Patent US4963115A successfully refreshed from Google Patents.
US4963115A
Expired / Lapsed
US
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Multipurpose container toy with mountable wheels
Assignee: Smart Design Inc
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Filing: 1989-12-18
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Granted: 1990-10-16
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Expires: 2009-12-18
Abstract
Abstract A construction toy set whose main component is a cubical open-top box, the bottom and side walls of which are divided into quadrants, each having a keyhole therein and a coupling collar encircling the keyhole and projecting from the quadrant. Also included in the set are cylindrical spacers that fit over the collars and extend therefrom, wheels having cylindrical hubs that can slip over the spacers which then function as axles, and hub caps that rest against the outer end of the spacers or the wheel hubs, each cap having a center keyhole matching the quadrant keyhole. The components can be assembled and interconnected to create different structures by means of connector bolts each having a key at one end capable of passing through the keyholes. Thus to create a wheeled wagon from the components, spacers are fitted over quadrant coupling collars on opposing side walls of the box to serve as axles for front and rear wheels, hub being applied to the outer ends of the spacers, after whcih a connector bolt is inserted in the center keyhole of each hub cap. The key of the bolt passes through the related quadrant keyhole, after which the bolt is turned to a locking position in which the key is not of registration with the quadrant keyhole.
Inventors
- 👤 Stowell Davin
- 👤 Jean M. Gerth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:17
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/262; B; B60; B60B; B60B37/00; B60B37/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
253 words
A construction toy set whose components are interconnectable to create various structures, depending on how the components are assembled, said set comprising: (a) at least one open-top cubical box whose bottom and side walls are divided into quadrants, each having a keyhole therein encircled by a coupling collar projecting from the quadrant; (b) a plurality of like cylindrical spacers which are fittable on respective collars and extend therefrom; (c) a plurality of wheels having a cylindrical hub of substantially the same length as said spacers and a larger diameter, whereby each wheel may be slipped over a spacer extending from a coupling collar, the spacer then acting as an axle for the wheel; (d) a plurality of like hub caps adapted to lie against an outer end of the spacer and against the hub of said wheel, each hub cap having a membrane with a center keyhole whose shape matches the quadrant keyhole; and (e) a plurality of like connector bolts each having a shank whose length is substantially equal to that of said spacers and a key at the end of the shank which is shaped to be admissible in said quadrant keyhole and said membrane center keyhole, whereby when a connector bolt is inserted in the membrane center keyhole and the key passes through the quadrant keyhole, and the shank of the bolt then extends through a spacer, the connector bolt can be locked by turning the bolt to cause the key to fall out of registration with the quadrant keyhole.
Claim 2
Dependent Claim
253 words
A construction toy set whose components are interconnectable to create various structures, depending on how the components are assembled, said set comprising: (a) at least one open-top cubical box whose bottom and side walls are divided into quadrants, each having a keyhole therein encircled by a coupling collar projecting from the quadrant; (b) a plurality of like cylindrical spacers which are fittable on respective collars and extend therefrom; (c) a plurality of wheels having a cylindrical hub of substantially the same length as said spacers and a larger diameter, whereby each wheel may be slipped over a spacer extending from a coupling collar, the spacer then acting as an axle for the wheel; (d) a plurality of like hub caps adapted to lie against an outer end of the spacer and against the hub of said wheel, each hub cap having a membrane with a center keyhole whose shape matches the quadrant keyhole; and (e) a plurality of like connector bolts each having a shank whose length is substantially equal to that of said spacers and a key at the end of the shank which is shaped to be admissible in said quadrant keyhole and said membrane center keyhole, whereby when a connector bolt is inserted in the membrane center keyhole and the key passes through the quadrant keyhole, and the shank of the bolt then extends through a spacer, the connector bolt can be locked by turning the bolt to cause the key to fall out of registration with the quadrant keyhole.
Claim 3
Dependent Claim
18 words
A set as set forth in claim 1, wherein all the components are fabricated of synthetic plastic material.
Claim 4
Dependent Claim
22 words
A set as set forth in claim 1, wherein said box is divided into quadrants by intersecting vertical and horizontal reinforcing ridges.
Claim 5
Dependent Claim
24 words
A set as set forth in claim 1, wherein the inner diameter of each spacer substantially matches the outer diameter of each coupling collar.
Claim 6
Dependent Claim
25 words
A set as set forth in claim 1, in which each wheel includes fin-like spokes radiating from the hub and extending to an annular rim.
Claim 7
Dependent Claim
29 words
A set as set forth in claim 1, wherein each hub cap has an annular flange having a diameter which exceeds the diameters of the hub and the spacers.
Claim 8
Dependent Claim
15 words
A set as set forth in claim 1, wherein said membrane is convex and deflectable.
Claim 9
Dependent Claim
29 words
A set as set forth in claim 7, wherein said bolt has a disc-shaped head which presses against said membrane when the hub cap is affixed to the box.
Claim 10
Dependent Claim
22 words
A set as set forth in claim 1, wherein said center and quadrant keyholes have a winged configuration and a circular opening.
Claim 11
Dependent Claim
34 words
A set as set forth in claim 9, wherein said key has a winged configuration and a disc at the junction of the key and the shank, which disc fits into the circular opening.
Claim 12
Dependent Claim
16 words
A set as set forth in claim 10, wherein said shank has a cruciform cross section.
Claim 13
Dependent Claim
44 words
A set as set forth in claim 10, wherein each side wall has at its upper end a bearing hole adjacent a corner of the box whereby each side wall has a pair of holes to receive the hinge pin of a removable cover.
Claim 14
Dependent Claim
18 words
A set as set forth in claim 12, wherein said cover has parallel side flanges at its underside.
Claim 15
Dependent Claim
24 words
A set as set forth in claim 13, wherein each side flange has a flexible free tongue on which a hinge pin is mounted.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-15 | 1994-04-16 | 1994-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-15 | 1998-04-16 | 1998-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-15 | 2002-04-16 | 2002-10-16 | $7700.00 | Window Closed / Lapsed |