Patent US4095843A successfully refreshed from Google Patents.
US4095843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Height adjustment apparatus for child support
Assignee: Individual
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Filing: 1977-02-02
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Granted: 1978-06-20
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Expires: 1997-02-02
Abstract
Abstract The following specification describes a baby feeding table or high chair raised to a feeding position or lowered to a play position by changing the angle between one pair of parallel tubular legs pivotally connected to another pair of parallel tubular legs intermediate their ends. The one pair of parallel legs are pivotally secured to the table top at positions spaced intermediate the baby's chair and the table edge and the other pair of parallel legs are pivotally supported from the table top by a U-shaped lever bar, which is pivotally connected with both the other pair of legs and the table top at positions spaced intermediate the chair and the table edge. A cross bar extends between the legs and has ends overlappingly engaged with one pair of legs coincident with the pivot connection to other pair of legs for stabilizing the legs. Washers in the cross bar secure the pivot pins between the legs. The bar also carries a pivotable U-shaped latch rod for engaging the lever bar to secure the table in the feeding position. Thrust washers located between the legs at the respective pivots distribute the forces and stabilize the connections. The legs are formed of separable upper and lower sections for facile packing and shipping. The sections include plastic stabilizing rings for reinforcing the assembly sections, which are secured to each other by a spring biased pin in one section engaging a hole in the mating section. Casters are provided on selected lower leg sections for rolling support of the table.
Inventors
- 👤 James C. Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:21
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/002; A47D1/004; A47D1/02; A47D1/023; A47D3/00; A47D3/005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
319 words
A height adjustment arrangement for supporting on a floor a baby feeding table including a table top carrying a seat foldable between a closed position and an open position suspended from an opening in said top and spaced from the perimeter of said table top, the improvement comprising: a first pair of parallel legs having spaced ends, first pivot means for each leg pivotally connecting along a common axis the respective leg adjacent one end of each leg with said table top at a respective spaced position located intermediate said seat and said perimiter for rotation about a common axis, another pair of parallel legs having spaced ends, first and second intermediate pivot means pivotally connecting a respective one leg of said other pair with a respective leg of said first pair at a position intermediate the ends of each connected leg, a tubular cross bar extending past opposite edge portions of said seat and between said first and said second intermediate pivot means, first and second securing means held in said cross bar adjacent a respective end of the cross bar for securing the first and second intermediate pivot means independently to said cross bar at respective positions spaced apart by a distance greater than the distance between opposite edge portions of said seat, a U-shaped lever bar pivotally connected with each leg of said other pair along a common axis spaced from said intermediate pivot means and from the ends of said lever bar, last pivot means pivotally connecting said lever bar with said table top along a common axis at a position intermediate said seat and the perimiter of said table top and spaced from the first pivot means, and locking means for locking said first pair of legs against pivotal movement relative said other pair of legs in each of two angular positions of said first pair of legs relative said other pair of legs.
Claim 2
Dependent Claim
319 words
A height adjustment arrangement for supporting on a floor a baby feeding table including a table top carrying a seat foldable between a closed position and an open position suspended from an opening in said top and spaced from the perimeter of said table top, the improvement comprising: a first pair of parallel legs having spaced ends, first pivot means for each leg pivotally connecting along a common axis the respective leg adjacent one end of each leg with said table top at a respective spaced position located intermediate said seat and said perimiter for rotation about a common axis, another pair of parallel legs having spaced ends, first and second intermediate pivot means pivotally connecting a respective one leg of said other pair with a respective leg of said first pair at a position intermediate the ends of each connected leg, a tubular cross bar extending past opposite edge portions of said seat and between said first and said second intermediate pivot means, first and second securing means held in said cross bar adjacent a respective end of the cross bar for securing the first and second intermediate pivot means independently to said cross bar at respective positions spaced apart by a distance greater than the distance between opposite edge portions of said seat, a U-shaped lever bar pivotally connected with each leg of said other pair along a common axis spaced from said intermediate pivot means and from the ends of said lever bar, last pivot means pivotally connecting said lever bar with said table top along a common axis at a position intermediate said seat and the perimiter of said table top and spaced from the first pivot means, and locking means for locking said first pair of legs against pivotal movement relative said other pair of legs in each of two angular positions of said first pair of legs relative said other pair of legs.
Claim 3
Dependent Claim
77 words
The improvement claimed in claim 1 in which each leg has an intermediate portion extending in spaced substantially parallel relationship to said floor and a free end extending from said intermediate portion transversly to said floor in each of said angular positions to transmit forces between said table top and floor along the axis of each leg, and a caster secured solely to the free end of each of said other legs for engagement with said floor.
Claim 4
Dependent Claim
35 words
The improvement claimed in claim 1 in which said first pivot means and said last pivot means are spaced from each other by a distance greater than the distance between respective edges of said seat.
Claim 5
Dependent Claim
26 words
The improvement claimed in claim 2 in which said cross bar has ends in overlapping engagement with said each leg of said selected pair of legs.
Claim 6
Dependent Claim
34 words
The improvement claimed in claim 4 in which said first and second intermediate pivot means each includes a thrust washer between each leg of one pair and a respective leg of the other pair.
Claim 7
Dependent Claim
42 words
The improvement claimed in claim 5 in which said locking means includes a latch pivotally carried by one of said bars and having a leg for overlappingly engaging the other of said bars in one of said angular positions of said legs.
Claim 8
Dependent Claim
27 words
The improvement claimed in claim 1 in which said locking means includes a bent end portion on a leg of said other pair for engaging said table.
Claim 9
Dependent Claim
27 words
The improvement claimed in claim 1 in which said first pivot means is spaced outwardly of the pivot connection between said lever bar and said table top.
Claim 10
Dependent Claim
49 words
The improvement claimed in claim 1 in which the distance between said first pivot means and each of said intermediate pivot means is greater than the distance between said last pivot means and the pivot connection of said lever bar to each leg of said other pair of legs.
Claim 11
Dependent Claim
50 words
The improvement claimed in claim 9 in which said lever bar is U-shaped and the back leg is spaced from said last pivot means a greater distance than the distance between said last pivot means and the pivot connection of said lever bar to each leg of said other pair.
Claim 12
Dependent Claim
63 words
The improvement claimed in 2 in which each leg comprises a pair of sections with one section of each leg having a straight configuration and receiving each pivot connection for the respective leg, and the other section of each leg includes said intermediate portion and said free end portion, and a spring biased pin securing each intermediate portion to a respective one section.
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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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |