US3847406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding stroller
Assignee: BROW GROUP RECREATIONAL PRODUCTS INC
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Filing: 1973-03-27
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Granted: 1974-11-12
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Expires: 1993-03-27
Abstract
Abstract A lightweight folding stroller which is easily folded and erected by a single hand or arm operation. A pusher handle frame is pivoted at one end to a rear wheel frame, and a front wheel frame is also pivoted to the pusher handle frame slightly inwardly of the point of connection of the rear frame to the handle frame. A seat is pivoted both to the rear frame and the front frame, and latching means is provided to hold the stroller erected, said latching means comprising rings which are easily moved to a position to allow the stroller to fold with a single one-hand operation.
Inventors
- 👤 B Burnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:31
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/062; B62B7/08; B62B2205/00; B62B2205/20; B62B7/004; B62B7/064
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
126 words
A folding stroller comprising a front frame, a rear frame, a pusher handle frame, and a seat frame, and wheels on the front and rear frames at corresponding ends thereof, first means for pivotally connecting the end of the front frame opposite the wheels to the pusher handle frame, second means for pivotally connecting the ends of the rear frame opposite the wheels to the pusher handle frame, said second pivot means being spaced from said first pivot means toward said wheels, means pivotally connecting said seat frame to said rear frame and front frame intermediate the ends of respectively said rear and front frame, and releasable locking means locking the front frame with respect to the pusher handle frame in erected position of the stroller.
Claim 2
Dependent Claim
126 words
A folding stroller comprising a front frame, a rear frame, a pusher handle frame, and a seat frame, and wheels on the front and rear frames at corresponding ends thereof, first means for pivotally connecting the end of the front frame opposite the wheels to the pusher handle frame, second means for pivotally connecting the ends of the rear frame opposite the wheels to the pusher handle frame, said second pivot means being spaced from said first pivot means toward said wheels, means pivotally connecting said seat frame to said rear frame and front frame intermediate the ends of respectively said rear and front frame, and releasable locking means locking the front frame with respect to the pusher handle frame in erected position of the stroller.
Claim 3
Dependent Claim
10 words
The stroller of claim 1 wherein the frame and U-shaped.
Claim 4
Dependent Claim
21 words
The stroller of claim 2 wherein the means interpivoting the frames are located adjacent the open ends of the U-shaped frames.
Claim 5
Dependent Claim
23 words
The stroller of claim 1 wherein the releasable locking means comprises a loose ring on the front frame and the pusher handle frame.
Claim 6
Dependent Claim
41 words
The stroller of claim 1 wherein the locking means comprises a loose ring embracing the adjacent ends of the pusher handle frame and the front frame between the pivots of the front and rear frames respectively to the pusher handle frame.
Claim 7
Dependent Claim
32 words
The stroller of claim 5 including means to support the ring in free condition thereof with respect to the pusher handle frame and the front frame to allow folding of the stroller.
Claim 8
Dependent Claim
164 words
A folding stroller comprising a U-shaped front frame, a U-shaped rear frame, a U-shaped pusher handle frame, a seat frame, wheels on both of said frames adjacent the closed ends of the respective Us, the front frame being longer than the rear frame, first means for pivotally connecting the end of the front frame opposite the wheels to the pusher handle frame, second means for pivotally connecting the end of the rear frame opposite the wheels to the pusher handle frame, said second pivot means being spaced from said first pivot means toward said wheels, means pivotally connecting said seat frame to said rear frame and front frame intermediate the ends of respectively said rear and front frame, and movable locking means encompassing the upper end portions of the ends of the legs forming the U-shaped front frame and the lower end portions of the ends of the legs forming the U-shaped pusher handle frame, latching the same in erect condition of the stroller.
Claim 9
Dependent Claim
164 words
A folding stroller comprising a U-shaped front frame, a U-shaped rear frame, a U-shaped pusher handle frame, a seat frame, wheels on both of said frames adjacent the closed ends of the respective Us, the front frame being longer than the rear frame, first means for pivotally connecting the end of the front frame opposite the wheels to the pusher handle frame, second means for pivotally connecting the end of the rear frame opposite the wheels to the pusher handle frame, said second pivot means being spaced from said first pivot means toward said wheels, means pivotally connecting said seat frame to said rear frame and front frame intermediate the ends of respectively said rear and front frame, and movable locking means encompassing the upper end portions of the ends of the legs forming the U-shaped front frame and the lower end portions of the ends of the legs forming the U-shaped pusher handle frame, latching the same in erect condition of the stroller.
Claim 10
Dependent Claim
13 words
The stroller of claim 7 wherein the locking means comprises a movable ring.
Claim 11
Dependent Claim
30 words
The stroller of claim 8 including means for supporting the ring in a position releasing the front frame from the pusher handle frame so that the stroller may be folded.
Claim 12
Dependent Claim
54 words
The stroller of claim 7 wherein the adjacent, interpivoted ends of the rear frame and the pusher handle frame form a past dead connection relative to the front frame and the seat frame, and the movable locking means comprises a loose rim embracing the ends of the pusher handle frame and the front frame.
Claim 13
Dependent Claim
21 words
The stroller of claim 7 wherein the seat frame includes a cross member serving as a handle with the stroller folded.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |