thereby insulating the internal steam flow and preventing its condensation before it reaches the nozzle assembly.
  • the main object of the invention is to provide an iron with an improved steam-powered spray assembly that ensures a faster start spray iron than heretofore available.
  • FIGURE is a partial cross sectional and broken view of a typical steam and spray iron showing the application of the invention.
  • soleplate 10 having a plurality of steam ports 12 and outer shell 14 connected in any suitable manner to handle 16 all in known fashion.
  • soleplate 10 may be made from a suitable material such as cast aluminum with an electrical heating element 18 cast in position.
  • This heating element preferably is of the sheath type and, with the electrical resistance element, extends through an outer tubular protective sheath with the heating element separated from the outer sheath by an insulating compound resistant to heat such as granulated and compressed magnesium oxide.
  • the heating element generally extends in a loop beginning at the rear of the iron and along one side to the forward end and then rearwardly along the other side. Thus, substantially uniform heat distribution is provided when the iron is plugged in and activated.
  • the iron includes means for generating steam by providing water tank 20 with vertical outer riser tube means 22 in the forward portion for housing various operating mechanisms.
  • Outer tube means 22 generally is cylindrical but may be any suitable shape.
  • soleplate 10 has a steam generator cavity or boiler 24 into which water is drippe'd under control of metering valve structure generally indicated at 26 and including a button 28 and connected spring-biased vertical stem 30. The water dripped through orifice 32 from tank 20 onto the heated soleplate flashes into steam which is distributed through passages 34, under cover 36 and out ports 12 to the ironing surface.
  • a steam-powered spray assembly 38 with a conventional orifice may be operated by control button 40.
  • a typical power spray is shown in U.S. Pat. No.
  • Temperature control 42 operates to thermostatically control the heat generated in the soleplate in a known manner.
  • fill opening44 is provided with direct communication to the tank through an annulus 46 and through liquid fill valve means 48 to the interior of water tank 20.
  • a pressure balancing tube 50 that is open at its upper end to the upper portion of tank 20 and open at its bottom end to generator 24 as shown.
  • steam pressure is equalized on both sides of water valve 26 so that water will drip for steam generation.
  • a steam pressure valve generally indicated at 54 and of known construction, is provided at the lower end of a separate tube means adjacent balance tube 50.
  • valve 54 opens at a predetermined pressure to admit steam into the distribution passages 34 and maintain a given steam pressure within the system.
  • a steam dome 52 substantially over or adjacent the steam generator 24.
  • the spray assembly consists of the spray nozzle with a water tube 56 connecting with the bottom of the reservoir and ending internally of the nozzle assembly at a spray aperture 58.
  • steam is provided to the nozzle assembly on one side of the water tube and connecting with the other side of the spray aperture at 60.
  • This pressurized steam flowing through aperture 60 at high velocity, flows across water tube 56 through the aligned aperture 58-60.
  • water is drawn upwardly through water tube 56 and upon striking the high velocity steam, it is atomized and sprayed outwardly in a finely divided spray as disclosed in the US. Pat. No. 3,041,757 above. It is recognized that the specific aperture structure 58 and 60 shown may be replaced by other equivalent spray mechanisms which retain the aspirating effect and these are contemplated by the term apertures as used in the claims.
  • the steam available to spray nozzle 38 enters the spray assembly directly from the upper chamber formed by riser tube 22 so that it is necessary for steam pressure to build up before the spray assembly can be used. This may take two to 3 minutes before getting a heavy misty spray. This is true even when the steam is emptied into the upper portion of riser tube 22 fairly close to the spray assembly as shown in said U.S. Pat. No. 3,497,974. There is still the time lag for the pressure build-up before the spray is operative.
  • a preferred form is to make tube 62 of smaller cross section than the balance tube so the tubes are spaced from one another by an annulus around tube 62 whereby steam flows both internally of continuous tube 62 and externally through balance tube 50.
  • This concentric flow arrangement requires no additional structure to ensure a further benefit of the same temperature existing on both sides of tube 62 so that no condensation occurs on tube 62.
  • steam generated enters the tube and is immediately and promptly delivered to the spray assembly 38 to power it well before the normal pressure build-up.
  • the expedient of connecting steam tube 62 directly to the spray assembly and effectively extending it into the steam generating chamber as well as extending it through the balance tube provides for substantially immediate pressure available for power spraying as soon as steam is generated and avoids appreciable lags due to pressure build-up heretofore required. Consequently, the spray is very fast starting and available immediately upon steam generation.
  • a steam and spray iron having a closed water reservoir and a single steam generator connected to receive water from said reservoir through a metering valve and direct steam to both the ironing surface and to the reservoir to pressurize said reservoir, the improvement in a continuous steam-powered spray assembly comprising,
  • a spray nozzle on said iron having a water tube connecting with said reservoir and terminating in a spray aperture in said assembly

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
US00238456A 1972-03-27 1972-03-27 Fast start spray iron Expired - Lifetime US3758969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23845672A 1972-03-27 1972-03-27

Publications (1)

Publication Number Publication Date
US3758969A true US3758969A (en) 1973-09-18

Family

ID=22897970

Family Applications (1)

Application Number Title Priority Date Filing Date
US00238456A Expired - Lifetime US3758969A (en) 1972-03-27 1972-03-27 Fast start spray iron

Country Status (2)

Country Link
US (1) US3758969A (cg-RX-API-DMAC7.html)
JP (1) JPS496289A (cg-RX-API-DMAC7.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170835A (en) * 1978-10-27 1979-10-16 General Electric Company Iron with mode valve
US4669207A (en) * 1984-11-23 1987-06-02 Seb S.A. Water injection device for a steam iron
FR2771110A1 (fr) * 1997-11-19 1999-05-21 Seb Sa Appareil et procede de repassage avec generation de vapeur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188758A (en) * 1962-11-20 1965-06-15 Gen Electric Liquid spray iron
US3224122A (en) * 1962-11-09 1965-12-21 Sunbeam Corp Pressing iron
US3407522A (en) * 1962-06-19 1968-10-29 Sunbeam Corp Pressing iron
US3497974A (en) * 1968-06-24 1970-03-03 Gen Electric Steam iron spray valve structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407522A (en) * 1962-06-19 1968-10-29 Sunbeam Corp Pressing iron
US3224122A (en) * 1962-11-09 1965-12-21 Sunbeam Corp Pressing iron
US3188758A (en) * 1962-11-20 1965-06-15 Gen Electric Liquid spray iron
US3497974A (en) * 1968-06-24 1970-03-03 Gen Electric Steam iron spray valve structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170835A (en) * 1978-10-27 1979-10-16 General Electric Company Iron with mode valve
US4669207A (en) * 1984-11-23 1987-06-02 Seb S.A. Water injection device for a steam iron
FR2771110A1 (fr) * 1997-11-19 1999-05-21 Seb Sa Appareil et procede de repassage avec generation de vapeur

Also Published As

Publication number Publication date
JPS496289A (cg-RX-API-DMAC7.html) 1974-01-19

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BLACK & DECKER, INC., 1423 KIRKWOOD HIGHWAY NEWARK

Free format text: ASSIGNS AS OF APRIL 27, 1984 THE ENTIRE INTEREST;ASSIGNOR:GENERAL ELECTRIC COMPANY A NY CORP.;REEL/FRAME:004349/0275

Effective date: 19840824

STCK Information on status: patent revival

Free format text: ABANDONED - RESTORED