Patent US4852837A successfully refreshed from Google Patents.
US4852837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable leg assembly
Assignee: Fisher Price Inc
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Filing: 1985-08-02
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Granted: 1989-08-01
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Expires: 2005-08-02
Abstract
Abstract A detachable leg assembly for an object includes a substantially cylindrical leg having a recess adjacent a first end thereof and a tapered leg-receiving chamber, larger than the cross-sectional area of the leg, having a locking projection on one wall thereof adapted to engage the recess when the leg is positioned in the chamber; a wedge-shaped holding member adapted, when positioned within the chamber, to substantially fill the space between the leg and the wall of the chamber; and means for anchoring the holding member in position.
Inventors
- 👤 Barry Merten
- 👤 Gordon W. Kamman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:16
CPC Classifications
A; A47; A47B; A47B13/00; A47B13/02; A47B13/021; A47B2013/022; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
76 words
A leg assembly for an object comprising: a leg receiving chamber in said object; a projection attached to said chamber; a leg having a first end disposed within said chamber; a recess formed in said leg adjacent the first end of said leg and engaging said projection; a wedge disposed at least partially within said chamber for securing said leg therein with said recess engaging said projection; and means for fixing said wedge within said chamber.
Claim 2
Dependent Claim
76 words
A leg assembly for an object comprising: a leg receiving chamber in said object; a projection attached to said chamber; a leg having a first end disposed within said chamber; a recess formed in said leg adjacent the first end of said leg and engaging said projection; a wedge disposed at least partially within said chamber for securing said leg therein with said recess engaging said projection; and means for fixing said wedge within said chamber.
Claim 3
Dependent Claim
40 words
The leg assembly of claim 1 wherein said leg receiving chamber is characterized by a substantially oval cross-section having a first end having a radius of curvature matching the leg and a second end having a larger radius of curvature.
Claim 4
Dependent Claim
69 words
A leg assembly for an object comprising: a leg receiving chamber in said object; a projection extending into said chamber; a leg having a first end disposed within said chamber; a recess formed in said leg and engaging said projection; a wedge disposed at least partially within said chamber for securing said leg therein; a boss attached to said wedge; and means for anchoring said boss adjacent said chamber.
Claim 5
Dependent Claim
69 words
A leg assembly for an object comprising: a leg receiving chamber in said object; a projection extending into said chamber; a leg having a first end disposed within said chamber; a recess formed in said leg and engaging said projection; a wedge disposed at least partially within said chamber for securing said leg therein; a boss attached to said wedge; and means for anchoring said boss adjacent said chamber.
Claim 6
Dependent Claim
37 words
The leg assembly of claim 1 wherein said wedge comprises a tapered curved wedge having an inner concave surface matching the surface of said leg and an outer convex surface matching the inner surface of said chamber.
Claim 7
Dependent Claim
83 words
A leg assembly for an object comprising: a leg receiving chamber in said object; a projection extending into said chamber; a leg having a first end disposed within said chamber; a recess formed in said leg and engaging said projection; a curved wedge having a curved surface portion engaging said chamber and a plurality of spaced apart ribs attached at one end to said surface portion and engaging said leg at the opposite end; and means for fixing said wedge within said chamber.
Claim 8
Dependent Claim
83 words
A leg assembly for an object comprising: a leg receiving chamber in said object; a projection extending into said chamber; a leg having a first end disposed within said chamber; a recess formed in said leg and engaging said projection; a curved wedge having a curved surface portion engaging said chamber and a plurality of spaced apart ribs attached at one end to said surface portion and engaging said leg at the opposite end; and means for fixing said wedge within said chamber.
Claim 9
Dependent Claim
24 words
The assembly of claim 2 wherein said projection comprises a generally cylindrical post attached at one end to said first end of said chamber.
Claim 10
Dependent Claim
83 words
Components for forming a leg assembly for an object comprising, in combination: an elongated leg having a recess formed adjacent one end thereof; a leg receiving chamber in said object adapted to loosely receive said leg; a locking projection attached to said chamber adapted to engage said recess; a locking wedge adapted to fit within said chamber for securing said leg therein in locking relationship with said projection; and means for securing said wedge at least partially within said chamber adjacent said leg.
Claim 11
Dependent Claim
83 words
Components for forming a leg assembly for an object comprising, in combination: an elongated leg having a recess formed adjacent one end thereof; a leg receiving chamber in said object adapted to loosely receive said leg; a locking projection attached to said chamber adapted to engage said recess; a locking wedge adapted to fit within said chamber for securing said leg therein in locking relationship with said projection; and means for securing said wedge at least partially within said chamber adjacent said leg.
Claim 12
Dependent Claim
45 words
The components for forming a leg assembly according to claim 7 wherein said leg receiving chamber is characterized by a substantially oval cross-section having a first end having a radius of curvature matching the leg and a second end having a larger radius of curvature.
Claim 13
Dependent Claim
82 words
Components for forming a leg assembly for an object comprising, in combination: an elongated leg having a recess formed adjacent one end thereof; a leg receiving chamber in said object adapted to loosely receive said leg; a locking projection within said chamber adapted to engage said recess; a locking wedge adapted to fit within said chamber for securing said leg therein in locking relationship with said projection; a boss attached to said wedge; and means for anchoring said boss adjacent said chamber.
Claim 14
Dependent Claim
82 words
Components for forming a leg assembly for an object comprising, in combination: an elongated leg having a recess formed adjacent one end thereof; a leg receiving chamber in said object adapted to loosely receive said leg; a locking projection within said chamber adapted to engage said recess; a locking wedge adapted to fit within said chamber for securing said leg therein in locking relationship with said projection; a boss attached to said wedge; and means for anchoring said boss adjacent said chamber.
Claim 15
Dependent Claim
42 words
The components for forming a leg assembly according to claim 7 wherein said wedge comprises a tapered curved wedge having an inner concave surface matching the surface of said leg and an outer convex surface matching the inner surface of said chamber.
Claim 16
Dependent Claim
98 words
Components for forming a leg assembly for an object comprising, in combination: an elongated leg having a recess formed adjacent one end thereof; a leg receiving chamber in said object adapted to loosely receive said leg; a locking projection within said chamber adapted to engage said recess; a locking wedge comprising an outer convex curved surface portion engaging said chamber and a plurality of spaced apart ribs attached at one end to said surface portion and having concave opposite ends engaging said legs; and means for securing said wedge at least partially within said chamber adjacent said leg.
Claim 17
Dependent Claim
98 words
Components for forming a leg assembly for an object comprising, in combination: an elongated leg having a recess formed adjacent one end thereof; a leg receiving chamber in said object adapted to loosely receive said leg; a locking projection within said chamber adapted to engage said recess; a locking wedge comprising an outer convex curved surface portion engaging said chamber and a plurality of spaced apart ribs attached at one end to said surface portion and having concave opposite ends engaging said legs; and means for securing said wedge at least partially within said chamber adjacent said leg.
Claim 18
Dependent Claim
86 words
A detachable leg assembly for an object comprising: a substantially cylindrical leg having a recess adjacent a first end thereof; a generally frustoconical leg receiving chamber formed in said object having a locking projection on one wall thereof adapated to engage said recess when said leg is positioned in said chamber; and a wedge-shaped anchoring member positioned within said chamber and substantially filling the space between said leg and the wall of said chamber; and means for anchoring said holding member in place within said chamber.
Claim 19
Dependent Claim
86 words
A detachable leg assembly for an object comprising: a substantially cylindrical leg having a recess adjacent a first end thereof; a generally frustoconical leg receiving chamber formed in said object having a locking projection on one wall thereof adapated to engage said recess when said leg is positioned in said chamber; and a wedge-shaped anchoring member positioned within said chamber and substantially filling the space between said leg and the wall of said chamber; and means for anchoring said holding member in place within said chamber.
Claim 20
Dependent Claim
40 words
The leg assembly of claim 12 wherein said leg receiving chamber is characterized by a substantially oval cross-section having a first end having a radius of curvature matching the leg and a second end having a larger radius of curvature.
Claim 21
Dependent Claim
88 words
A detachable leg assembly for an object comprising: a substantially cylindrical leg having a recess adjacent a first end thereof; a generally frustoconical leg receiving chamber formed in said object having a locking projection on one wall thereof adapted to engage said recess when said leg is positioned in said chamber; a wedge-shaped anchoring member positioned within said chamber and substantially filling the space between said leg and the wall of said chamber; a boss attached to said wedge; and means for anchoring said boss adjacent said chamber.
Claim 22
Dependent Claim
88 words
A detachable leg assembly for an object comprising: a substantially cylindrical leg having a recess adjacent a first end thereof; a generally frustoconical leg receiving chamber formed in said object having a locking projection on one wall thereof adapted to engage said recess when said leg is positioned in said chamber; a wedge-shaped anchoring member positioned within said chamber and substantially filling the space between said leg and the wall of said chamber; a boss attached to said wedge; and means for anchoring said boss adjacent said chamber.
Claim 23
Dependent Claim
37 words
The leg assembly of claim 12 wherein said wedge comprises a tapered curved wedge having an inner concave surface matching the surface of said leg and an outer convex surface matching the inner surface of said chamber.
Claim 24
Dependent Claim
98 words
A detachable leg assembly for an object comprising: a substantially cylindrical leg having a recess adjacent a first end thereof; a generally frustoconical leg receiving chamber formed in said object having a locking projection on one wall thereof adapted to engage said recess when said leg is positioned in said chamber; a wedge comprising an outer convex curved surface portion engaging said chamber and a plurality of spaced apart ribs attached at one end to said surface portion and having concave opposite ends engaging said legs; and means for anchoring said holding member in place within said chamber.
Claim 25
Dependent Claim
98 words
A detachable leg assembly for an object comprising: a substantially cylindrical leg having a recess adjacent a first end thereof; a generally frustoconical leg receiving chamber formed in said object having a locking projection on one wall thereof adapted to engage said recess when said leg is positioned in said chamber; a wedge comprising an outer convex curved surface portion engaging said chamber and a plurality of spaced apart ribs attached at one end to said surface portion and having concave opposite ends engaging said legs; and means for anchoring said holding member in place within said chamber.
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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) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |