US3651956A - Air flotation table conveyor - Google Patents

Air flotation table conveyor Download PDF

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Publication number
US3651956A
US3651956A US55404A US3651956DA US3651956A US 3651956 A US3651956 A US 3651956A US 55404 A US55404 A US 55404A US 3651956D A US3651956D A US 3651956DA US 3651956 A US3651956 A US 3651956A
Authority
US
United States
Prior art keywords
enclosure
article
air
air flotation
under pressure
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
US55404A
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English (en)
Inventor
Andrew T Kornylak
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
Application granted granted Critical
Publication of US3651956A publication Critical patent/US3651956A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
    • B65G51/02—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases
    • B65G51/03—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases over a flat surface or in troughs

Definitions

  • ABSTRACT A conveyor for floating an article by air under pressure to provide for ease of movement.
  • An enclosure is provided with a plurality of valves in the upper surface for engagement by the article to release air under pressure from the enclosure to substantially float the article on a layer of air.
  • the enclosure is filled with a rigid open cell porous material to provide structural strength and rigidity for the hollow structure.
  • a conveyor of this nature is disclosed in the US. Pat. to Lamb No. 2,3 l5,627 and comprises a chamber connected to a source of air pressure. The air is allowed to escape under the article being conveyed to aid in easing the movement of the article in traversing the table.
  • the table In order to efiiciently support the load it is essential that the table have sufficient structural strength and rigidity to maintain its shape and to prevent the excessive loss of air. It is therefore an object of this invention to provide a table as aforesaid which is light and has high structural strength.
  • FIG. 1 is a perspective view of a section of the table.
  • FIG. 2 is a section taken on the line 22 of FIG. 1.
  • an airtight enclosure is filled with a porous open cell core and is connected to a source of fluid pressure.
  • a plurality of valves are fitted in the top surface of the chamber and are adapted to be opened by the weight of the article being conveyed to allow the air to escape and form a pressured layer to support the article.
  • an enclosure E having a top wall 2 and a bottom wall 4 connected by a peripheral wall 8.
  • the top wall is formed with a plurality of ports distributed throughout the extent of the wall. Each port has a valve V press fitted therein for engagement by an article A mounted thereon.
  • Each valve comprises a casing 12 having an intumed ledge 14 at the bottom and an inturned lip 16 at the top.
  • a ball 18 is loosely mounted in the casing and is urged into contact with the lip by a spring 20 to form a valve closure.
  • the interior of the closure is filled by a rigid porous material such as urethane foam.
  • This material is sufficiently rigid to reenforce the hollow closure to obtain strength and rigidity without the use of metal reenforcements or bracing and still permit the use of thin plates for the device.
  • the open cell structure allows the air to permeate the chamber and flow toward the valves.
  • a selected number of enclosures are supported on structural members such as indicated at S to form a conveyor of desired dimensions.
  • the articles being conveyed press on the balls 18 to permit the escape of the pressurized fluid such as air.
  • the pressure of the fluid between the bottom of the article and top of the enclosure forms a pressurized zone for supporting the article on a layer of air thus providing ease of movement for the article.
  • An air flotation table along which an article is movable comprising, a relatively thin-walled fluid-tight enclosure having top, side and bottom walls, means for structurally reenforcing and rigidifying said enclosure comprising, a rigid porous open cell material and substantially filling the enclosure between its walls, means for admitting fluid under pressure into the enclosure, and valve means extending through the top wall for engagement with the article for exhausting fluid permeating the material from the said enclosure.
  • valve means comprises a plurality of ports distributed throughout the top surface and a valve in each port.
  • porous material comprises a rigid urethane foam.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
US55404A 1970-07-16 1970-07-16 Air flotation table conveyor Expired - Lifetime US3651956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5540470A 1970-07-16 1970-07-16

Publications (1)

Publication Number Publication Date
US3651956A true US3651956A (en) 1972-03-28

Family

ID=21997574

Family Applications (1)

Application Number Title Priority Date Filing Date
US55404A Expired - Lifetime US3651956A (en) 1970-07-16 1970-07-16 Air flotation table conveyor

Country Status (10)

Country Link
US (1) US3651956A (enrdf_load_stackoverflow)
JP (1) JPS5122710B1 (enrdf_load_stackoverflow)
BE (1) BE769995A (enrdf_load_stackoverflow)
CA (1) CA936500A (enrdf_load_stackoverflow)
DE (1) DE2134512A1 (enrdf_load_stackoverflow)
FR (1) FR2098463B1 (enrdf_load_stackoverflow)
GB (1) GB1297727A (enrdf_load_stackoverflow)
NL (1) NL7109215A (enrdf_load_stackoverflow)
SE (1) SE366524B (enrdf_load_stackoverflow)
ZA (1) ZA713367B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179106A (en) * 1976-05-10 1979-12-18 Bergman Raymond A Apparatus for locating and clamping a work member supporting fixture
US20070181735A1 (en) * 2004-04-20 2007-08-09 Airglide Technologies Ag Bearing provided with a carrier surface for moving a platform on an air cushion
US7597185B1 (en) 2007-10-29 2009-10-06 Mantissa Corporation Conveyor and air film chute
US20110222972A1 (en) * 2010-03-10 2011-09-15 David Patrick Erceg Segmented conveyor and air film chute

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04350023A (ja) * 1990-08-08 1992-12-04 Mitsubishi Heavy Ind Ltd 搬送装置及び搬送用パレット
DE202009007057U1 (de) * 2009-05-15 2010-09-30 Wilhelm Altendorf Gmbh & Co. Kg Luftkissentisch
DE102009048844A1 (de) * 2009-10-09 2011-04-14 Jungheinrich Aktiengesellschaft Flurförderzeug mit seitlichem Aufnahmeraum für eine Batterie
DE102012101798A1 (de) * 2012-03-02 2013-09-05 Perfecta Schneidemaschinenwerk Gmbh Bautzen Verfahren und Anordnung zum Transportieren von Material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073651A (en) * 1959-08-17 1963-01-15 Polysius Gmbh Pneumatic floors for containers and troughs
US3209929A (en) * 1960-12-23 1965-10-05 Douglas Aircraft Co Inc Air operated cargo loading system
US3232366A (en) * 1961-06-13 1966-02-01 Hovercraft Dev Ltd Ground effect machine with permeable material support member
US3415478A (en) * 1967-01-27 1968-12-10 Ealing Corp Air table
US3430780A (en) * 1967-06-28 1969-03-04 Clark Equipment Co Inflatable material moving device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR29381E (fr) * 1924-06-25 1925-07-25 Système de réglage automatique permettant de réaliser le fonctionnement en synchronisme du cinématographe et du phonographe ainsi que de tous les appareils et machines qui exigent un régime de vitesse constant
FR1243371A (fr) * 1959-08-17 1960-10-07 Polysius Gmbh Dispositif installé sur des fonds pneumatiques de récipients ou de gouttières pour la protection du système d'aération vis-à-vis d'une obstruction lors de rupturesd'un ou de certains milieux poreux, par exemple de plaques
US3231312A (en) * 1962-04-05 1966-01-25 Granu Flow Equipment Ltd Fluidizing mat for containers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073651A (en) * 1959-08-17 1963-01-15 Polysius Gmbh Pneumatic floors for containers and troughs
US3209929A (en) * 1960-12-23 1965-10-05 Douglas Aircraft Co Inc Air operated cargo loading system
US3232366A (en) * 1961-06-13 1966-02-01 Hovercraft Dev Ltd Ground effect machine with permeable material support member
US3415478A (en) * 1967-01-27 1968-12-10 Ealing Corp Air table
US3430780A (en) * 1967-06-28 1969-03-04 Clark Equipment Co Inflatable material moving device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179106A (en) * 1976-05-10 1979-12-18 Bergman Raymond A Apparatus for locating and clamping a work member supporting fixture
US20070181735A1 (en) * 2004-04-20 2007-08-09 Airglide Technologies Ag Bearing provided with a carrier surface for moving a platform on an air cushion
US7597185B1 (en) 2007-10-29 2009-10-06 Mantissa Corporation Conveyor and air film chute
US20110222972A1 (en) * 2010-03-10 2011-09-15 David Patrick Erceg Segmented conveyor and air film chute
US8376663B2 (en) 2010-03-10 2013-02-19 Mantissa Corporation Segmented conveyor and air film chute

Also Published As

Publication number Publication date
ZA713367B (en) 1972-03-29
FR2098463A1 (enrdf_load_stackoverflow) 1972-03-10
JPS5122710B1 (enrdf_load_stackoverflow) 1976-07-12
BE769995A (fr) 1971-11-16
SE366524B (enrdf_load_stackoverflow) 1974-04-29
GB1297727A (enrdf_load_stackoverflow) 1972-11-29
DE2134512A1 (de) 1972-01-20
CA936500A (en) 1973-11-06
FR2098463B1 (enrdf_load_stackoverflow) 1976-10-29
NL7109215A (enrdf_load_stackoverflow) 1972-01-18

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