US3899207A - Chairs - Google Patents

Chairs Download PDF

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Publication number
US3899207A
US3899207A US429626A US42962673A US3899207A US 3899207 A US3899207 A US 3899207A US 429626 A US429626 A US 429626A US 42962673 A US42962673 A US 42962673A US 3899207 A US3899207 A US 3899207A
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US
United States
Prior art keywords
seat
chair according
supporting frame
chair
supports
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
US429626A
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English (en)
Inventor
Falk Mueller
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.)
VS SCHULMOEBEL GmbH
VS-SCHULMOEBEL VERWALTUNGS-GMBH
Original Assignee
VS SCHULMOEBEL GmbH
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 VS SCHULMOEBEL GmbH filed Critical VS SCHULMOEBEL GmbH
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Publication of US3899207A publication Critical patent/US3899207A/en
Anticipated expiration legal-status Critical
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/04—Stackable chairs; Nesting chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/043—Metal chairs, e.g. tubular of tubular non-circular cross-section

Definitions

  • a staclcable chair has a frame which comprises a U- shaped base, open to the front and two lateral supports welded or otherwise secured to the limbs of the base and upstanding therefrom.
  • a seat is attached to a U-shaped seat supporting frame, open to the rear, which is welded or otherwise secured to the supports.
  • a back rest is attached to the upper ends of the supports. The seat and/or the back rest may comprise a blow moulded hollow body.
  • the invention relates to stackable chairs.
  • One previously proposed stackable chair has a base formed by two side runners which are joined together in the form of an H. Upstanding lateral supports for the seat and the backrest are outwardly secured to the runners. Thus the connections between the supports and the runners are liable to bend when the chair is tilted on edge.
  • the central part of the H also reduces leg movement.
  • the supports and the central part connecting them comprise separate parts so that a very large number of points of welding is required, or very sharp bending is needed and this precludes the use of tubing or hollow profiles for the manufacturing material.
  • Another previously proposed stackable chair has a U-shaped base lying on the floor and comprise a single U-shaped piece of steel tubing which is closed at the rear and from the front ends of which two lateral supports are bent upwardly to the two front corners of the seat, pass beneath the seat and in turn are bent upwardly in the rear region to form a support for the back rest.
  • An advantage of this chair in fact is that its frame can be bent substantially from one piece of tubing without much welding, but it needs a relatively large quantity of material because, on the one hand, the length of its tubing is relatively long and, on the other hand, the tubing must have a very large cross-section or a high quality.
  • the weight of the person using the chair is in fact largely concentrated to the rear portion of the chair, i.e. in precisely that portion where there is no support, and consequently the whole chair is compressed like a spring.
  • a feature of the invention is, therefore, to produce a a stackable chair on runners which keeps its shape whilst not requiring much material and can be produced simply.
  • a stackable chair comprises a metal frame having a continuous U-shaped base and two lateral supports which slope backwards and are outwardly attached to the central regions of the two substantially parallel runners formed by the limbs of the U-shaped continuous base which is open at the front and is closed at the rear by a crosspiece, a seat having a U-shaped seat supporting frame attached to the supports, said seat supporting frame being closed at the front and extending round the peripheral region of the seat, and a back rest attached to the upper ends of the supports.
  • Such a chair needs only four parts for its frame, i.e. the two substantially straight or slightly curved lateral supports and two U- shaped frames.
  • the two U-shaped frames which are preferably welded between the supports create a very sturdy, self-supporting frame to be produced which is very resistant to twisting or buckling especially because of the frame arrangement which is closed at the front at the seat and is closed at the rear at the base.
  • the chair can be readily stacked and saves a great deal of space.
  • the supports were produced integrally with the base and, by bending, were converted into a section running forwards parallel to the limbs, considerably less and more simple bending is necessary and consequently harder materials may be used.
  • the front ends of the limbs of the base are closed by closure members having a lower supporting face.
  • the frame is made preferably from substantially flat oval tubing. What is also meant hereby is a tubing whose crosssectional form consists of two semi-circular arcs and straight lines connecting these arcs.
  • the flat oval tubing has the advantage of being very resistent to bending in the main bending direction which corresponds to the alignment of the flat oval tubing, i.e. in the longitudinal direction of the chair in the case of the supports and in the vertical direction in the case of the base.
  • the two supports in the region of the seat are joined together by means of a seat supporting frame to which the seat is attached and which passes below the seat.
  • This seat supporting frame is preferably welded to the supports and thus serves to achieve a very sturdy chair. It also enables the seat to be made from a less rigid, i.e. not necessarily self-supporting material.
  • the seat supporting frame may preferably pass round the outer edge of the seat and project a little beyond this outer edge. Besides giving the chair a very good appearance, this frame also protects the material of the seat which is generally made of a softer and less robust material. However, the person using the chair does not normally feel the edge of the seat supporting frame, which only projects a few millimeters, whilst he is sitting.
  • the seat supporting frame may be made of a metal profile whose underside is constructed so as to accommodate a protective profiled strip made of a resilient adherent material.
  • the structure of the seat supporting frame will preferably be a closed or open square structure.
  • the underside of the seat supporting frame may have an undercut structure which is highly suitable for inserting and holding the protective profiled strip.
  • the seat and/or the back rest may be made from a hollow body of plastics material. This can be made relatively easily as a substantially closed body by a blow moulding process. It is very sturdy and the parts which are in contact with the occupants body have a relatively small mass so that it does not feed cold. A substantial advantage lies in the fact that the underside of the chair is also closed.
  • Such a seat may have a recess formed in the region of its outer edge, this recess being so constructed that it at least partially accommodates the seat supporting frame. It is also possible to give the wall forming the underside of the hollow seat a reinforcing structure which, if need be, provides direct support for a load applied to the top of the seat.
  • the back rest is constructed as a hollow body made of plastics material. It is important for the back wall of the back rest to also be closed, thus giving a very good appearance without the chair becoming heavy thereby.
  • the back rest can advantageously be inserted between the upper ends of the supports, but may also overlap these supports.
  • a handle-type recess which does not go through the rear wall of the hollow back rest, may be formed in this wall. This handle-type recess which is important for carrying the chair does not therefore need to be obtained at the expense of an inconvenient cut in the back rest.
  • FIG. i is a perspective view of a chair according to the invention
  • FIG. 2 is a fragmented section along line II-II in FIG. i to a much larger scale.
  • FIG. 3 is a likewise fragmented section along the line lIl-IIl in FIG. 1, also on a larger scale,
  • FIG. i is a side view of chairs which have been stacked one on top of the other according to a modified embodiment of the invention.
  • FIG. 5 is a side view of a chair with the underside of the suspended on a table
  • FIG. 6 is a front view of the chair of FIGS. 4 and 5.
  • FIG. 7 is a sectional detail of a front or side edge of the seat of the chair of FIGS. 4 to 6.
  • the chair ii shown in FIGS. i to 3 has a frame 112 made of steel tubing, i.e. from flat oval-sectioned tub ing.
  • the cross-section of this tubing comprises two semicircular arcs and straight lines connnecting these arcs.
  • the frame 12 has a U-shaped base i3 comprising two lateral runners 14, which extend substantially in the longitudinal direction (forwards and backwards) of the chair, and a rear crosspiece 15 which joins the two runners 14 together.
  • the U-shaped base 13 thus formed is curved integrally with relatively large rounded portions at the corners and is open at the front.
  • the front ends are closed by closure members 16 of plastics material which are slipped over the free ends of the runners i4. They also have on their underside a supporting face 17 which serves as a foot to protect the floor from being damaged.
  • Large supporting members 18 are situated in the region of the rear corners. In particular, both these supporting members serve to protect carpeted floors.
  • the frame 12 also has two lateral upright supports 19 whose lower ends are outwardly joined to the central region (a little in front of the middle) of the runners 114.
  • the joints are thereby subjected to a relatively small leverage.
  • the joints are made by welds 20.
  • the substantially straight, but in the embodiment shown in PEG. 1 slightly forwardly curved supports 19 are welded on to the base frame so that they slope upwardly rearwards. During attachment it should be ensured that the supports 19 are attached to the runners i from the outside in such a way that the base of a chair which is stacked on top can pass between the supports as shown in FIG. 4.
  • the supports 1? are joined together by means of a U-shaped seat supporting frame 21 which is closed at the front and open at the rear.
  • This seat supporting frame extends round the outside of a seat 22 and projects a little outwardly of the seat 22.
  • the seat supporting frame 21 is inserted between the supports 19 and connected to these supports by welds 23. It is also important here for the seat of a chair to be able to slide between the supports of an identical chair during stacking.
  • the seat supporting frame 21 is made of rectangular section steel tubing which is bent into its U-shape.
  • the seat 22 is a hollow member made of plastics material which is substantially closed on all sides and is manufactured by a blow moulding process. It has an upper side 24 serving as a seat face and an underside 25 provided with channel like indentations 26 which form a structure to reinforce the underside of the seat. As can be seen, there is only a relatively small gap between the upper side E i and the base of the indentation 2n and this gap can be closed upon deflection of the seat upper side 24 so that the underside then carries part of the weight of the person using the chair.
  • the seat can be very well adapted to this seat form during manufacture.
  • the periphery of the seat has a recess 27 which is partially adapted to the outer structural form of the scat supporting frame 211 which is rectangular in the present embodiment.
  • a continuous projection 28 on the seat 22 engages beneath the lower face of the seat. supporting frame 21 so that the seat can be slipped from the rear into the seat supporting frame and be guided therein.
  • a sloping stop projection (not shown) may be moulded on a surface of the seat 22 which is in contact with the seat supporting frame 21, this stop projection engaging with a hole in the seat supporting frame and securing the seat in position.
  • recesses 29 are formed in which resilient supporting pads 36) can be inserted. These recesses may alternatively be moulded in so that they extend round the underside of the seat and can receive profiled padding.
  • These supporting pads 3d serve to protect the seat face during stacking (cf. FIG. 4) and to protect a table face when the chair is possibly and advantageously suspended on the table whilst the floor is being cleaned, or during a similar process, (of. Fi'G. 5).
  • this type of chair suspension is possibie.
  • a back rest 31 is also made of a hollow body of plastics material which is manufactured by a blow moulding process. This body is also substantially closed on all sides.
  • FIG. 3 is a central cross-section through the back rest 31.. It is inserted internally between the supports i9.
  • the back rest 33 is secured by means of screws 33.
  • the hollow body may alternatively be of such a shape that it overiaps the upper ends of the supports 29. in the present embodiment, the upper ends of the sup' ports 19 are closed by end pieces 34.
  • the back rest 31 is not thicker than the dimensions of the supports 19 in this direction, its. the longitudinal direction of the chair. It is thereby ensured that the chairs are parallel to each other during stacking and are not pushed forwards like a fan as a result of a thickened or screwedon back rest.
  • a handlelike recess 36 is provided, but this does not impair the closed form of the hollow space and the back support face.
  • FIG. 4 shows principally the advantageous manner of stacking chairs according to the invention. Because the supports 19 are externally located and there is room for the bases 13 and the seats between the supports ilQ, the chairs can be stacked very compactly and very sturdiiy. Because of the substantial paralielism between the upper and lower faces of the seat, a straight stack is formed which does not tilt forwards, as would be the case with sloping undersides for the seats.
  • FIGS. 4 to 7 differs from that shown in FIGS. 1 to 3 in that the supports 19 are completely rectilinear and in that seats 22' made of shaped plywood are used instead of seats made of hollow pieces of plastics material as illustrated particularly in FIGS. 2 and 3.
  • the seat supporting frame 21 which is used thereby, is shown in detail in FIG. 7. It consists of an open steel structure forming an angle with an upper limb and a front limb to which a U-shaped structure 40, which is open towards the bottom but which is slightly undercut, is connected on the underside.
  • a resilient profiled strip 30 of plastics material which serves as a supporting pad is inserted in this U-shaped structure.
  • the seat 22 is made of pre-formed plywood and is connected to the seat supporting frame 21' by means of screws or rivets 37.
  • This seat supporting frame may have the most varied shapes and in particular a closed structure can also be used or a C-shaped structure wherein the structure 30' is inserted in its lower opening.
  • the seat supporting frame may also have the form of an angular frame which is open towards the top and into which an upholstered seat may be inserted or pushed in from the rear.
  • the cushion can be prevented from falling out by screws, but the entire seat load is transferred directly from the seat to the lower horizontal members of the angular frame.
  • the angular frame may become flatter towards the front from its mounting point to the supports so that there is also an adequate amount of upholstery in the edge region and a person does not sit on the high edge of the angular frame when the upholstery is compressed.
  • the U-shaped seat supporting frame and the U- shaped base should, in the region of their curves have smaller dimensions between the limbs (in the case of the seat supporting frame) and between the runners (in the case of the base) than at the ends remote from their curves. These ends then slightly diverge in the direction of their free ends in the case of the base or in the direction of their welded ends in the case of the seat supporting frame. This makes stacking easier and also enables, if necessary, the supports to be formed so that they slightly converge towards the top, this possibly being desirable from the point of view of appearance and statics.
  • a stackable chair comprising:
  • a continuous U-shaped metal base having a pair of substantially parallel runners, said U-shaped base being open toward the front of the chair;
  • a pair of lateral supports attached to the outer sides of the central portions of said runners and sloping upwardly towards the rear of the chair;
  • a chair according to claim 3 further comprising closure members closing the front ends of the runners formed by said limbs of the base, each of said closure members being provided with a lower supporting face.
  • a chair according to claim 3 in which said frame is made essentially from flat oval tubing.
  • a chair according to claim 1 in which said seat supporting frame passes around the outer edge of said seat and projects a little beyond such outer edge.
  • said seat supporting frame comprises a bent metal profiled bar whose underside is provided with means for accommodating a protective profiled strip of resilient material, and in which a strip of resilient profiled material is received in the last mentioned means.
  • a chair according to claim 1 in which said seat comprises a hollow body of plastics material.
  • a chair according to claim 10 in which said seat, in its outer edge region, has a moulded recess which is shaped to partially accommodate said seat support frame.
  • a chair according to claim 10 in which said hollow body of plastics material has a lower wall forming the underside of the seat, said lower wall having a strengthening profile.
  • a chair according to claim 10 in which said hollow body of plastics material has a lower wall forming the underside of the seat, said lower wall having moulded therein receiving means for supporting pads and in which protective supporting pads are received in said receiving means.
  • a chair according to claim 1 in which said back rest is inserted between the upper ends of said supports and has a thickness no greater than the dimensions of said supports in the longitudinal direction of the chair.
  • a chair according to claim 1 in which said seat supporting frame is so shaped that said seat can be pushed therein position from the rear.
  • a chair according to claim 10 in which said seat supporting frame is so shaped that said seat can be pushed into seat supporting frame from the rear.
  • a chair according to claim 20 further comprising projection means in the region between the seat and the seat supporting frame for latching said seat in said seat supporting frame.
  • a chair according to claim 21 in which said projection means is formed integrally on said seat and said seat supporting frame has aperture means therein receiving said projecting means.
  • a chair according to claim 1 in which said seat lies on top of said seat supporting frame and in which fastening means extends through said seat to said seat supporting frame to secure the former to the latter.

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  • Chairs Characterized By Structure (AREA)
US429626A 1972-12-20 1973-12-28 Chairs Expired - Lifetime US3899207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7246503 1972-12-20

Publications (1)

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US3899207A true US3899207A (en) 1975-08-12

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ID=6634577

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US429626A Expired - Lifetime US3899207A (en) 1972-12-20 1973-12-28 Chairs

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US (1) US3899207A (de)
AT (1) AT335663B (de)
CH (1) CH570793A5 (de)
DE (1) DE2353341C3 (de)
FR (1) FR2211849A5 (de)
GB (1) GB1454421A (de)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD256969S (en) 1977-09-23 1980-09-23 Cassina S.P.A. Chair
USD259598S (en) 1978-07-31 1981-06-23 Giroflex Entwicklungs Ag Chair or similar article
USD281934S (en) 1983-06-10 1985-12-31 Michael Braun Chair
USD306237S (en) 1987-03-26 1990-02-27 Shelby Williams Industries, Inc. Tubular arm chair
USD336790S (en) 1990-12-10 1993-06-29 Craig Louers Standing chair
USD352614S (en) 1993-07-30 1994-11-22 Adams Douglas W Youth chair
US5927805A (en) * 1997-04-18 1999-07-27 Koala Corporation Stackable children's high-chair
US6030037A (en) * 1998-05-15 2000-02-29 Steelcase Inc. Horizontally nestable chair
US20070132291A1 (en) * 2005-12-12 2007-06-14 Mity-Lite, Inc. Feet for stacking chair
USD599127S1 (en) 2009-04-13 2009-09-01 Mity-Lite, Inc. Mesh folding chair
US8029059B2 (en) 2008-12-24 2011-10-04 Mity-Lite, Inc. Folding and stacking mesh chair system
USD648554S1 (en) 2009-11-04 2011-11-15 Mity-Lite, Inc. Mesh stacking chair
USD660612S1 (en) 2010-11-16 2012-05-29 Mity-Lite, Inc. Mesh banquet chair
US8317269B2 (en) 2008-12-24 2012-11-27 Mity-Lite, Inc. Mesh stacking chair
US8322787B2 (en) 2008-12-24 2012-12-04 Mity-Lite, Inc. Clamping joint for a chair
US8454093B2 (en) 2008-12-24 2013-06-04 Mity-Lite, Inc. Mesh chair with open-end hoop
CN105962677A (zh) * 2016-07-25 2016-09-28 刘清泉 具有一体式结构的座椅
US20160331138A1 (en) * 2015-05-13 2016-11-17 Alvaro Mauricio Olarte Stackable Chair
USD779221S1 (en) 2015-11-03 2017-02-21 Mity-Lite, Inc. Stacking chair
USD779222S1 (en) 2015-11-03 2017-02-21 Mity-Lite, Inc. Stacking chair
USD784038S1 (en) 2015-11-03 2017-04-18 Mity-Lite, Inc. Stacking chair
USD801062S1 (en) * 2016-07-27 2017-10-31 Yu-Shan Lin Folding chair
US10010178B2 (en) 2015-11-05 2018-07-03 Mity-Lite, Inc. Stacking chair
USD907388S1 (en) * 2018-02-21 2021-01-12 Joshua Dorsey Chair
US20220378644A1 (en) * 2019-10-30 2022-12-01 Dignity Health Apparatus for storage and transportation of an exoskeleton
USD1069439S1 (en) * 2021-11-12 2025-04-08 9514341 Canada Inc. Foldable chair
USD1072509S1 (en) * 2022-07-01 2025-04-29 Varier Furniture As Chair
US12408756B1 (en) 2022-05-27 2025-09-09 Series International, Llc Stacking chair with removable back
USD1101440S1 (en) * 2023-10-26 2025-11-11 Dexiao Xu Chair

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709543C2 (de) * 1977-03-04 1985-11-14 VS Vereinigte Spezialmöbelfabriken Verwaltungs-GmbH, 6972 Tauberbischofsheim Stapelbarer Kufenstuhl
FR2392631A1 (fr) * 1977-05-31 1978-12-29 Gheorghiu Ion Siege
DE3635811A1 (de) * 1986-10-22 1988-05-05 Ver Spezialmoebel Verwalt Stuhl mit einem aus profilen zusammengesetzten stuhlgestell
GB0621138D0 (en) * 2006-10-24 2006-12-06 Goodwin Anthony E Stool-O1

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159428A (en) * 1964-12-01 schier
US3203731A (en) * 1963-09-09 1965-08-31 Krueger Metal Products Multiple seating including stackable chairs with folding backs
US3236559A (en) * 1963-12-13 1966-02-22 Hans J Kaufman Stacking chair with arms
US3734561A (en) * 1971-06-03 1973-05-22 American Seating Co Sled base frame chair
US3796169A (en) * 1972-09-25 1974-03-12 American Standard Inc Tiltable table structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159428A (en) * 1964-12-01 schier
US3203731A (en) * 1963-09-09 1965-08-31 Krueger Metal Products Multiple seating including stackable chairs with folding backs
US3236559A (en) * 1963-12-13 1966-02-22 Hans J Kaufman Stacking chair with arms
US3734561A (en) * 1971-06-03 1973-05-22 American Seating Co Sled base frame chair
US3796169A (en) * 1972-09-25 1974-03-12 American Standard Inc Tiltable table structure

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD256969S (en) 1977-09-23 1980-09-23 Cassina S.P.A. Chair
USD259598S (en) 1978-07-31 1981-06-23 Giroflex Entwicklungs Ag Chair or similar article
USD281934S (en) 1983-06-10 1985-12-31 Michael Braun Chair
USD306237S (en) 1987-03-26 1990-02-27 Shelby Williams Industries, Inc. Tubular arm chair
USD336790S (en) 1990-12-10 1993-06-29 Craig Louers Standing chair
USD352614S (en) 1993-07-30 1994-11-22 Adams Douglas W Youth chair
US5927805A (en) * 1997-04-18 1999-07-27 Koala Corporation Stackable children's high-chair
US6030037A (en) * 1998-05-15 2000-02-29 Steelcase Inc. Horizontally nestable chair
US6142566A (en) * 1998-05-15 2000-11-07 Steelcase Development Inc. Chair
US6286901B1 (en) 1998-05-15 2001-09-11 Steelcase Development Inc. Chair
US20070132291A1 (en) * 2005-12-12 2007-06-14 Mity-Lite, Inc. Feet for stacking chair
US7552968B2 (en) 2005-12-12 2009-06-30 Mity-Lite, Inc. Feet for stacking chair
US8322787B2 (en) 2008-12-24 2012-12-04 Mity-Lite, Inc. Clamping joint for a chair
US9492014B1 (en) 2008-12-24 2016-11-15 Mity-Lite, Inc. Mesh folding chair
US8033612B2 (en) 2008-12-24 2011-10-11 Mity-Lite, Inc. Comfortable mesh folding chair
US8033598B2 (en) 2008-12-24 2011-10-11 Mity-Lite, Inc. Mesh folding chair
US8038221B2 (en) 2008-12-24 2011-10-18 Mity-Lite, Inc. Folding mesh chair with nesting hoops
US8317269B2 (en) 2008-12-24 2012-11-27 Mity-Lite, Inc. Mesh stacking chair
US8454093B2 (en) 2008-12-24 2013-06-04 Mity-Lite, Inc. Mesh chair with open-end hoop
US8029059B2 (en) 2008-12-24 2011-10-04 Mity-Lite, Inc. Folding and stacking mesh chair system
USD599127S1 (en) 2009-04-13 2009-09-01 Mity-Lite, Inc. Mesh folding chair
USD648554S1 (en) 2009-11-04 2011-11-15 Mity-Lite, Inc. Mesh stacking chair
USD660612S1 (en) 2010-11-16 2012-05-29 Mity-Lite, Inc. Mesh banquet chair
US20200077797A1 (en) * 2015-05-13 2020-03-12 Alvaro Mauricio Olarte Stackable Chair
US10881210B2 (en) 2015-05-13 2021-01-05 Series International, Llc Stackable chair
US20160331138A1 (en) * 2015-05-13 2016-11-17 Alvaro Mauricio Olarte Stackable Chair
US10517400B2 (en) * 2015-05-13 2019-12-31 Series International, Llc Stackable chair
US10674825B2 (en) * 2015-05-13 2020-06-09 Series International, Llc Stackable chair
USD779221S1 (en) 2015-11-03 2017-02-21 Mity-Lite, Inc. Stacking chair
USD779222S1 (en) 2015-11-03 2017-02-21 Mity-Lite, Inc. Stacking chair
USD784038S1 (en) 2015-11-03 2017-04-18 Mity-Lite, Inc. Stacking chair
US10010178B2 (en) 2015-11-05 2018-07-03 Mity-Lite, Inc. Stacking chair
CN105962677A (zh) * 2016-07-25 2016-09-28 刘清泉 具有一体式结构的座椅
USD801062S1 (en) * 2016-07-27 2017-10-31 Yu-Shan Lin Folding chair
USD907388S1 (en) * 2018-02-21 2021-01-12 Joshua Dorsey Chair
US20220378644A1 (en) * 2019-10-30 2022-12-01 Dignity Health Apparatus for storage and transportation of an exoskeleton
USD1069439S1 (en) * 2021-11-12 2025-04-08 9514341 Canada Inc. Foldable chair
US12408756B1 (en) 2022-05-27 2025-09-09 Series International, Llc Stacking chair with removable back
USD1072509S1 (en) * 2022-07-01 2025-04-29 Varier Furniture As Chair
USD1101440S1 (en) * 2023-10-26 2025-11-11 Dexiao Xu Chair

Also Published As

Publication number Publication date
GB1454421A (en) 1976-11-03
CH570793A5 (de) 1975-12-31
ATA1055573A (de) 1976-07-15
DE2353341A1 (de) 1975-04-30
FR2211849A5 (de) 1974-07-19
DE2353341C3 (de) 1979-12-06
DE2353341B2 (de) 1979-04-05
AT335663B (de) 1977-03-25

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