US2538855A - t a t f s pa t fn t - Google Patents

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US2538855A
US2538855A US2538855DA US2538855A US 2538855 A US2538855 A US 2538855A US 2538855D A US2538855D A US 2538855DA US 2538855 A US2538855 A US 2538855A
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flange
spring
channel
bottom member
springs
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/04—Clamps for attaching flat elastic strips or flat meandering springs to frames
    • A47C31/06—Clamps for attaching flat elastic strips or flat meandering springs to frames for attaching flat meandering springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/35—Combinations of different types of springs; Adjustable springs; Attachment of springs to other springs or to the base frame ; Springs for seat parts not provided for in other groups of this subclass

Definitions

  • This invention relates ⁇ to spring cushion structures.
  • the main objects ofthis invention are:
  • Fig. 1 is-an inverted View of -a'springstructure embodying my invention, the topper or mat Vsprings and upholstery being'omitted.
  • Fig. 2 is an enlarged fragmentary perspective View of the baseframe and oneiend of one of the bowed body springs inoperative engaged position therewith.
  • Fig. 3 is'an end view oi'the structure shown in Fig. 1 :with portions-'of the'top'border frame shown in Fig. 1 omitted.
  • Fig. 4 is a fragmentaryplan'view.of a slightly modified embodiment of myinvention.
  • the structure illustrated is especially designed for the support ofl bowed springs generally classied as Zig-'zag springs-although Ydesirable for use in-supporting other typesof springs.
  • the springs illustrated in the embodiment shown in Figs. '1, 2 and 3 are those illustrated in' the' Stuart Patent No. 2,291,094, issued July 28, v1942.
  • 'In spring structures embodying'springs oftl'iis'zig-zagv type the Vbase frame or 'frame/on which the vsprings are mounted is subjected to very heavy load stresses and it is important that the frame shall not yspringer be distorted. It is also important to provide a structure'permitting the rapid and 'effective mountingv of l the springs. n'the' struc,-V
  • ZI'hef baseA frame-ini the embodiment 'illustrated designated generally i by thev numeral i comprises aifrontimemberi?, rear members andend'members vconstituting the tbottom Amember ,of a
  • Tcp members i0 are secured to the-frontand rear bottom frame'members vThese topvm'embers are formed of sheet metal conformedto provide tubular body portions ⁇ vll'which are superimposed upon the channel :portions-f5 nof the'bottom members.
  • the under-ply of the anges i3 is extended inwardly and turned upwardly and outwardly to provide ⁇ spring attaching member i5.
  • These spring attaching ⁇ members have longitudinally spaced holes
  • the body springs I8 may be quickly engaged with the frame land are effectively/supportedthereby so that the frame vreceivesand withstandsthe springing stresses.
  • theiront, rearfan'd side members of the bottomframe member are'formed in two sections joined by the couplings f2 l.
  • the top Amembers iil are provided Vonlyat the front and ⁇ rear of the structure and they constitute effective-reenforcing means-for the base member and also provide means vforv the attachment of the body spring members.
  • the spring elements 22 are single spring elements as distin- 'guished vfrom the double spring elements shown in Figs. 1,2 and 3.
  • the spring elements terminate in arms 23 ⁇ whit-.hare disposed through the notches 24 in the spring attaching flange and retained therein by .clamping ⁇ the ⁇ flange Aaround the arm as indicated at 25.
  • the body springs are usually provided with a topper 'unit which may be made up in the formof a mat of coiled springs provided with a front :border frame 2,6 constituting what 'is commonly designated Vas a front extension and serving to support the upholstery ,in an Vextended relationto the bottom of the cushion.
  • the structure illustrated is designed to have the upholstery secured by tacking to the tacking strip or insert.
  • tie or anchoring members 2l are provided at the corners of the frames, these having arms 23 welded to the bottom member of the frame and being secured to the end bowed spring elements by means of clips 29.
  • Spring tie members 3% are provided for adjacent spring elements, the outer spring elements being connected to the bottom frame of the topper assembly by similar tie members 3l.
  • a base frame comprising a bottom border frame member formed of sheet metal folded upon itself to provide a downwardly facing channel, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange of substantial width, the inner edge of the under ply of the ilange being turned downwardly to pro- 1 Vide the inner arm of the channel, a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member, the edges of the strip being extended in a sideby-side overlapping relation to provide a doubleply flange which is superimposed upon and welded to the flange of the bottom member, the innerply of the top member flange being extended beyond the upper ply thereof and terminating in an outwardly facing spring attaching hooi: having longitudinally spaced holes therethrough an: ⁇ notches adjacent the holes, bowed spring elements having arms at their ends disposed through said notches and terminating in inwardly projecting lugs
  • a base frame comprising a bottom border frame member formed of sheet metal folded upon itself f to provide a downwardly facing channel, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange of substantial width, the inner edge of the under ply of the flange being turned downwardly to provide the inner arm of the channel, a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member, the edges of the strip being extended in a side-byside overlapping relation to provide a double-ply flange which is superimposed upon and welded to the flange of the bottom member, the inner ply of the top member flange being extended beyond the upper ply thereof and terminating in a spring attaching flange, bowed spring elements having arms at their ends engaged with said spring attaching ange, and a tacliing strip in said channel.
  • a base frame for a spring structure comprising a bottom border frame member formed of sheet metal folded upon itself to provide a channel having a tacling insert therein, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange oi substantial width, the inner edge of the under ply of the flange being turned downwardly to provide the inner arm of the channel, and a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member and a flange portion superimposed upon and welded to the flange of the bottom member, the edge of the top member flange terminating in a spring attaching member having longitudinally spaced holes therethrough and notches adjacent the holes adapted te receive the springs to be supported.
  • a base frame for a spring structure comprising a bottom border frame member formed of sheet metal folded upon itself to provide a channel having a tacking insert therein, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange of substantial width, the inner edge of the under ply of the flange being turned downwardly to provide the inner arm of the channel, a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member and a flange portion superimposed upon and welded to the flange of the bottom member, the edge of the tcp member flange terminating in a spring attaching member, and springs engaged with said spring attaching member.
  • a base frame member comprising a bottom border frame member of downwardly facing channel section having a tacking strip therein, the web of the channel being conformed to provide an inwardly projecting double-ply flange of substantial width
  • a top border frame member comprising a tubular body portion disposed upon the bottom member and having a double-ply ilange superimposed upon and fixedly secured to the ilange of the bottom member, the inner ply of the top member flange being extended beyond the upper ply thereof and terminating in outwardly facing flange having longitudinally spaced notches therein, and bowed spring elements having arms at their inner ends disposed through said notches and engaged with said spring attaching flange.
  • a frame member comprising a bottom border frame member of channel section having a taclring Strip therein, the web of the channel being conformed to provide an inwardly projecting flange
  • a top border frame member comprising a tubular body portion disposed upon the bottom member and having a flange superimposed upon and fixedly secured to the flange of the bottom member and provided with spring engaging projections, and bowed spring elements having arms at their limer ends engaged with said projections.
  • a frame for a spring structure comprising a bottom border frame member of channel section having an inwardly extending flange, and a top border frame member superimposed on said bottom member and having an inwardly projecting ange welded to the ilange of the bottom member, said top member flange terminating in a spring attaching arm having longitudinally spaced holes therethrough and notches adjacent the holes, said flange of the bottom member comprising an extension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall of the bottom member, the plies of the folded extension being in abutting relation.
  • a frame for a spring structure comprising a bottom border frame member of channel section having an inwardly extending flange, and a top border frame member superimposed on said bottom member and having an inwardly projecting flange welded to the flange of the bottom member, said top member flange terminating in spring attaching members, said flange of the bottom member comprising an extension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall' of the bottom member, the plies of the folded extension being in abutting relation.
  • a frame comprising a bottom border frame member of channel section having an inwardly eX- tending flange, a top border frame member superimposed on said bottom member and having an inwardly projecting flange welded to the ilange of the bottom member, said top member flange being provided with spring attaching elements, and springs engaged with said elements, said ilange of the bottom member comprisingan eX- tension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall of the bottom member, the plies of the folded extension being in abutting relation.
  • a spring supporting frame comprising a bottom border frame member provided with upholstery attaching means and having an inwardly projecting ilange, a top border frame member superimposed on said bottom member and having an inwardly projecting flange Xedly secured to the ange of said bottom member and having a laterally onset edge portion provided with longitudinally spaced notches, and bowed spring elements having portions disposed through said notches terminating in arms disposed in retaining engagement with said laterally oiset edge, portions of the laterally oiset edge being clamped over the arms of said springs.
  • a spring supporting frame comprising a bottom border frame member provided with upholstery attaching means and having an inwardly projecting flange, a top border frame member superimposed on said bottom memberrand having an inwardly projecting ange flxedly secured to the flange of said bottom member and having a laterally oiTset edge portion provided with longitudinally spaced notches, and bowed spring elements having portions disposed through said r notches terminating in arms disposed in retaining engagement with said laterally offset edge.
  • a spring supporting frame comprising a bottom border frame member provided with upholstery attaching means and having an inwardly projecting flange, a top border frame member superimposed on said bottom member and having an inwardly projecting ange flxedly secured to the flange of said bottom member and provided with spring attaching means, and springs eng-aged with said yattaching means, said flange of the bottom member comprising an extension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall of the bottom member, the plies of the folded extension being in abutting relation.

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  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Description

V. ASARQ SPRING CUSHION STRUCTURE Filed Nov. 9, 1946 5 w, ...Inl
Jan. 23, 1951 M )U m H Patented Jan. 23, 1951 UNET-ED STAT-ES T ENT f :2,538,855 SPRING..cosmos-strenuous Mich.
Application/November 9, 1946,1Serial N.0.`;7.0.89.01
This invention relates `to spring cushion structures.
The main objects ofthis invention are:
`First, to provide a spring cushion structure of Ythe 'type embodying springs-'ofthe bowed zig-Zag type in which Vsuch springs are effectively supported and at the same time may be easily and quickly engaged with the supporting frame.
- Second, to provide a base frame which is very rigid and at the same timemay be formed of relatively light materials and constitutes means for attachment of upholstery thereto.
A structure which embodies the features ofthe invention is illustrated in the accompanying drawing, in which:
Fig. 1 is-an inverted View of -a'springstructure embodying my invention, the topper or mat Vsprings and upholstery being'omitted.
Fig. 2 is an enlarged fragmentary perspective View of the baseframe and oneiend of one of the bowed body springs inoperative engaged position therewith.
Fig. 3 is'an end view oi'the structure shown in Fig. 1 :with portions-'of the'top'border frame shown in Fig. 1 omitted.
Fig. 4 is a fragmentaryplan'view.of a slightly modified embodiment of myinvention.
The structure illustrated is especially designed for the support ofl bowed springs generally classied as Zig-'zag springs-although Ydesirable for use in-supporting other typesof springs. The springs illustrated in the embodiment shown in Figs. '1, 2 and 3 are those illustrated in' the' Stuart Patent No. 2,291,094, issued July 28, v1942. 'In spring structures embodying'springs oftl'iis'zig-zagv type, the Vbase frame or 'frame/on which the vsprings are mounted is subjected to very heavy load stresses and it is important that the frame shall not yspringer be distorted. It is also important to provide a structure'permitting the rapid and 'effective mountingv of l the springs. n'the' struc,-V
tureillu-strated no'consideration has *been given toy din'rrensionsl but itwill be understoodthat the dimensions are Vvaried according to the purpose of thespringfstructure or unit.
"ZI'hef baseA frame-ini the embodiment 'illustrated designated generally i by thev numeral i comprises aifrontimemberi?, rear members andend'members vconstituting the tbottom Amember ,of a
disposed, the tacking strip providing illustrated. The web i of thefbottommemberis :121 Claims. (Cl. 155-179) extended and-folded uponitself to Jprovidethe inwardly projecting double-ply flange', the in ner edgeof the under-ply of this `angelbeing conformed to provide the vinnerfarm -9 of 'the channel.
Tcp members i0 are secured to the-frontand rear bottom frame'members vThese topvm'embers are formed of sheet metal conformedto provide tubular body portions `vll'which are superimposed upon the channel :portions-f5 nof the'bottom members. The edges of theistrip fromwhich the top members are 4formed-'are extended to provide inner and vupper plys I2 of `inwardly Yprojecting flanges I3 which are superimposedl upon the anges of the front andrear members Yand xedly secured thereto 'desirablyfby spot welding as indicated at M. The under-ply of the anges i3 is extended inwardly and turned upwardly and outwardly to provide `spring attaching member i5. These spring attaching `membershave longitudinally spaced holes |26 thereinand notches 'H at each side of and adjacent to the tholes. The body springs |-8 illustrated in Figs. `1,'2 iand3'are of the structure shown in theStuart-patent'here inbefore referred to. These springs are kupwardly bowed vand terminate in varms t9 :which are inserted in the notches 'i"i,--the arms termihating in lugs 20 arranged through'the holes` iB. The body springs I8 may be quickly engaged with the frame land are effectively/supportedthereby so that the frame vreceivesand withstandsthe springing stresses.
It will be noted thattheiront, rearfan'd side members of the bottomframe member are'formed in two sections joined by the couplings f2 l. vThe top Amembers iil are provided Vonlyat the front and `rear of the structure and they constitute effective-reenforcing means-for the base member and also provide means vforv the attachment of the body spring members.
In the modiiication -shownin Fig. 4 the spring elements 22 are single spring elements as distin- 'guished vfrom the double spring elements shown in Figs. 1,2 and 3. The spring elements terminate in arms 23 `whit-.hare disposed through the notches 24 in the spring attaching flange and retained therein by .clamping `the `flange Aaround the arm as indicated at 25. It will be under stood that the body springs are usually provided with a topper 'unit which may be made up in the formof a mat of coiled springs provided with a front : border frame 2,6 constituting what 'is commonly designated Vas a front extension and serving to support the upholstery ,in an Vextended relationto the bottom of the cushion.
The structure illustrated is designed to have the upholstery secured by tacking to the tacking strip or insert.
In the structure illustrated tie or anchoring members 2l are provided at the corners of the frames, these having arms 23 welded to the bottom member of the frame and being secured to the end bowed spring elements by means of clips 29. Spring tie members 3% are provided for adjacent spring elements, the outer spring elements being connected to the bottom frame of the topper assembly by similar tie members 3l.
I have illustrated and described my invention in a highly practical embodiment thereof. I have not attempted to illustrate or describe certain modifications and adaptations which I contemplate as it is believed that this disclosure will enable those skilled in the art to embody or adapt my invention as may be desired.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:
1. In a spring structure the combination of a base frame comprising a bottom border frame member formed of sheet metal folded upon itself to provide a downwardly facing channel, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange of substantial width, the inner edge of the under ply of the ilange being turned downwardly to pro- 1 Vide the inner arm of the channel, a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member, the edges of the strip being extended in a sideby-side overlapping relation to provide a doubleply flange which is superimposed upon and welded to the flange of the bottom member, the innerply of the top member flange being extended beyond the upper ply thereof and terminating in an outwardly facing spring attaching hooi: having longitudinally spaced holes therethrough an:` notches adjacent the holes, bowed spring elements having arms at their ends disposed through said notches and terminating in inwardly projecting lugs disposed through said holes, and a tacking strip in said channel.
2. In a spring structure the combination of a base frame comprising a bottom border frame member formed of sheet metal folded upon itself f to provide a downwardly facing channel, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange of substantial width, the inner edge of the under ply of the flange being turned downwardly to provide the inner arm of the channel, a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member, the edges of the strip being extended in a side-byside overlapping relation to provide a double-ply flange which is superimposed upon and welded to the flange of the bottom member, the inner ply of the top member flange being extended beyond the upper ply thereof and terminating in a spring attaching flange, bowed spring elements having arms at their ends engaged with said spring attaching ange, and a tacliing strip in said channel.
3. A base frame for a spring structure comprising a bottom border frame member formed of sheet metal folded upon itself to provide a channel having a tacling insert therein, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange oi substantial width, the inner edge of the under ply of the flange being turned downwardly to provide the inner arm of the channel, and a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member and a flange portion superimposed upon and welded to the flange of the bottom member, the edge of the top member flange terminating in a spring attaching member having longitudinally spaced holes therethrough and notches adjacent the holes adapted te receive the springs to be supported.
Ll. A base frame for a spring structure comprising a bottom border frame member formed of sheet metal folded upon itself to provide a channel having a tacking insert therein, the web of the channel being extended inwardly and folded upon itself to provide a double-ply flange of substantial width, the inner edge of the under ply of the flange being turned downwardly to provide the inner arm of the channel, a top border frame member formed of sheet metal folded upon itself to provide a tubular body portion disposed above the channel portion of the bottom member and a flange portion superimposed upon and welded to the flange of the bottom member, the edge of the tcp member flange terminating in a spring attaching member, and springs engaged with said spring attaching member.
5. In a spring structure the combination of a base frame member comprising a bottom border frame member of downwardly facing channel section having a tacking strip therein, the web of the channel being conformed to provide an inwardly projecting double-ply flange of substantial width, a top border frame member comprising a tubular body portion disposed upon the bottom member and having a double-ply ilange superimposed upon and fixedly secured to the ilange of the bottom member, the inner ply of the top member flange being extended beyond the upper ply thereof and terminating in outwardly facing flange having longitudinally spaced notches therein, and bowed spring elements having arms at their inner ends disposed through said notches and engaged with said spring attaching flange.
6. In a spring structure, the combination of a frame member comprising a bottom border frame member of channel section having a taclring Strip therein, the web of the channel being conformed to provide an inwardly projecting flange, a top border frame member comprising a tubular body portion disposed upon the bottom member and having a flange superimposed upon and fixedly secured to the flange of the bottom member and provided with spring engaging projections, and bowed spring elements having arms at their limer ends engaged with said projections.
7. A frame for a spring structure comprising a bottom border frame member of channel section having an inwardly extending flange, and a top border frame member superimposed on said bottom member and having an inwardly projecting ange welded to the ilange of the bottom member, said top member flange terminating in a spring attaching arm having longitudinally spaced holes therethrough and notches adjacent the holes, said flange of the bottom member comprising an extension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall of the bottom member, the plies of the folded extension being in abutting relation.
8. A frame for a spring structure comprising a bottom border frame member of channel section having an inwardly extending flange, and a top border frame member superimposed on said bottom member and having an inwardly projecting flange welded to the flange of the bottom member, said top member flange terminating in spring attaching members, said flange of the bottom member comprising an extension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall' of the bottom member, the plies of the folded extension being in abutting relation.
9. In a spring structure, the combination of a frame comprising a bottom border frame member of channel section having an inwardly eX- tending flange, a top border frame member superimposed on said bottom member and having an inwardly projecting flange welded to the ilange of the bottom member, said top member flange being provided with spring attaching elements, and springs engaged with said elements, said ilange of the bottom member comprisingan eX- tension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall of the bottom member, the plies of the folded extension being in abutting relation.
10. In a spring structure the combination of a spring supporting frame comprising a bottom border frame member provided with upholstery attaching means and having an inwardly projecting ilange, a top border frame member superimposed on said bottom member and having an inwardly projecting flange Xedly secured to the ange of said bottom member and having a laterally onset edge portion provided with longitudinally spaced notches, and bowed spring elements having portions disposed through said notches terminating in arms disposed in retaining engagement with said laterally oiset edge, portions of the laterally oiset edge being clamped over the arms of said springs.
11. In a spring structure the combination of a spring supporting frame comprising a bottom border frame member provided with upholstery attaching means and having an inwardly projecting flange, a top border frame member superimposed on said bottom memberrand having an inwardly projecting ange flxedly secured to the flange of said bottom member and having a laterally oiTset edge portion provided with longitudinally spaced notches, and bowed spring elements having portions disposed through said r notches terminating in arms disposed in retaining engagement with said laterally offset edge.
12. In a spring structure the combination of a spring supporting frame comprising a bottom border frame member provided with upholstery attaching means and having an inwardly projecting flange, a top border frame member superimposed on said bottom member and having an inwardly projecting ange flxedly secured to the flange of said bottom member and provided with spring attaching means, and springs eng-aged with said yattaching means, said flange of the bottom member comprising an extension of one of the walls of the bottom member folded upon itself and integrally connected with an adjacent wall of the bottom member, the plies of the folded extension being in abutting relation.
VITO ASARO.
REFERENCES CITED The following references are of record in the le of this patent:
YUNITED STATES PATENTS Van Hove Aug. 3, 1948
US2538855D t a t f s pa t fn t Expired - Lifetime US2538855A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612941A (en) * 1951-02-28 1952-10-07 Stephen F Olesak Upholstering
US3288503A (en) * 1966-11-29 Spring clip
US3386725A (en) * 1967-04-03 1968-06-04 Fujikawa Koichi Seat frame member
US3720568A (en) * 1971-03-22 1973-03-13 D Rowland Seating and sub-assembly for seats and backs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2203007A (en) * 1938-05-07 1940-06-04 Calvin A Hooker Cushion assembly
US2218708A (en) * 1938-05-04 1940-10-22 Murray Corp Spring structure
US2261996A (en) * 1938-03-25 1941-11-11 Murray Corp Seat back construction
US2306150A (en) * 1941-06-23 1942-12-22 L A Young Spring & Wire Corp Spring structure
US2446500A (en) * 1944-01-28 1948-08-03 Falls Spring & Wire Company Upholstery spring structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261996A (en) * 1938-03-25 1941-11-11 Murray Corp Seat back construction
US2218708A (en) * 1938-05-04 1940-10-22 Murray Corp Spring structure
US2203007A (en) * 1938-05-07 1940-06-04 Calvin A Hooker Cushion assembly
US2306150A (en) * 1941-06-23 1942-12-22 L A Young Spring & Wire Corp Spring structure
US2446500A (en) * 1944-01-28 1948-08-03 Falls Spring & Wire Company Upholstery spring structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288503A (en) * 1966-11-29 Spring clip
US2612941A (en) * 1951-02-28 1952-10-07 Stephen F Olesak Upholstering
US3386725A (en) * 1967-04-03 1968-06-04 Fujikawa Koichi Seat frame member
US3720568A (en) * 1971-03-22 1973-03-13 D Rowland Seating and sub-assembly for seats and backs

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