US3227243A - Step stool - Google Patents
Step stool Download PDFInfo
- Publication number
- US3227243A US3227243A US335914A US33591464A US3227243A US 3227243 A US3227243 A US 3227243A US 335914 A US335914 A US 335914A US 33591464 A US33591464 A US 33591464A US 3227243 A US3227243 A US 3227243A
- Authority
- US
- United States
- Prior art keywords
- legs
- seat
- interconnected
- rear legs
- frame
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/04—Folding chairs with inflexible seats
- A47C4/18—Folding chairs with inflexible seats having a frame made of metal
- A47C4/20—Folding chairs with inflexible seats having a frame made of metal with legs pivotably connected to seat or underframe
Definitions
- This invention relates to a collapsible step stool, and has for its object the provision of a step stool which can be collapsed for convenience of storage, which can be easily moved between collapsed and extended positions, which will be of attractive appearance, and which will prove sturdy and durable in use. It is a specific object of the invention to provide a foot support for a step which can be economically formed from plastic material and which will provide a resilient support.
- a pair of interconnected rear legs In accordance with one form of the invention, there is provided a pair of interconnected rear legs.
- a pair of interconnected front legs are pivotally interconnected to said rear legs by link means for swinging movement between an operative position in which they are disposed Well forwardly of the rear legs and a retracted position in which they are disposed adjacent the rear legs.
- a seat is pivotallyinterconnected to said front and rear legs for swinging movement with said front legs between a retracted generally vertical position and an operative horizontal position in which it is supported on the rear legs and the upper ends of the front legs.
- a transverse rod extends between the front legs below their interconnection to the seat.
- Said rod is pivotally interconnected by link means to the forward portion of a step pivotally interconnected adjacent its rear edge to the rear legs.
- Said step is movable with the front legs and seat between an operative position in which it is supported on said rod and the rear legs and a retracted position in which it lies in a generally vertical plane adjacent the rear legs.
- said step comprises a generally rectangular frame having a brace extending transversely thereacross intermediate its length.
- a foot support in the form of a resilient self-supporting envelope having a plurality of air filled channels is bindingly retained in the opening defined by the step frame and brace.
- FIG. 1 is a front elevation of a step stool embodying the invention
- FIG. 2 is'a vertical section taken on the line 22 of FIG. 1 and showing said stool inv its retracted position in dotted lines;
- FIG. 3 is an enlarged fragmentary vertical section taken on the line 3-3 of FIG.- l;'
- FIG. 4 is an enlarged fragmentary vertical section taken on the line' 4-4 of FIG. 1;
- FIG. 5 is'a 'top plan view of the step stool shown in f' FIG. 1, but showing portions of the seat broken away;
- FIG. 6 is 'a vertical section taken on the line 66 of FIG. 2.
- the step stool is supported on pairs of front and rear legs 10 and 12.
- the rear legs 10 are the ends of a length of metal tubingbent into a generally U-shaped configuration.
- the legs 10 are interconnected at their upper ends ice upper ends thereof.
- caps 19 are mounted on the lower ends of the front and rear legs to prevent said legs from marring the floor.
- a seat 20 is pivotally interconnected to the legs 10 and 12.
- said seat may comprise a frame 22 formed from a length of metal tubing bent into a rectangular shape and pivotally interconnected adjacent its rear edge to the inner faces of the rear legs 10 as by rivets 23. Adjacent its front edge, the frame 22 is pivotally interconnected to the front legs 12 by a transversely extending rod 26 carried in the bight 18 and projecting outwardly from the legs 12 for reception in aligned openings formed in the adjacent inner faces of said frame.
- a rigid panel 24 having a padded covering 25 extending thereover is mounted on the frame 22 to form the supporting surface for the seat.
- the pairs of legs 10 and 12 at the sides of the stool are pivotally interconnected by link arms 28 lying in the planes of the legs at each side of the stool.
- the arms 28 are identical in construction, and each has its end adjacent the leg 10 flattened and bent upwardly, as at 30, for reception in a vertically extending slot 32 formed in the forward face of the leg 10.
- the flattened arm end 30 is pivotally connected to the leg 10 as by a rivet 33.
- the opposite end of said rod is flattened and bent downwardly, as at 35, for reception in an elongated slot 36 formed in the rearwardly presented face of the leg 12.
- the rod end 35 is pivotally interconnected to said leg by a rivet 38.
- a step 40 is supported on the legs 10 and 12 below the seat 20.
- said step comprises a frame 42 formed from a length of metal tubing bent into a rectangular shape.
- An L-sh'aped brace 41 having arms 43 and 44 extends transversely of the frame 42 intermediate its length and has its ends received in openings formed in the opposed inner faces of said frame.
- Adjacent its rear edge the frame 42 is pivotally connected to the inner faces of the legs 10 by the rivets 33 interconnecting the link arms 28 to said legs.
- the lateral stretches of the frame 42 are provided with notches 46 receivable over a transverse rod 48 extending between the front legs 12 for supporting the forward portion of the step 40 in a horizontal operative position on said front legs.
- the step is pivotally interconnected to the front legs 12 by a pair of links 50 each having one of its ends rotatably carried on the rod 48 and its opposite end fixedly connected to a rivet 52 mounted in a lateral stretch of the frame 42.
- a foot support 54 is mounted on the frame 42 within the opening defined by the forward portion of said frame and the brace 41.
- Said support is in the form of :an envelope of a flexible self-supporting plastic material such as linear polyethylene or the like.
- Said support has upper and lower walls 56 and 58 which are integrally connected at the periphery of the support. Conveniently, a plurality of tread-forming ribs 59 are formed in the upper wall 56. Spaced fore and aft longitudinal portions 62 of the wall 58 project downwardly from the wall 56 to define a plurality of longitudinally extending air filled chambers 64.
- the wall 58 also has spaced transversely extending portions 66 projecting downwardly from the upper wall 56 which deby a bight 14 extendingtransvers ely of the stool.
- the front legs 12 also constitute the ends of a length of metal tubing bent into a generally U-shape with the bight 18 of said length of tubing interconnecting said legs at the fine transversely extending air filled chambers 68.
- the portions of the lower wall 58 intermediate the portions 62 and 66 are integral with the upper wall- 56 to rigidly interconnect said upper and lower walls to stiffen the support 54.
- the support side walls 70 have concave portions engaging the frame 42 and terminate at their upper edge in an outwardly projecting lip 72.
- the cross-sectional extent of the support 54 is slightly greater than that of the opening in the forward portion of the step 40 defined by the frame 42 and brace 41. In this manner, the support 54 is bindingly retained in said opening with the concave portions of its side walls 70 abutting the inwardly presented faces of the frame 42 and its lip 72 received over the upper faces of the frame 42 and brace arm 43. As shown in FIG. 2, the sections 66 of the wall 58 are more shallow in the forward portion of the support 54 in order to permit the step 40 to overlie said rod with its notches 46 extending thereover.
- the seat 20 and step 40 With the stool in its operative position, the seat 20 and step 40 will have their rear edges supported on the legs 10 by the rivets Z3 and 33, respectively. In such operative position, the forward portion of the seat 20 is supported on the upper ends of the legs 12 and the bight 18 interconnecting said legs.
- the step 40 projects forwardly of the front seat edge, and the forward portion of the step 40 is supported in horizontal orientation by the notches 46 being received over the transverse rod 48.
- the forward edge of the seat 20 is lifted upwardly to cause said seat to swing upwardly about the rivets 23 into a generally vertical retracted position. Since the seat is interconnected to the front legs 12 through the rod 26, upward movement of the seat will cause said front legs to swing upwardly into a retracted position in which they lie adjacent the plane of the rear legs. Upward movement of the legs 12 also causes the step 40 to swing upwardly about the axis of the rivets 33 and the interconnection of the step to the front legs provided by the links 50 so that said step also lies in a generally vertically retracted position adjacent the plane of the rear legs 10. Movement of the stool to its extended position is merely effected by swinging the seat downwardly to cause the legs 12 to swing forwardly and downwardly and the step 40 to swing downwardly for reception over the rod 48.
- a collapsible step stool comprising (a) a pair of interconnected rear legs,
- said seat and step being swingable with said front legs about their interconnections to the rear legs between a retracted position in which said seat, step, and front legs lie in generally vertical planes adjacent the rear legs and an operative position in which said front legs are disposed well forwardly of said rear legs and the forward portions of said seat and step are supported on said front legs and transverse rod, respectively, the front edge of said step projecting forwardly of the front seat edge in said operative position.
- a collapsible step stool as set forth in claim 1 in which (a) second link means are pivotally interconnected to said transverse rod and step for pivotally interconnecting said step and front legs, and
- a collapsible step stool comprising (a) a pair of interconnected rear legs,
- said seat and step being swingable with said leg frame about their interconnections to the rear legs between a retracted position in which said seat, step, and leg frame lie in generally vertical planes adjacent the rear legs and an operative position in which said front legs are disposed well forwardly of said rear legs and the forward portions of said seat and step are supported on said front legs and said second transverse rod, respectively, the front edge of said step projecting forwardly of the front seat edge in said operative position,
- a step comprising (a) a generally rectangular frame operatively supported on said legs,
- a foot support in the form of a resilient self-supporting envelope having upper and lower faces provided with aligned portions in abutting and spaced relationship to form a plurality of air filled channels between said upper and lower faces,
- said support having a peripherally extending lip received over the upper faces of said frame and brace for retaining said support thereon.
Landscapes
- Seats For Vehicles (AREA)
Description
Jan. 4, 1966 D. L- BATES ETAL 3,227,243
STEP STOOL Filed Jan. 6, 1964 5 Sheets-Sheet z IN VENTORS Jan. 4, 1966 D. BATES ETAL STEP STOOL 3 Sheets-Sheet 5 Filed Jan. 6, 1964 INVENT awn-J BY fewer 4. 4 544 msh, b fli Arron/5w.
United States Patent 3,227,243 STEP STOOL Donald L. Bates and Jerry L. Neal, Columbus, Ind., assignors to Hamilton Cosco, Inc., Columbus, Indz, a corporation of Indiana Filed Jan.6, 1964, Ser. No. 335,914 6 Claims. (Cl. 182--156) This invention relates to a collapsible step stool, and has for its object the provision of a step stool which can be collapsed for convenience of storage, which can be easily moved between collapsed and extended positions, which will be of attractive appearance, and which will prove sturdy and durable in use. It is a specific object of the invention to provide a foot support for a step which can be economically formed from plastic material and which will provide a resilient support.
In accordance with one form of the invention, there is provided a pair of interconnected rear legs. A pair of interconnected front legs are pivotally interconnected to said rear legs by link means for swinging movement between an operative position in which they are disposed Well forwardly of the rear legs and a retracted position in which they are disposed adjacent the rear legs. A seat is pivotallyinterconnected to said front and rear legs for swinging movement with said front legs between a retracted generally vertical position and an operative horizontal position in which it is supported on the rear legs and the upper ends of the front legs.
A transverse rod extends between the front legs below their interconnection to the seat. Said rod is pivotally interconnected by link means to the forward portion of a step pivotally interconnected adjacent its rear edge to the rear legs. Said step is movable with the front legs and seat between an operative position in which it is supported on said rod and the rear legs and a retracted position in which it lies in a generally vertical plane adjacent the rear legs. Desirably, said step comprises a generally rectangular frame having a brace extending transversely thereacross intermediate its length. A foot support in the form of a resilient self-supporting envelope having a plurality of air filled channels is bindingly retained in the opening defined by the step frame and brace.
Other objects and features of the invention will become apparent from the more detailed description which follows and from the accompanying drawings, in which: FIG. 1 is a front elevation of a step stool embodying the invention;
FIG. 2 is'a vertical section taken on the line 22 of FIG. 1 and showing said stool inv its retracted position in dotted lines; FIG. 3 is an enlarged fragmentary vertical section taken on the line 3-3 of FIG.- l;'
FIG. 4 is an enlarged fragmentary vertical section taken on the line' 4-4 of FIG. 1;
I FIG. 5 is'a 'top plan view of the step stool shown in f' FIG. 1, but showing portions of the seat broken away; and
FIG. 6 is 'a vertical section taken on the line 66 of FIG. 2. t m
As illustrated in the drawings,-the step stool is supported on pairs of front and rear legs 10 and 12. .Conveniently, the rear legs 10 are the ends of a length of metal tubingbent into a generally U-shaped configuration. The legs 10 are interconnected at their upper ends ice upper ends thereof. Conveniently, caps 19 are mounted on the lower ends of the front and rear legs to prevent said legs from marring the floor.
A seat 20 is pivotally interconnected to the legs 10 and 12. Conveniently, said seat may comprise a frame 22 formed from a length of metal tubing bent into a rectangular shape and pivotally interconnected adjacent its rear edge to the inner faces of the rear legs 10 as by rivets 23. Adjacent its front edge, the frame 22 is pivotally interconnected to the front legs 12 by a transversely extending rod 26 carried in the bight 18 and projecting outwardly from the legs 12 for reception in aligned openings formed in the adjacent inner faces of said frame. A rigid panel 24 having a padded covering 25 extending thereover is mounted on the frame 22 to form the supporting surface for the seat.
The pairs of legs 10 and 12 at the sides of the stool are pivotally interconnected by link arms 28 lying in the planes of the legs at each side of the stool. The arms 28 are identical in construction, and each has its end adjacent the leg 10 flattened and bent upwardly, as at 30, for reception in a vertically extending slot 32 formed in the forward face of the leg 10. The flattened arm end 30 is pivotally connected to the leg 10 as by a rivet 33. The opposite end of said rod is flattened and bent downwardly, as at 35, for reception in an elongated slot 36 formed in the rearwardly presented face of the leg 12. The rod end 35 is pivotally interconnected to said leg by a rivet 38.
A step 40 is supported on the legs 10 and 12 below the seat 20. Conveniently, said step comprises a frame 42 formed from a length of metal tubing bent into a rectangular shape. An L-sh'aped brace 41 having arms 43 and 44 extends transversely of the frame 42 intermediate its length and has its ends received in openings formed in the opposed inner faces of said frame. Adjacent its rear edge the frame 42 is pivotally connected to the inner faces of the legs 10 by the rivets 33 interconnecting the link arms 28 to said legs. The lateral stretches of the frame 42 are provided with notches 46 receivable over a transverse rod 48 extending between the front legs 12 for supporting the forward portion of the step 40 in a horizontal operative position on said front legs. The step is pivotally interconnected to the front legs 12 by a pair of links 50 each having one of its ends rotatably carried on the rod 48 and its opposite end fixedly connected to a rivet 52 mounted in a lateral stretch of the frame 42.
As shown in FIGS. 2 and 6, a foot support 54 is mounted on the frame 42 within the opening defined by the forward portion of said frame and the brace 41. Said support is in the form of :an envelope of a flexible self-supporting plastic material such as linear polyethylene or the like. Said support has upper and lower walls 56 and 58 which are integrally connected at the periphery of the support. Conveniently, a plurality of tread-forming ribs 59 are formed in the upper wall 56. Spaced fore and aft longitudinal portions 62 of the wall 58 project downwardly from the wall 56 to define a plurality of longitudinally extending air filled chambers 64. The wall 58 also has spaced transversely extending portions 66 projecting downwardly from the upper wall 56 which deby a bight 14 extendingtransvers ely of the stool. A
pair of transverse rods 16 are received in openings in'the adjacent inner faces of the legs 10 to act in combination with the bight 14 to form the stool back rest. The front legs 12 also constitute the ends of a length of metal tubing bent into a generally U-shape with the bight 18 of said length of tubing interconnecting said legs at the fine transversely extending air filled chambers 68. As shown, the portions of the lower wall 58 intermediate the portions 62 and 66 are integral with the upper wall- 56 to rigidly interconnect said upper and lower walls to stiffen the support 54. The support side walls 70 have concave portions engaging the frame 42 and terminate at their upper edge in an outwardly projecting lip 72. The cross-sectional extent of the support 54 is slightly greater than that of the opening in the forward portion of the step 40 defined by the frame 42 and brace 41. In this manner, the support 54 is bindingly retained in said opening with the concave portions of its side walls 70 abutting the inwardly presented faces of the frame 42 and its lip 72 received over the upper faces of the frame 42 and brace arm 43. As shown in FIG. 2, the sections 66 of the wall 58 are more shallow in the forward portion of the support 54 in order to permit the step 40 to overlie said rod with its notches 46 extending thereover.
With the stool in its operative position, the seat 20 and step 40 will have their rear edges supported on the legs 10 by the rivets Z3 and 33, respectively. In such operative position, the forward portion of the seat 20 is supported on the upper ends of the legs 12 and the bight 18 interconnecting said legs. The step 40 projects forwardly of the front seat edge, and the forward portion of the step 40 is supported in horizontal orientation by the notches 46 being received over the transverse rod 48.
In order to collapse the stool, the forward edge of the seat 20 is lifted upwardly to cause said seat to swing upwardly about the rivets 23 into a generally vertical retracted position. Since the seat is interconnected to the front legs 12 through the rod 26, upward movement of the seat will cause said front legs to swing upwardly into a retracted position in which they lie adjacent the plane of the rear legs. Upward movement of the legs 12 also causes the step 40 to swing upwardly about the axis of the rivets 33 and the interconnection of the step to the front legs provided by the links 50 so that said step also lies in a generally vertically retracted position adjacent the plane of the rear legs 10. Movement of the stool to its extended position is merely effected by swinging the seat downwardly to cause the legs 12 to swing forwardly and downwardly and the step 40 to swing downwardly for reception over the rod 48.
What is claimed is:
1. A collapsible step stool, comprising (a) a pair of interconnected rear legs,
(b) a pair of interconnected front legs formed from a U-shaped frame and interconnected at their upper ends by a transverse bight,
() link means pivotally interconnecting said front and rear legs,
((1) a seat pivotally interconnected to said rear legs and pivotally connected to said front legs by a rod carried in said transverse bight,
(e) a step pivotally interconnected to said front and rear legs below said seat, and
(f) a transverse rod interconnecting said front legs,
(g) said seat and step being swingable with said front legs about their interconnections to the rear legs between a retracted position in which said seat, step, and front legs lie in generally vertical planes adjacent the rear legs and an operative position in which said front legs are disposed well forwardly of said rear legs and the forward portions of said seat and step are supported on said front legs and transverse rod, respectively, the front edge of said step projecting forwardly of the front seat edge in said operative position.
2. A collapsible step stool as set forth in claim 1 in which (a) second link means are pivotally interconnected to said transverse rod and step for pivotally interconnecting said step and front legs, and
(b) said step having locking recesses formed therein for reception over said transverse rod for releasably locking the stool in extended operative position.
3. A collapsible step stool, comprising (a) a pair of interconnected rear legs,
(b) a front leg frame having a transverse bight interconnecting a pair of front legs at the upper ends thereof,
(c) first link means pivotally interconnecting said front and rear legs,
(d) a seat having a generally rectangular frame pivotally interconnected to the inner faces of said rear legs,
(e) a first transverse rod carried in said bight and projecting outwardly from said front legs and received in aligned openings in the inner faces of said seat frame,
(f) a second transverse rod interconnecting said front legs below said first transverse rod,
(g) a step pivotally interconnected to said rear legs and supported on said second transverse rod in horizontal operative position,
(h) second link means pivotally connected to said step and second transverse rod,
(i) said seat and step being swingable with said leg frame about their interconnections to the rear legs between a retracted position in which said seat, step, and leg frame lie in generally vertical planes adjacent the rear legs and an operative position in which said front legs are disposed well forwardly of said rear legs and the forward portions of said seat and step are supported on said front legs and said second transverse rod, respectively, the front edge of said step projecting forwardly of the front seat edge in said operative position,
(j) said step having locking recesses formed therein for reception over said second transverse rod for releasably locking the stool in extended operative position.
4. In combination with a step stool having a seat supported on a plurality of legs, a step comprising (a) a generally rectangular frame operatively supported on said legs,
(b) a transverse brace extending across said frame intermediate its length, and
(c) a foot support in the form of a resilient self-supporting envelope having upper and lower faces provided with aligned portions in abutting and spaced relationship to form a plurality of air filled channels between said upper and lower faces,
(d) said support having a peripherally extending lip received over the upper faces of said frame and brace for retaining said support thereon.
5. The invention as set forth in claim 4 in which (a) said channels extend longitudinally and transversely of said support.
6. The invention as set forth in claim 4 in which (a) said support has a cross-sectional extent slightly larger than the cross-sectional area of the opening defined by said frame and brace, and
(b) said support is bindingly retained in said opening.
References Cited by the Examiner UNITED STATES PATENTS 603,848 5/1898 Herder l82125 X 693,892 2/1902 Page 182125 701,532 6/1902 Bardin 182125 X 1,630,747 5/1927 Johnson 182-33 1,954,112 4/1934 Winter 182-125 2,875,815 3/1959 Gill 297153 3,025,101 3/1962 McKinnie 182125 X 3,059,722 10/1962 Rouse 182-33 3,106,296 10/1963 Walsh l08159 X FOREIGN PATENTS 1,115,183 10/1961 Germany.
HARRISON R. MOSELEY, Primary Examiner.
REINALDO P. MACHADO, CHARLES E. OCON- NELL, Examiners,
Claims (1)
1. A COLLAPSIBLE STEP STOOL, COMPRISING (A) A PAIR OF INTERCONNECTED REAR LEGS, (B) A PAIR OF INTERCONNECTED FRONT LEGS FORMED FROM A U-SHAPED FRAME AND INTERCONNECTED AT THEIR UPPER ENDS BY A TRANSVERSE BIGHT, (C) LINK MEANS PIVOTALL INTERCONNECTED TO SAID REAR LEGS AND REAR LEGS, (D) A SEAT PIVOTALLY INTERCONNECTED TO SAID REAR LEGS AND PIVOTALLY CONNECTED TO SAID FRONT LEGS BY A ROD CARRIED IN SAID TRANSVERSE BIGHT, (E) A STEP PIVOTALLY INTERCONNECTED TO SAID FRONT AND REAR LEGS BELOW SAID SEAT, AND (F) A TRANSVERSE ROD INTERCONNECTING SAID FRONT LEGS, (G) SAID SEAT AND STEP BEING SWINGABLE WITH SAID FRONT LEGS ABOUT THEIR INTERCONNECTIONS TO THE REAR LEGS BETWEEN A RETRACTED POSITION IN WHICH SAID SEAT, STEP, AND FRONT LEGS LIE IN GENERALLY VERTICAL PLANES ADJACENT THE REAR LEGS ARE DISPOSED WELL FORWARDLY WHICH SAID FRONT LEGS ARE DISPOSED WELL FORWARDLY OF SAID REAR LEGS AND THE FORAWRD PORTIONS OF SAID SEAT AND STEP ARE SUPPORTED ON SAID FRONT LEGS AND TRANSVERSE ROD, RESPECTIVELY, THE FRONT EDGE OF SAID STEP PROJECTING FORWARDLY OF THE FRONT SEAT EDGE IN SAID OPERATIVE POSITION.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US335914A US3227243A (en) | 1964-01-06 | 1964-01-06 | Step stool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US335914A US3227243A (en) | 1964-01-06 | 1964-01-06 | Step stool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3227243A true US3227243A (en) | 1966-01-04 |
Family
ID=23313759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US335914A Expired - Lifetime US3227243A (en) | 1964-01-06 | 1964-01-06 | Step stool |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3227243A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130316A (en) * | 1978-01-03 | 1978-12-19 | Comfort Lines, Inc. | Step ladder/chair combination |
| US4276955A (en) * | 1978-05-30 | 1981-07-07 | Tekron Licensing B.V. | Multiple-purpose work unit |
| US4320817A (en) * | 1979-09-07 | 1982-03-23 | Lear Siegler, Inc. | Combined chair and stool apparatus |
| US4503932A (en) * | 1981-01-07 | 1985-03-12 | Hilton (Products) Limited | Personnel elevating apparatus |
| US4529245A (en) * | 1982-07-20 | 1985-07-16 | Kassai Kabushikikaisha | Collapsible chair |
| US5064243A (en) * | 1989-04-11 | 1991-11-12 | Quain Kay D | Apparatus and method for use in hospitals to promote patient-caregiver contact |
| US20080042475A1 (en) * | 2006-07-21 | 2008-02-21 | Wright Douglas G | Folding table and chair |
| US20090114127A1 (en) * | 2006-07-21 | 2009-05-07 | Meco Corporation | Folding table and chair |
| US20100101012A1 (en) * | 2008-10-24 | 2010-04-29 | Sampson Alvin H | Bathing unit apparatus |
| US20110061573A1 (en) * | 2006-07-21 | 2011-03-17 | Meco Corporation | Folding table and chair |
| US8684452B2 (en) * | 2011-11-23 | 2014-04-01 | Mei Chuen Lin | High-seat folding chair having footrest |
| USD887740S1 (en) * | 2019-02-22 | 2020-06-23 | Anji Hengda Spring Co., Ltd. | Metal bar stool with swivel seat |
| USD888447S1 (en) * | 2019-02-22 | 2020-06-30 | Anji Hengda Spring Co., Ltd. | Metal bar chair with swivel seat |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US603848A (en) * | 1898-05-10 | Extension step-ladder | ||
| US693892A (en) * | 1899-05-12 | 1902-02-25 | Charles Ernest Page | Step-ladder and shelf combined. |
| US701532A (en) * | 1901-05-31 | 1902-06-03 | Emile Bardin | Double or step ladder. |
| US1630747A (en) * | 1926-09-13 | 1927-05-31 | August I Johnson | Combination stepladder and chair |
| US1954112A (en) * | 1931-10-12 | 1934-04-10 | Edward C Winter | Stepladder and safety lock therefor |
| US2875815A (en) * | 1957-06-24 | 1959-03-03 | Frank F Taylor Company | Tray construction and latching means therefor |
| DE1115183B (en) * | 1957-03-07 | 1961-10-12 | Wolf R Friedl | Transport plate |
| US3025101A (en) * | 1959-04-02 | 1962-03-13 | Roxton C Mckinnie | Combination chair and stool |
| US3059722A (en) * | 1960-12-16 | 1962-10-23 | Rouse Calvin | Folding combination step ladder and stool |
| US3106296A (en) * | 1961-10-31 | 1963-10-08 | Cal Dak Company | Tray tables |
-
1964
- 1964-01-06 US US335914A patent/US3227243A/en not_active Expired - Lifetime
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US603848A (en) * | 1898-05-10 | Extension step-ladder | ||
| US693892A (en) * | 1899-05-12 | 1902-02-25 | Charles Ernest Page | Step-ladder and shelf combined. |
| US701532A (en) * | 1901-05-31 | 1902-06-03 | Emile Bardin | Double or step ladder. |
| US1630747A (en) * | 1926-09-13 | 1927-05-31 | August I Johnson | Combination stepladder and chair |
| US1954112A (en) * | 1931-10-12 | 1934-04-10 | Edward C Winter | Stepladder and safety lock therefor |
| DE1115183B (en) * | 1957-03-07 | 1961-10-12 | Wolf R Friedl | Transport plate |
| US2875815A (en) * | 1957-06-24 | 1959-03-03 | Frank F Taylor Company | Tray construction and latching means therefor |
| US3025101A (en) * | 1959-04-02 | 1962-03-13 | Roxton C Mckinnie | Combination chair and stool |
| US3059722A (en) * | 1960-12-16 | 1962-10-23 | Rouse Calvin | Folding combination step ladder and stool |
| US3106296A (en) * | 1961-10-31 | 1963-10-08 | Cal Dak Company | Tray tables |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130316A (en) * | 1978-01-03 | 1978-12-19 | Comfort Lines, Inc. | Step ladder/chair combination |
| US4276955A (en) * | 1978-05-30 | 1981-07-07 | Tekron Licensing B.V. | Multiple-purpose work unit |
| US4320817A (en) * | 1979-09-07 | 1982-03-23 | Lear Siegler, Inc. | Combined chair and stool apparatus |
| US4440264A (en) * | 1979-09-07 | 1984-04-03 | Lear Siegler, Inc. | Locking assembly for a folding seat |
| US4503932A (en) * | 1981-01-07 | 1985-03-12 | Hilton (Products) Limited | Personnel elevating apparatus |
| US4529245A (en) * | 1982-07-20 | 1985-07-16 | Kassai Kabushikikaisha | Collapsible chair |
| US5064243A (en) * | 1989-04-11 | 1991-11-12 | Quain Kay D | Apparatus and method for use in hospitals to promote patient-caregiver contact |
| US20080042475A1 (en) * | 2006-07-21 | 2008-02-21 | Wright Douglas G | Folding table and chair |
| US20090114127A1 (en) * | 2006-07-21 | 2009-05-07 | Meco Corporation | Folding table and chair |
| US20110061573A1 (en) * | 2006-07-21 | 2011-03-17 | Meco Corporation | Folding table and chair |
| US20100101012A1 (en) * | 2008-10-24 | 2010-04-29 | Sampson Alvin H | Bathing unit apparatus |
| US8186550B2 (en) * | 2008-10-24 | 2012-05-29 | Sampson Alvin H | Bathing unit apparatus |
| US8684452B2 (en) * | 2011-11-23 | 2014-04-01 | Mei Chuen Lin | High-seat folding chair having footrest |
| USD887740S1 (en) * | 2019-02-22 | 2020-06-23 | Anji Hengda Spring Co., Ltd. | Metal bar stool with swivel seat |
| USD888447S1 (en) * | 2019-02-22 | 2020-06-30 | Anji Hengda Spring Co., Ltd. | Metal bar chair with swivel seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3227243A (en) | Step stool | |
| US4266807A (en) | Collapsible frame structure for a child's push chair | |
| US3025106A (en) | Foldable seating structure | |
| US3390893A (en) | Structures for folding baby-carriages, chairs, and the like | |
| US1942112A (en) | Collapsible chair | |
| US2982562A (en) | Child's furniture components | |
| US4258827A (en) | Multi-purpose piece of furniture for use as chair and step-ladder | |
| US3084356A (en) | Water walkers | |
| US3228724A (en) | Collapsible lawn chair | |
| US2486015A (en) | Collapsible wheel chair | |
| US3127953A (en) | Safety ladder | |
| US1608911A (en) | Folding chair | |
| US2991486A (en) | Foldable play pen | |
| US4008918A (en) | Chairs | |
| US1639074A (en) | Canopy for chairs and the like | |
| US3127620A (en) | Combination playpen and crib | |
| US3142512A (en) | Infant's chair | |
| US3062583A (en) | Infant's car seat and crib | |
| US3100652A (en) | Foldable baby stroller | |
| US3071409A (en) | Folding chair | |
| US3739876A (en) | Combination step ladder and work support | |
| US2475797A (en) | Collapsible cart | |
| US2944593A (en) | Collapsible seat for golfers | |
| US2714925A (en) | Contour lounge chair | |
| US2991123A (en) | Folding chair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: W.G.G. & COMPANY, INC., 2525 STATE ST., COLUMBUS, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:COSCO, INC.,;REEL/FRAME:004134/0949 Effective date: 19830310 |
|
| AS | Assignment |
Owner name: COSCO, INC. Free format text: CHANGE OF NAME;ASSIGNOR:W.G.G. & COMPANY, INC.;REEL/FRAME:004149/0091 Effective date: 19830311 |