US4822030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Juvenile walker
Assignee: R/D/ & D Inc DAYTON OHIO A Corp OF OHIO
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Filing: 1987-12-28
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Granted: 1989-04-18
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Expires: 2007-12-28
Abstract
Abstract This invention is concerned with a portable juvenile walker which may also function as a rocker. The walker has a seat portion. A tray may be associated with the seat portion. The seat portion is connected to a base frame which is substantially rectangular. The base frame is further hollow and as a cross section which is generally U shaped. A plurality of U shaped support bars are pivotally connected to the base frame and are of such a size that they can nest inside the bottom side of the base frame. Each of the U shaped support bars incorporates a plurality of wheels or casters. The terminal ends of the U shaped support bars are pivotally connected to the base frame. Each of the U shaped support bars is associated with a latch means whereby, the U shaped support bars can be locked into a plurality of positions. The bottom edges of the base frame may be planar or arcuate such that the composite device can function as a seat, or a rocker when the base frame engages the floor.
Inventors
- 👤 Richard E. Cone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:26
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/002; A47C7/006; A47D; A47D13/00; A47D13/04; A47D13/043
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
145 words
A juvenile walker comprising a seat portion, a support structure operatively connected to said seat portion; said support structure being operatively connected to a base frame which is substantially rectangular and has a hollow U shaped cross section, the arms of the U shaped cross section being downwardly depending; two U shaped support bars oppositely directed and each having its terminal ends centrally directed and pivotally. connected to the underside of said base frame, said U shaped support bars being of such a size that they are adapted to nest inside of said base frame, a plurality of casters or wheels being attached to each of said U shaped support bars. and latches associated with both the U shaped support bars and base frame for biasing and retaining said U shaped support bars for engaging or disengaging the castors or wheels with a support surface.
Claim 2
Dependent Claim
145 words
A juvenile walker comprising a seat portion, a support structure operatively connected to said seat portion; said support structure being operatively connected to a base frame which is substantially rectangular and has a hollow U shaped cross section, the arms of the U shaped cross section being downwardly depending; two U shaped support bars oppositely directed and each having its terminal ends centrally directed and pivotally. connected to the underside of said base frame, said U shaped support bars being of such a size that they are adapted to nest inside of said base frame, a plurality of casters or wheels being attached to each of said U shaped support bars. and latches associated with both the U shaped support bars and base frame for biasing and retaining said U shaped support bars for engaging or disengaging the castors or wheels with a support surface.
Claim 3
Dependent Claim
32 words
The juvenile walker of claim 1 wherein the bottom edges of the base frame are planar and wherein portions of said U shaped support bars are coated with a high friction material.
Claim 4
Dependent Claim
17 words
The juvenile walker of claim 1 wherein the bottom outside edges of the base frame are arcuate.
Claim 5
Dependent Claim
26 words
The juvenile walker of claim 1 wherein the bytes of the U shaped support bars are substantially parallel with the leading edge of the base frame.
Claim 6
Dependent Claim
28 words
The juvenile walker of claim 1 wherein the bytes of the U shaped support bars are substantially at right angles to the leading edges of the base frame.
Claim 7
Dependent Claim
32 words
The juvenile walker of claim 1 wherein the base frame incorporates a plurality of U shaped saddles to which are pivotally attached to the terminal ends of the U shaped support bars.
Claim 8
Dependent Claim
41 words
The juvenile walker of claim 1 wherein the base frame incorporates two centrally located U shaped saddles which are integral or attached to said base frame, the terminal ends of the U shaped support bars being pivotally attached to said saddles.
Claim 9
Dependent Claim
17 words
The juvenile walker of claim 1 wherein the seat portion is further associated with a tray section.
Claim 10
Dependent Claim
12 words
The juvenile walker of claim 1 wherein the support structure is rigid.
Claim 11
Dependent Claim
12 words
The juvenile walker of claim 1 wherein the support structure is collapsible.
Claim 12
Dependent Claim
17 words
The juvenile walker of claim 10 wherein the seat portion is further associated with a tray section,
Claim 13
Dependent Claim
22 words
The juvenile walker of claim 1 wherein the bytes of each of said U shaped support bars incorporate two wheels or casters.
Claim 14
Dependent Claim
15 words
The juvenile walker of claim 1 wherein the seat portion is a preformed polymeric shell.
Claim 15
Dependent Claim
14 words
The juvenile walker of claim 1 wherein the seat portion is a flexible web.
Claim 16
Dependent Claim
40 words
The juvenile walker of claim 11 wherein the support structure comprises a pair of X frames the upper ends of which are pivotally connected to said tray and the lower ends of which are pivotally connected to said base frame.
Claim 17
Dependent Claim
19 words
The juvenile walker of either claims 4 or 7 wherein the bottom edges of the base frame are planar.
Claim 18
Dependent Claim
19 words
The juvenile walker of either claims 11 or 16 wherein the bottom edges of the base frame are planar.
Claim 19
Dependent Claim
32 words
Thejuvenile walker of either claims 4 or 7 wherein the bottom edges of the base frame, which are at right angles to the bytes of the U shaped support bars, are arcuate.
Claim 20
Dependent Claim
33 words
The juvenile walker of either claim 11 or 16 wherein the bottom edges of the base frame, which are at right angles to the bytes of the U shaped support bars, are arcuate.
Claim 21
Dependent Claim
24 words
The juvenile walker of claim 19 wherein the arc of the outside bottom edges of the base frame is approximately a 30 inch radius.
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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) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |