Patent US4256325A successfully refreshed from Google Patents.
US4256325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible frames for baby carriers
Assignee: Individual
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Filing: 1978-07-24
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Granted: 1981-03-17
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Expires: 1998-07-24
Abstract
Abstract A series of related collapsible lightweight frames are provided which are adapted to be used in conjunction with carriers or seats to form strollers, carriages, high chairs, and the like.
Inventors
- 👤 Henry Fleischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:46
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/08; B62B7/083; B62B2206/00; B62B2206/02; B62B7/064
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
249 words
A collapsible stroller frame comprising, in combination, seat support means including spaced apart side portions, a rear portion, intermediate portion and front portion, a pair of spaced apart front leg members, rear portions of said spaced apart side portions of said seat support means being pivotally connected to upper portions of said front leg members, a pair of spaced apart rear leg members upper portions of which are slidably engaged by and connected to the spaced apart side portions of said seat support means forwardly of the pivoted connections of said front leg members, handle support means a lower portion of which is connected to said seat support means, handle means pivotally connected to an upper portion of said handle support means, side bracing means one end portion of which is pivotally connected to a front portion of said seat support means and the other end portion of which is connected to said handle means above the pivotal connections of the handle means and the upper portions of the handle support means, whereby upon pivoting said handle means downwardly toward said seat support means, said side bracing means is moved downwardly causing the front portion of said seat support means to pivot downwardly and toward said front leg members, and said rear leg members to slide forward on said seat support means toward the front portion thereof, whereby said rear leg members are lifted under said seat support means and extend in opposite directions from said front leg members.
Claim 2
Dependent Claim
249 words
A collapsible stroller frame comprising, in combination, seat support means including spaced apart side portions, a rear portion, intermediate portion and front portion, a pair of spaced apart front leg members, rear portions of said spaced apart side portions of said seat support means being pivotally connected to upper portions of said front leg members, a pair of spaced apart rear leg members upper portions of which are slidably engaged by and connected to the spaced apart side portions of said seat support means forwardly of the pivoted connections of said front leg members, handle support means a lower portion of which is connected to said seat support means, handle means pivotally connected to an upper portion of said handle support means, side bracing means one end portion of which is pivotally connected to a front portion of said seat support means and the other end portion of which is connected to said handle means above the pivotal connections of the handle means and the upper portions of the handle support means, whereby upon pivoting said handle means downwardly toward said seat support means, said side bracing means is moved downwardly causing the front portion of said seat support means to pivot downwardly and toward said front leg members, and said rear leg members to slide forward on said seat support means toward the front portion thereof, whereby said rear leg members are lifted under said seat support means and extend in opposite directions from said front leg members.
Claim 3
Dependent Claim
43 words
The frame as defined in claim 1 wherein said seat support means includes slot means extending toward said front portion of said seat support means, and said upper portions of said pair of rear leg members are slidably engaged in said slot means.
Claim 4
Dependent Claim
19 words
The frame as defined in claim 2 wherein said slot means comprise rail or track means or groove means.
Claim 5
Dependent Claim
20 words
The frame as defined in claim 1 wherein said handle support means comprise an extension of said front leg members.
Claim 6
Dependent Claim
29 words
The frame as defined in claim 1 wherein said handle support means comprise a pair of spaced apart handle support members each pivotally connected with said seat support means.
Claim 7
Dependent Claim
21 words
The frame as defined in claim 5 further including collapsible handle bracing means connected to said pair of handle support members.
Claim 8
Dependent Claim
36 words
The frame as defined in claim 6 wherein said collapsible handle bracing means includes at least a pair of handle support struts pivotally connected to each other and each pivotally connected to a handle support member.
Claim 9
Dependent Claim
17 words
The frame as defined in claim 5 further including retractable brace means associated with said handle means.
Claim 10
Dependent Claim
33 words
The frame as defined in claim 8 wherein said retractable brace means comprises a pair of interacting spring loaded pin means each adapted to engage an opening in each of said handle means.
Claim 11
Dependent Claim
56 words
The frame as defined in claim 9 including a pair of oppositely disposed gripping means each connected to one of said spring-loaded pin means whereby moving of said gripping means toward each other causes each of said spring-loaded pins to be withdrawn from its respective opening in said handle means thereby initiating collapsing of said frame.
Claim 12
Dependent Claim
38 words
The frame as defined in claim 1 wherein a left front leg member and a left rear leg member cross each other at a point below said seat support means and intermediate the ends of said leg members.
Claim 13
Dependent Claim
45 words
The frame as defined in claim 11 wherein said right front leg member is pivotally connected to said right rear leg member at said crossing point and said left front leg member is pivotally connected to said left rear leg member at said crossing point.
Claim 14
Dependent Claim
23 words
The frame as defined in claim 1 further including lock means associated with said handle means to prevent accidental collapsing of said frame.
Claim 15
Dependent Claim
15 words
The frame as defined in claim 13 wherein said lock means comprise spring-loaded plunger means.
Claim 16
Dependent Claim
22 words
The frame as defined in claim 1 further including rolling means connected to a lower portion of each of said leg members.
Claim 17
Dependent Claim
19 words
The frame as defined in claim 1 further including leg extendable means associated with each of said leg members.
Claim 18
Dependent Claim
15 words
The frame as defined in claim 16 wherein said leg extendable means comprise telescoping means.
Claim 19
Dependent Claim
23 words
The frame as defined in claim 1 further including at least one handle connected to said upper segment of said handle support means.
Claim 20
Dependent Claim
108 words
The frame as defined in claim 1 wherein said seat support means including said spaced apart side portions include at least a first pair of normally horizontally disposed support struts pivotally connected via first intermediate pivot means to each other at each of one end thereof and each pivotally connected at the other end thereof via end pivot means to one of said side portions, whereby upon collapsing of said frame said two support struts are adapted to pivot about said intermediate pivot means and said end pivot means, said support struts thereby assuming a V shape causing said spaced apart side portions to move toward each other.
Claim 21
Dependent Claim
69 words
The frame as defined in claim 19 further including a second pair of normally horizontally disposed support struts pivotally connected via a second intermediate pivot means to each other at one end thereof and each pivotally connected at the other end thereof via end pivot means to one of said side portions of said seat support means, and cross strut means connecting said first and second intermediate pivot means.
Claim 22
Dependent Claim
64 words
The frame as defined in claim 20 further including at least two angled strut means one end of each being pivotally connected to one of said first normally horizontally disposed support struts on either side of said first intermediate pivot means, and the other end of each angled strut means being pivotally connected to one of said side portions of said seat support structure.
Claim 23
Dependent Claim
22 words
The frame as defined in claim 1 including telescoping leg brace means connecting said front leg members and said rear leg members.
Claim 24
Dependent Claim
32 words
The frame as defined in claim 1 wherein said leg members are extendable to a desired height whereby said frame may be employed as a stroller, youth chair, or a high chair.
Claim 25
Dependent Claim
14 words
The frame as defined in claim 1 wherein said handle support means are extendable.
Claim 26
Dependent Claim
39 words
The frame as defined in claim 1 wherein the right front leg member and right rear leg member include a common pivot point and the left front leg member and left rear leg member include a common pivot point.
Claim 27
Dependent Claim
57 words
The frame as defined in claim 1 further including track or rail means disposed on said seat support means, said upper ends of said back legs being adapted to slide forwardly on said track or rail means upon collapsing of said frame and said seat support means being adapted to pivot downwardly upon collapsing of said frame.
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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |