US3635405A - Aerator construction - Google Patents

Aerator construction Download PDF

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Publication number
US3635405A
US3635405A US87075A US3635405DA US3635405A US 3635405 A US3635405 A US 3635405A US 87075 A US87075 A US 87075A US 3635405D A US3635405D A US 3635405DA US 3635405 A US3635405 A US 3635405A
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United States
Prior art keywords
downstream
upstream
molded
annular ring
inner annular
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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
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US87075A
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English (en)
Inventor
Sidney J Shames
Harold Shames
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MELARD ACQUISITION Inc
Melard Manufacturing Corp
SIDNEY J SHAMES
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Individual
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Assigned to MELARD MANUFACTURING CORPORATION reassignment MELARD MANUFACTURING CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHAMES, HAROLD, SHAMES, SIDNEY J.
Assigned to MELARD ACQUISITION, INC. reassignment MELARD ACQUISITION, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MELARD MANUFACTURING CORPORATION
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084—Jet regulators with aerating means

Definitions

  • An inexpensive faucet aerator is provided by three molded parts and a thin metal cup that holds two of the molded parts in assembled relationship.
  • the first molded part is an elongated annulus provided with upstream and downstream recesses separated by an inner ring that helps to break up the liquid flow and serves as an abutment to support a second molded, jet-forming, part in the upstream recess and is arranged to be engaged by the third, molded, part located in the downstream recess and aiding in defining air intake means to the aerator.
  • V 10 Claims, 8 Drawing Figures AERA'IOR consraucrron BACKGROUND OF THE INVENTION Faucet aerators of many different forms are known in the prior art.
  • water-jet forming means of one or more nozzles located at one or more upstream locations, discharge water at high speed into a mixing chamber into which air is ingested by the local drop in static pressure.
  • Means for mixing the water and air are provided, and screenlike flow straightening and mixing means may be provided at the discharge end of the mixing chamber.
  • an abutment is provided against which the jets are impinged to effect minute break up of the water jets prior to mixing with air.
  • air is drawn into the mixing chamber through air passageways that extend from adjacent the outlet of the aerator in a direction opposite to the direction of waterflow before entering the mixing chamber and then moving downstream with the mixture of water and air.
  • a further object of this invention is to provide a water aerator that is primarily constructed of molded plastic parts that are clamped together in assembled relation by a thinwalled metal sleeve that also serves as the exterior casing of the aerator.
  • FIG. I is an illustrative perspective view of a typical water faucet provided with a water aerator embodying the invention
  • FIG. 2 is a greatly enlarged vertical cross-sectional view through the aerator of FIG. 1 and is taken substantially on line 2-2 of FIG. 1;
  • FIG. 3 is a bottom plan view of the aerator of FIG. 2;
  • FIG. 4 is a fragmentary top plan view taken substantially on line 4--4 of FIG. 2;
  • FIG. 5 is an exploded view of the parts of the aerator shown in FIG. 2;
  • FIG. 6 is a view similar to FIG. 2 but showing a modified form of construction utilizing a female-threaded upstream coupling as contrasted to the male-threaded upstream coupling shown in FIG. 2;
  • FIG. 7 is a view similar to FIG. 2 but showing another modified form of construction.
  • FIG. 8 is a view similar to FIG. 5 showing an exploded perspective view of the parts of the aerator shown in FIG. 7.
  • spout 10 of faucet F is provided with an aerator l2 embodying the instant invention.
  • the spout 10 as shown in FIG. 2, is female threaded at 14 and is provided with a seal seat 16 spaced upstream of the spouts lower terminus 18.
  • the aerator 12 as best seen in exploded view of FIG. 5 in addition to an upstream resilient seal washer 20 and a downstream screen 22 at the discharge end of the mixing chamber of the aerator, includes only four parts, three of which are the internal parts of the aerator and are molded of plastic, and the fourth being a thin cup-shaped sleeve of a relatively deformable metal, such as brass or aluminum.
  • the molded parts formed of substantially nonwater-absorbing plastic such as Delrin, include: an axially elongated annular member 24; a jet-forming, cup-shaped member 26; and a support-and-air-intake member 28.
  • the metal sleeve is indicated at 30 and has a lower inturned flange, or lip, 31.
  • the axially elongated annulus 24 is the major structural element of the aerator and has an upstream annular portion 32 surrounding an upstream recess 33, and a downstream annular portion 34 surrounding a recess 35, with said recesses separated by an inner ring 36 that is integral with part 24.
  • the exterior of said upstream portion 32 is provided with male threads 38 for screw connection to spout 10.
  • the interior of said portion 32 is provided with: an annular retainer wall 40 for engaging the wall of seal washer 20; an annular shoulder 42 for seating seal washer 20; centering sleeve 44 for receiving and centering member 26; and an upstream, convex, impingement surface '46 on ring '36 curving inwardly and downstream to an innermost annular edge 48.
  • annular lower side 50 of inner ring 36 Within the downstream recess 35, moving downstream, there are: the annular lower side 50 of inner ring 36, said side 50 extending radially outwardly of annular edge 48; a frustoconical surface 52 that slopes downwardly andoutwardly; and a cylindrical inner wall 54.
  • the exterior surface of member 24 below male threads 38 provides: an upwardly facing annular shoulder 56 spaced below the terminus 18 of the spout; an upper, upwardly and inwardly inclined, frustoconical surface 58 for receiving and seating a portion of metal sleeve 30; a cylindrical intermediate surface 60; and a lower, downwardly and inwardly inclined, frustoconical surface 62 for receiving and seating a portion of metal sleeve 30, as illustrated in FIG. 2.
  • the second molded member 26 is arranged to enter recess 33 of annulus 24 and to be held in operative position by gravity.
  • the member 26 includes an outwardly extending flange 64 which is centered by sleeve 44 and supported on the outermost portion of convex surface 46 of ring 36, with the upper surface of flange 64 located coplanar with shoulder 42 to be engaged by seal washer 20 so as to prevent water leakage past sleeve 44.
  • the sidewall of cup part 26 is provided with a series of spaced jet-forming apertures 66 that are vertically elon gated and terminate at their lower edges in a plane spaced above the downstream terminus of convex surface 46.
  • member 26 projects coaxially through and in spaced relation to innermost annular edge 48, to provide a constricted, annular, flow aperture 68 between adjacent spaced portions of member 26 and inner ring 36, with annular aperture 68 separating an upstream annular flow passageway 70 from the downstream mixing chamber 72 located substantially in the lower recess 35 between lower side 50 and screen 22.
  • the lowermost wall 74 of member 26 is located downstream of side 50.
  • the third molded member 28 is arranged to slidably enter downstream recess 55 of annulus 24 and to abut under side 50 of inner ring 36,
  • Member 28 includes an annular sleeve, or ring, 76 having an inturned flange 78 at the lower edge and provided on the outer surface with a plurality of axially elongated spacers 80 whose lower ends abut flange 31 of sleeve 30 and whose upper ends extend above sleeve 76 to engage ring 36.
  • the exterior shape of each spacer 80 includes a lower cylindrical edge 82 and an upper frustoconical edge 84 for complementary mating with inner walls 54 and 52 respectively.
  • the spacers locate sleeve 76 spaced from wall 54 to provide substantially annular air intake means 77 that extend upwardly from the outlet end of aerator and pass over the edge of sleeve 76, that is spaced below ring 36, and enter mixing chamber 72.
  • the metal sleeve 30 when deformed, by spinning or swedging, to the final assembled condition includes the intumed lower retainer flange 31 and spaced frustoconical sections 86 and 88 seatingly cooperating with oppositely directed frustoconical surfaces 58 and 62 on part 24.
  • the foregoing construction provides for simple subassembly by first positioning screen 22 on flange 78 of member 28 and then entering third member 28 into downstream recess 55 and then applying metal sleeve 30. After spinning, or otherwise deforming, portions of the sleeve 30 to engage surfaces 58 and 62, the parts will be held in assembled relation with lip 31 holding member 28 against ring 36. Then cup-shaped member 26 and seal 20 may be entered into the upstream recess 33 to complete the assembly.
  • slots 66 are directed outwardly to impinge against convex surface 46 to be broken up in chamber 70 and to pass downstream through annular aperture 68 to enter mixing chamber 72 wherein the water particles mix with air ingested through air intake means 77 and then pass through one or more screen 22 to issue from aerator 12 as a coherent jet of aerated water.
  • sleeve 30 The thickness of material of sleeve 30 is nominal to permit of ready deformation from cylindrical shape to the condition seen in FIG. 2, but at the same time sleeve 30 provides sufficient strength to hold the parts 24 and 28 in assembled condition and resist separation.
  • FIG. 6 The form of aerator in FIG. 6 is substantially the same as in FIGS. 2-5 except that while molded part 24 in FIGS. 2-5 provides a male thread 38, the first molded part 24 in FIG. 6 is axially elongated and provided with a female thread 38 for cooperation with a male-threaded spout 10'.
  • the axial length of metal sleeve 30 is also elongated and extends the entire length of part 24', where in FIGS. 2-5, only the lower portion of part 24 that is below the portion that enters spout 10 is encased by metal part 10.
  • FIGS. 7 and 8 In the modified form of aerator shown in FIGS. 7 and 8, corresponding parts carry the same number with the addition of a double prime mark.
  • the principal changes in the device of FIGS. 7-8 as compared with the device of FIGS. 2-5 are that in FIGS. 78 the first molded part 24" is axially shortened to eliminate the downstream sleeve that surrounds the third molded part, and the shape of the cup-bottom of the second molded part is elongated downstream and stepped to assist in providing desired mixing and flow characteristics.
  • FIGS. 78 the first molded part 24" is axially shortened to eliminate the downstream sleeve that surrounds the third molded part, and the shape of the cup-bottom of the second molded part is elongated downstream and stepped to assist in providing desired mixing and flow characteristics.
  • the downstream part 28" provides that the outer surfaces 82" of the spacers 80" serve as the sole abutment for the inner wall of the cylindrical portion of metal sleeve 30" and the upper edges of spacers 80" engage the lower side 51 of first part 24" which is spaced below underside 50" of inner ring 36".
  • the bottom 74" of cup-shaped member 26" provides a first annular part 74a that extends downstream to at least below the level of side 51, and a depressed center portion 74b that extends axially downstream into mixing chamber 72" to a level downstream of the level of the upstream edge of sleeve 76".
  • the size of lip 31 on the sleeve 30 and the radial thickness of the spacers 8! is so selected that the outer diameter of sleeve 76 is spaced inwardly of the inner edge of lip 31, to provide an airgap to the air intake means 77.
  • the arrangement of the convexly curved impingement surface 46, surrounding and spaced from the upright sidewall of part 26 having elongated apertures 66 therein which terminate at their lower ends at a plane upstream of the downstream terminus of convex surface 46, desirably produces an unusual impingement pattern for the water by first directing the water in jet form outwardly against the convex impingement surface 46 where there is a first breaking up of the jets and the fragmented flow is then reflected back against the portion of said annular upright wall of part 26 below apertures 66 before the water finally passes downstream through the annular, constricted, flow aperture 68 to enter mixing chamber 72.
  • the flange 64 surrounding the upper ends of apertures 66 cooperates with the lower edges of apertures 66 to define and limit the operative flow size of each aperture 66, thus permitting the upstream face of each aperture 66 to be somewhat blocked, such as by waterborne matter, without reducing the volume passed through the apertures.
  • a faucet aerator of the type that provides a mixing chamber having upstream and downstream ends, water-jet defining means at the upstream end of said chamber, air intake means to said chamber, and at least one screen adjacent the downstream end of said chamber, the improvement comprising, in combination: three annular molded parts, a first of said molded parts being axially elongated and having integral therewith an inner annular ring located between the ends of the part to provide spaced upstream and downstream recesses, the second molded part being of a size and shape to aid in providing water-jets and to enter the upstream recess and to be retained therein in operative position by gravity, the third molded part being of a size and shape to aid in defining the air intake and to support a screen and to enter the downstream recess to abut a portion of said inner annular ring, and an elongated annulus of metal with an intumed flange at one end arranged to surround the first said part with said flange engaging the third part and with the other
  • first molded part with an integral inner annular ring is provided with a sleevelike centering section immediately upstream of the annular ring and an annular shoulder spaced upstream of the annular ring and bounding the upstream end of the centering section, and the second molded part having an out-turned flange of a size to slide fit into the sleevelike centering section, and to have the upstream side thereof coplanar with said annular shoulder so that said coplanar surfaces are adapted to provide a seat for a sealing washer.
  • inner annular ring on the first molded part provides an upstream surface that curves downstream moving radially inwardly and terminates at an innermost edge
  • the second molded part being cupshaped with an out-turned flange engaging the upstream side of the inner annular ring, a series of spaced apertures in the sidewall of the cup-shaped part located upstream of the innermost edge of the inner annular ring, and the portion of the cup-shaped part downstream of the apertures extending in spaced relation concentrically of and downstream past the innermost edge of the inner annular ring to provide a constricted annular flow passageway through which water enters the mixing chamber.
  • the portion of the first molded member that bounds the downstream recess provides a cylindrical wall
  • the third molded member including a cylindrical sleeve element spaced concentrically inwardly of the said cylindrical wall of the first member and spaced from the downstream side of the inner annular ring to define an airflow passageways, and a plurality of spacer ribs integral with the cylindrical sleeve and of greater axial length than the sleeve and extending outwardly of the sleeve, said ribs being adapted to engage the downstream side of the inner annular ring and the inner cylindrical wall of the first molded part to provide proper interfitting of the members.
  • first molded member provides a section of outer periphery, spaced upstream of the downstream end of said member, that tapers frustoconically inwardly to provide a retainer means for the metal annulus that is adapted to have a section of the metal annulus forced inwardly thereagainst after telescoping of the metal annulus onto the first molded member.
  • a faucet aerator of the type that provides a mixing chamber having upstream and downstream ends, water-jet defining means at the upstream end of said chamber, air intake means to said chamber, and at least one screen adjacent the downstream end of said chamber, the improvement comprising, in combination: three annular molded parts, a first of said molded parts being axially elongated and having integral therewith an inner annular ring with an impingement surface thereon located between the ends of the part, the second molded part being of a size and shape to aid in providing water-jets and to enter a recess defined in the first molded part upstream of the inner annular ring and to be supported by said annular ring in operative position by gravity, the third molded part being of a size and shape to aid in defining the air intake and to support a screen, said third molded part being positioned to abut said first molded part downstream of the impingement surface of the inner annular ring, and an elongated annulus of metal with an intumed
  • a liquid aerator of the type that provides means for breaking up liquid jets to effect a mixing of liquid with air before the mixture issues from the aerator comprising, in combination: an annular outer member providing thereon an innermost ring with a convex impingement surface on said ring curving radially inwardly and downstream to an innermost annular edge; a jet-forming means including an annular upright wall positioned concentrically of said annular outer member and spaced inwardly of said innermost annular edge to provide between said upright wall and said innermost edge a constructed downstream annular passageway through which liquid is discharged in noncoherent form for mixing with air ingested into the aerator, said jet-forming means including a plurality of axially elongated slots through said upright wall, the lower edge of said slots terminating at a point spaced upstream of the innermost annular edge, whereby liquid flow through said slots operates to direct jets of liquid outwardly against said convex impingement surface to be

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Domestic Plumbing Installations (AREA)
  • Filtration Of Liquid (AREA)
US87075A 1970-11-05 1970-11-05 Aerator construction Expired - Lifetime US3635405A (en)

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US8707570A 1970-11-05 1970-11-05

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JP (1) JPS5227934B1 (enrdf_load_stackoverflow)
GB (1) GB1375397A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827636A (en) * 1973-02-15 1974-08-06 American Standard Inc Substantially leakless aerator
US4153204A (en) * 1975-08-08 1979-05-08 Aghnides Elie P Aerator with metal casing having inner plastic elements moldable in one piece
US4534513A (en) * 1983-01-13 1985-08-13 Aghnides Elie P Concealed aerator
US4534514A (en) * 1983-01-13 1985-08-13 Aghnides Elie P Concealed aerator which seals against a spout when inserted therein
AT396697B (de) * 1991-03-14 1993-11-25 Ideal Standard Durchflussdrossel
US6513731B2 (en) 2001-01-02 2003-02-04 Moen Incorporated Aerator with variable air input
US6631737B1 (en) * 1998-11-19 2003-10-14 Cornelis Maria Kipping Flow limiter
US20040089597A1 (en) * 2002-11-13 2004-05-13 Ming-Yuan Hsu Water filtering device for a faucet
US20050005774A1 (en) * 2003-05-13 2005-01-13 Severin Elektrogerate Gmbh Holder for coffee pod
US20050268639A1 (en) * 2004-06-04 2005-12-08 Hortin Gregory G Variable flow water dispenser for refrigerator freezers
US20060163386A1 (en) * 2002-10-22 2006-07-27 Christoph Weis Plumbing outlet fitting
WO2009158497A1 (en) * 2008-06-25 2009-12-30 Masco Corporation Of Indiana Centerset faucet with mountable spout
USD668743S1 (en) * 2011-11-04 2012-10-09 Niagara Conservation Corp. Kitchen aerator
US8739826B2 (en) 2011-03-11 2014-06-03 Masco Corporation Of Indiana Centerset faucet body and method of making same
US8919680B2 (en) 2002-10-22 2014-12-30 Neoperl Gmbh Functional plumbing unit
US8931500B2 (en) 2012-02-17 2015-01-13 Masco Corporation Of Indiana Two handle centerset faucet
US11591780B2 (en) * 2020-04-15 2023-02-28 Yeuu Deng Sanitary Facilities Industrial Co., Ltd. Faucet aerator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0737425U (ja) * 1992-11-05 1995-07-11 一 丸山 板材の曲折器具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633343A (en) * 1948-12-02 1953-03-31 Elie P Aghnides Gas and liquid mixing device
US2717614A (en) * 1953-04-15 1955-09-13 George N Palivos Fluid mixer
US2849217A (en) * 1954-08-13 1958-08-26 Chicago Specialty Mfg Co Aerators
US2998930A (en) * 1957-10-14 1961-09-05 Elie P Aghnides Water aerator diaphragms
US3010659A (en) * 1959-10-27 1961-11-28 Wrightway Engineering Co Aerating device
US3141619A (en) * 1961-11-16 1964-07-21 Wrightway Engineering Co Aerating device
US3363841A (en) * 1962-01-31 1968-01-16 Elie P. Aghnides Molded water aerators

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633343A (en) * 1948-12-02 1953-03-31 Elie P Aghnides Gas and liquid mixing device
US2717614A (en) * 1953-04-15 1955-09-13 George N Palivos Fluid mixer
US2849217A (en) * 1954-08-13 1958-08-26 Chicago Specialty Mfg Co Aerators
US2998930A (en) * 1957-10-14 1961-09-05 Elie P Aghnides Water aerator diaphragms
US3010659A (en) * 1959-10-27 1961-11-28 Wrightway Engineering Co Aerating device
US3141619A (en) * 1961-11-16 1964-07-21 Wrightway Engineering Co Aerating device
US3363841A (en) * 1962-01-31 1968-01-16 Elie P. Aghnides Molded water aerators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Advertising Sheet on Bubble Stream Aerator, Mar. 3, 1964, *

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827636A (en) * 1973-02-15 1974-08-06 American Standard Inc Substantially leakless aerator
US4153204A (en) * 1975-08-08 1979-05-08 Aghnides Elie P Aerator with metal casing having inner plastic elements moldable in one piece
US4534513A (en) * 1983-01-13 1985-08-13 Aghnides Elie P Concealed aerator
US4534514A (en) * 1983-01-13 1985-08-13 Aghnides Elie P Concealed aerator which seals against a spout when inserted therein
AT396697B (de) * 1991-03-14 1993-11-25 Ideal Standard Durchflussdrossel
US5456289A (en) * 1991-03-14 1995-10-10 Ideal-Standard Gmbh Plumbing fixture with passage choke having a knockout
US6631737B1 (en) * 1998-11-19 2003-10-14 Cornelis Maria Kipping Flow limiter
US6513731B2 (en) 2001-01-02 2003-02-04 Moen Incorporated Aerator with variable air input
US20080149743A1 (en) * 2002-10-22 2008-06-26 Neoperl Gmbh Plumbing outlet fixture
US8727239B2 (en) 2002-10-22 2014-05-20 Neoperl Gmbh Plumbing outlet fitting
US20060163386A1 (en) * 2002-10-22 2006-07-27 Christoph Weis Plumbing outlet fitting
US8991728B2 (en) * 2002-10-22 2015-03-31 Neoperl Gmbh Plumbing outlet fixture
US8919680B2 (en) 2002-10-22 2014-12-30 Neoperl Gmbh Functional plumbing unit
US20040089597A1 (en) * 2002-11-13 2004-05-13 Ming-Yuan Hsu Water filtering device for a faucet
US7234390B2 (en) * 2003-05-13 2007-06-26 Severin Elektrogerate Gmbh Holder for coffee pod
US20050005774A1 (en) * 2003-05-13 2005-01-13 Severin Elektrogerate Gmbh Holder for coffee pod
US20050268639A1 (en) * 2004-06-04 2005-12-08 Hortin Gregory G Variable flow water dispenser for refrigerator freezers
US7210601B2 (en) * 2004-06-04 2007-05-01 Whirlpool Corporation Variable flow water dispenser for refrigerator freezers
CN102076599A (zh) * 2008-06-25 2011-05-25 印地安纳马斯科公司 具有可安装喷口的设于中心的龙头
US8695625B2 (en) 2008-06-25 2014-04-15 Masco Corporation Of Indiana Centerset faucet with mountable spout
CN102076599B (zh) * 2008-06-25 2014-10-08 印地安纳马斯科公司 具有可安装喷口的设于中心的龙头
US20110079307A1 (en) * 2008-06-25 2011-04-07 Marty Garry R Centerset Faucet With Mountable Spout
WO2009158497A1 (en) * 2008-06-25 2009-12-30 Masco Corporation Of Indiana Centerset faucet with mountable spout
US8739826B2 (en) 2011-03-11 2014-06-03 Masco Corporation Of Indiana Centerset faucet body and method of making same
US9403304B2 (en) 2011-03-11 2016-08-02 Delta Faucet Company Centerset faucet body and method of making same
USD668743S1 (en) * 2011-11-04 2012-10-09 Niagara Conservation Corp. Kitchen aerator
US8931500B2 (en) 2012-02-17 2015-01-13 Masco Corporation Of Indiana Two handle centerset faucet
US11591780B2 (en) * 2020-04-15 2023-02-28 Yeuu Deng Sanitary Facilities Industrial Co., Ltd. Faucet aerator

Also Published As

Publication number Publication date
JPS5227934B1 (enrdf_load_stackoverflow) 1977-07-23
GB1375397A (enrdf_load_stackoverflow) 1974-11-27
DE2154789A1 (de) 1972-05-18
DE2154789B2 (de) 1977-04-14

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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHAMES, HAROLD;SHAMES, SIDNEY J.;REEL/FRAME:006946/0739

Effective date: 19940228

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Owner name: MELARD ACQUISITION, INC., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MELARD MANUFACTURING CORPORATION;REEL/FRAME:007030/0928

Effective date: 19940228