US3703777A - Steam-dry iron - Google Patents

Steam-dry iron Download PDF

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Publication number
US3703777A
US3703777A US104252A US3703777DA US3703777A US 3703777 A US3703777 A US 3703777A US 104252 A US104252 A US 104252A US 3703777D A US3703777D A US 3703777DA US 3703777 A US3703777 A US 3703777A
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US
United States
Prior art keywords
piston
cylinder
reservoir
water
orifice
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
US104252A
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English (en)
Inventor
Robert S Knapp
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.)
Hoover Co
Original Assignee
Hoover Co
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Publication date
Application filed by Hoover Co filed Critical Hoover Co
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Publication of US3703777A publication Critical patent/US3703777A/en
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    • 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
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D06F75/18—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator

Definitions

  • FIG. 1 A first figure.
  • STEAM-DRY IRON The present invention relates to steam irons and a principal object of the invention isto provide new and improved devices of the character described.
  • Steam irons of the type which include a water supply tank enclosed within the iron shell and a valve selectively operable to control flow of water from the tank to a flash steam boiler formed within the iron soleplate are well known in the .art. Also known in the art are steam irons containing a pump which may be selective- Iy operated to inject a'charge of water into the boiler to provide a momentary pulse of steam.
  • the present invention provides an iron whichmay not only be selectively operated in either a continuous steaming mode or in a non-steaming mode, but which may also be operated to produce at will a momentary, large pulse of steam. This is accomplished by exceedingly simple means performing dual functions to obviate proliferation of parts with attendant high manufacturing costs. Indeed, the present invention may be manufactured atlittle increase in cost over a conventional steamdry iron.
  • FIG. 1 is a perspective view of an iron embodying the present invention
  • FIG. 2 is an enlarged, fragmentary sectional view generally corresponding to line 2-2 of FIG. I and illustrating a preferred embodiment of the invention
  • FIG. 3 is an enlarged, fragmentary view of certain details seen in FIG. 2,
  • FIG. 4 is a sectional view generally corresponding to the line 4-4 of FIG. 2,
  • FIG. 5 is an enlarged, exploded perspective view of the details seen in FIG. 3,
  • FIGS. 6 and 7 are views similar to FIG. 2 but showing certain parts in other positions.
  • FIG. 8 is an enlarged, still more fragmentary view, similar to FIG. 2, but of another embodiment of the invention.
  • FIGS. 1, 2, 3 and 4 there is shown an electrically heated, steam-dry iron having the usual soleplate 10, a cover shell 12, and a manipulating handle 14. Any convenient means (not shown), usually one or more fastening screws, may retain the soleplate, the shell and the handle together.
  • a control knob may operate a conventional thermostatic switch (not shown) within the cover shell for controlling energization of the iron.
  • a tank or reservoir 16 Disposed within the cover shell 12 and adjacent the soleplate is a tank or reservoir 16 adapted to contain a supply of water which is to be vaporized to form steam.
  • the soleplate 10 may be of the usual type, normally being formed of cast aluminum in which is embedded the usual metallic sheathed, electric resistance heating element 18.
  • a recess or pocket 20 which constitutes a steam generating chamber as will later appear and also formed in the soleplateare one or more passages 22 in communication with the steam generating chamber 20.
  • steam exhaust openings 24 are formed in the soleplate and lead from its underside to the passages 22.
  • the chamber 20 and the passages 22 are usually cast into the upper surface of the soleplate and, at a later stage of manufacture, a cover plate 26 is afi'ixed to the top of the soleplate to form a top wall for the chamber and the passages.
  • energization of the element 18 and thus the temperature of the soleplate 10 may be controlled by a suitable thermostat such as disclosed in US. Pat. No. 2,724,198, issued to J. E. Vance on an ap plication filed Dec. 24, 1952, and assigned to the same assignee as the instant case.
  • a suitable thermostat such as disclosed in US. Pat. No. 2,724,198, issued to J. E. Vance on an ap plication filed Dec. 24, 1952, and assigned to the same assignee as the instant case.
  • Such thermostat may be adjusted as required by the previously mentioned control knob 15.
  • a fitting 30 Suitably secured in an opening in the lower wall 28 of the water reservoir 16 is a fitting 30 having a main body portion 32 and a depending shank portion 34. As herein illustrated, the upper part of the main body portion 32 of the fitting is turned radially outwardly at 36 to effect a permanent, leak-proof connection between the fitting and the reservoir.
  • the main body portion 32 of the fitting is adapted to rest upon the soleplate cover plate 26 thus forming a spacer between such cover.
  • sleeve 40 Structurally integrated with the fitting 30 is an upstanding sleeve 40 presently formed of a suitable plastic.
  • sleeve 40 forms an upright cylinder and may be assembled with the fitting by means of a press-fit within an upwardly directed recess 42 in the fitting.
  • part of the fitting adjacent the mouth of recess 42 may be upset radially inwardly into an annular groove 44 formed in the periphery of the sleeve 40.
  • An orifice 46 is formed in the fitting 30 and establishes communication between the steam generating chamber 20 and the interior of the sleeve 40.
  • slots 48 which extend from the upper sleeve end to the top of the fitting.
  • the lower ends of slots 48 are thus at substantially the level of the reservoir lower wall 28 for an important reason to appear.
  • a piston 50 to which is secured an upstanding piston rod 52.
  • the latter may have an annular groove in which a resilient O ring 54 is seated.
  • Piston rod 52 projects upwardly through an enlarged bore 56 formed in a forward support leg 58 of the handle and into an upwardly facing recess 60 formed in the forward portion of the handle.
  • Forward support leg 58 of the handle is shouldered to seat upon the cover shell 12 and has a lower portion 62 projecting downwardly into the reservoir 16 through an opening in its upper wall.
  • a gasket 64 preferably forms a watertight seal between the handle forward leg and the reservoir.
  • a forward extension 66 of the bore 56 is formed in the handle forward leg 58 to permit filling of the reservoir with water.
  • a cover plate 68 overlies the handle recess 60, being suitably secured in position as by a screw 70.
  • a button 72 Projecting upwardly through an aperture in the cover plate 68 is a button 72 having opposed, outwardly extending shoulders 74 (see FIG. 4) engageable beneath the cover plate 68 to limit upper projection of the button.
  • the previously mentioned piston rod 52 has its upper end bottomed in an enlarged recess 76 in the underside of the button 72 and a coil spring 78 encircles the piston rod and is interposed between the handle and a shoulder formed by a snap ring 80 secured to the piston rod to bias the latter and thus its attached piston and the button 72 toward the position of parts seen in FIGS. 2 and 4.
  • button 72 provides a rearwardly directed, upwardly facing shoulder 82.
  • piston 50 With the button 72 positioned as above described and as illustrated in FIG. 6, piston 50 will have been lowered sufficiently that its seal 54 will be beneath the lower ends of the sleeve slots 48 to interrupt flow of water therethrough from the reservoir to the interior of the sleeve beneath the piston. With water flow into the sleeve thus interrupted, water cannot gravitate from the sleeve through the orifice 46 into the steam generating chamber 20 and therefore steam generation will terminate even though water is trapped within the sleeve beneath the piston.
  • a momentary large pulse of steam may be provided, if desired, by momentarily depressing the button 72 to the position of FIG. 7 and then allowing it to return to the position of FIG. 2.
  • the lower portion of fitting 30a is provided with a bore 84 of a size to closely but slidably receive the piston 50a in sealing relation while the upper portion of the fitting is provided with a larger bore 86 to loosely receive the piston.
  • Piston 50a is shown in FIG. 8 to be in its uppermost position which corresponds to the position of piston 50 in FIGS. 2 and 3.
  • water may flow from the reservoir 16a into the lower portion of the fitting beneath the piston 50a by virtue of the loose fit between the piston and the upper fitting bore 86. Water will gravitate through the orifice 46a into the steam generating chamber a for continuous steam generation as previously described in connection with FIGS. 2 and 3.
  • a steam-dry iron having an electrically heated soleplate and a water reservoir above said soleplate, such soleplate having a steam generating chamber as well as openings in its underside in communication with said chamber through which steam mayescape
  • the improvement comprising a pump cylinder having an upper portion in communication with said reservoir and a lower portion in communication with said steam generating chamber through an orifice, piston slidable within said cylinder and shiftable between an upper position relative to the latter wherein communication between said reservoir and said orifice through said cylinder is established and a lower positionrelative to he latter wherein communication between said reservoir and said orifice through said cylinder is interrupted, and means for selectively shifting said piston relative to said cylinder and for selectively maintaining said piston in the positions aforesaid, said means selectively maintaining said piston in its upper position aforesaid to provide for flow of water from said reservoir into said cylinder and consequent gravitation of water through said orifice and into said steam generating chamber to effect continuous steaming at a predetennined normal rate
  • said piston is cooperable with the upper portion of said cylinder in said piston upper position and is cooperable with the lower portion of said cylinder in said piston lower position.
  • said cylinder has transversely extending aperturemeans through which. water may flow from said reservoir into said cylinder beneath said piston when the latter is in .its upper position aforesaid,
  • said cylinder has a transversely extending aperture at substantially the level of said reservoir wall to provide for gravitation of substantially all water within said reservoir into said cylinder.
  • control member comprises a button vertically slidable in said handle
  • said button is provided with vertically shaped shoulders engageable with said handle for locating said button in predetermined positions corresponding to said piston upper and lower positions aforesaid.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Manufacture Of Iron (AREA)
US104252A 1971-01-06 1971-01-06 Steam-dry iron Expired - Lifetime US3703777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10425271A 1971-01-06 1971-01-06

Publications (1)

Publication Number Publication Date
US3703777A true US3703777A (en) 1972-11-28

Family

ID=22299434

Family Applications (1)

Application Number Title Priority Date Filing Date
US104252A Expired - Lifetime US3703777A (en) 1971-01-06 1971-01-06 Steam-dry iron

Country Status (11)

Country Link
US (1) US3703777A (enrdf_load_stackoverflow)
AU (1) AU470141B2 (enrdf_load_stackoverflow)
BR (1) BR7107061D0 (enrdf_load_stackoverflow)
CA (1) CA943054A (enrdf_load_stackoverflow)
DE (1) DE2200470A1 (enrdf_load_stackoverflow)
ES (1) ES398622A1 (enrdf_load_stackoverflow)
FR (1) FR2121616B1 (enrdf_load_stackoverflow)
GB (1) GB1368155A (enrdf_load_stackoverflow)
NL (1) NL7200065A (enrdf_load_stackoverflow)
TR (1) TR18807A (enrdf_load_stackoverflow)
ZA (1) ZA7289B (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889406A (en) * 1974-10-07 1975-06-17 Hoover Co Steam iron water valve and manual operating mechanism therefor
US3986282A (en) * 1975-04-28 1976-10-19 General Electric Company Steam iron
US4016663A (en) * 1976-05-21 1977-04-12 Sunbeam Corporation Electric pressing iron
JPS53143795A (en) * 1977-05-06 1978-12-14 Matsushita Electric Ind Co Ltd Base for steam iron
US4277900A (en) * 1980-04-04 1981-07-14 General Electric Company Iron steam chamber construction
US4523079A (en) * 1983-09-20 1985-06-11 Black & Decker Inc. Electric iron having electronic control circuit with a power resistor mounted on the soleplate
US4711010A (en) * 1985-05-11 1987-12-08 Rowenta-Werke Gmbh Method of sealing off the vaporization chamber of a steam iron
US5115117A (en) * 1989-11-07 1992-05-19 Moulinex (Societe Anonyme) Steam iron provided with an intermediate vaporization chamber to prevent expulsion of unvaporized water through the steam outlet orifices
FR2841571A1 (fr) * 2002-06-26 2004-01-02 Seb Sa Fer a vapeur comportant une electrovanne active
US20160161108A1 (en) * 2013-07-25 2016-06-09 Koninklijke Philips N.V. Apparatus for generating steam

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542689C3 (de) * 1975-09-25 1984-10-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektrisches Dampf- und Trockenbügeleisen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782537A (en) * 1954-06-29 1957-02-26 Vera-Mege Rafael Steam pressing iron
US3165843A (en) * 1962-05-14 1965-01-19 Mc Graw Edison Co Jet steam iron
US3407522A (en) * 1962-06-19 1968-10-29 Sunbeam Corp Pressing iron

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756196A (fr) * 1969-09-17 1971-03-16 Sunbeam Corp Fer a repasser utilisant la vapeur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782537A (en) * 1954-06-29 1957-02-26 Vera-Mege Rafael Steam pressing iron
US3165843A (en) * 1962-05-14 1965-01-19 Mc Graw Edison Co Jet steam iron
US3407522A (en) * 1962-06-19 1968-10-29 Sunbeam Corp Pressing iron

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889406A (en) * 1974-10-07 1975-06-17 Hoover Co Steam iron water valve and manual operating mechanism therefor
US3986282A (en) * 1975-04-28 1976-10-19 General Electric Company Steam iron
US4016663A (en) * 1976-05-21 1977-04-12 Sunbeam Corporation Electric pressing iron
JPS53143795A (en) * 1977-05-06 1978-12-14 Matsushita Electric Ind Co Ltd Base for steam iron
US4277900A (en) * 1980-04-04 1981-07-14 General Electric Company Iron steam chamber construction
US4523079A (en) * 1983-09-20 1985-06-11 Black & Decker Inc. Electric iron having electronic control circuit with a power resistor mounted on the soleplate
US4711010A (en) * 1985-05-11 1987-12-08 Rowenta-Werke Gmbh Method of sealing off the vaporization chamber of a steam iron
US5115117A (en) * 1989-11-07 1992-05-19 Moulinex (Societe Anonyme) Steam iron provided with an intermediate vaporization chamber to prevent expulsion of unvaporized water through the steam outlet orifices
FR2841571A1 (fr) * 2002-06-26 2004-01-02 Seb Sa Fer a vapeur comportant une electrovanne active
US20160161108A1 (en) * 2013-07-25 2016-06-09 Koninklijke Philips N.V. Apparatus for generating steam
US20160161107A1 (en) * 2013-07-25 2016-06-09 Koninklijke Philips N.V. Apparatus for generating steam
US10234134B2 (en) * 2013-07-25 2019-03-19 Koninklijke Philips N.V. Apparatus for generating steam
US10422521B2 (en) * 2013-07-25 2019-09-24 Koninklijke Philips N.V. Apparatus for generating system

Also Published As

Publication number Publication date
AU470141B2 (en) 1976-03-04
FR2121616B1 (enrdf_load_stackoverflow) 1976-01-16
GB1368155A (en) 1974-09-25
FR2121616A1 (enrdf_load_stackoverflow) 1972-08-25
AU3762672A (en) 1973-07-12
NL7200065A (enrdf_load_stackoverflow) 1972-07-10
ZA7289B (en) 1973-08-29
TR18807A (tr) 1977-11-01
CA943054A (en) 1974-03-05
ES398622A1 (es) 1975-05-16
DE2200470A1 (de) 1972-07-20
BR7107061D0 (pt) 1973-07-03

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