Patent US4632461A successfully refreshed from Google Patents.
US4632461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dump cart
Assignee: Individual
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Filing: 1985-09-13
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Granted: 1986-12-30
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Expires: 2005-09-13
Abstract
Abstract A wheeled dump cart is described which may be dumped from the user's normal position behind the handle. The cart includes a box member pivotably connected to the frame. A cam member may be pivoted from a normal raised position to a ground-engaging position. The cam member engages the box member and causes it to pivot forwardly relative to the frame so as to dump the contents of the cart.
Inventors
- 👤 Ralph A. Randolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:43
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/14; B62B1/147; B62B1/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
156 words
A wheeled dump cart comprising: (a) a U-shaped frame member; (b) two wheels supporting said frame, wherein one said wheel is rotatably mounted on each side of said frame; (c) a box member carried by said frame and being pivotably connected thereto; said box member including a detent on the outer edge thereof; (d) a handle member connected to said frame; (e) a pie-shaped cam member having an inner end and a curved outer edge, wherein said cam member is pivotably connected to said frame and is adapted to pivot from a normally raised position downwardly to a ground-engaging position; (f) actuating means operable from said handle member for causing said cam member to pivot downwardly; (g) engagement means comprising a finger, carried by said cam member, which is adapted to engage said detent on said box member and cause said box member to pivot forwardly relative to said frame as said cam member pivots downwardly.
Claim 2
Dependent Claim
156 words
A wheeled dump cart comprising: (a) a U-shaped frame member; (b) two wheels supporting said frame, wherein one said wheel is rotatably mounted on each side of said frame; (c) a box member carried by said frame and being pivotably connected thereto; said box member including a detent on the outer edge thereof; (d) a handle member connected to said frame; (e) a pie-shaped cam member having an inner end and a curved outer edge, wherein said cam member is pivotably connected to said frame and is adapted to pivot from a normally raised position downwardly to a ground-engaging position; (f) actuating means operable from said handle member for causing said cam member to pivot downwardly; (g) engagement means comprising a finger, carried by said cam member, which is adapted to engage said detent on said box member and cause said box member to pivot forwardly relative to said frame as said cam member pivots downwardly.
Claim 3
Dependent Claim
43 words
A wheeled dump cart in accordance with claim 1, wherein said box member is pivotably connected to said frame at a point forwardly of said wheels, wherein said inner end of said cam member is pivotably connected to said frame at said point.
Claim 4
Dependent Claim
48 words
A wheeled dump cart in accordance with claim 2, wherein said frame member further includes a shaft extending transversely from one side of said frame to the other side thereof, wherein said box member and said inner end of said cam member are pivotably connected to said shaft.
Claim 5
Dependent Claim
19 words
A wheeled dump cart in accordance with claim 3, wherein, said outer edge of said cam member includes teeth.
Claim 6
Dependent Claim
53 words
A wheeled dump cart in accordance with claim 3, wherein said actuating means comprises a lever and a cable, wherein said lever is pivotably carried by said handle, and wherein one end of said cable is connected to said cam member and the opposite end of said cable is connected to said lever.
Claim 7
Dependent Claim
94 words
A wheeled dump cart in accordance with claim 3, wherein said actuating means comprises a lever and a linkage comprising first and second rod members and an arm hinged to said frame, wherein said lever is pivotably carried by said handle, wherein one end of said first rod member is connected to said cam member and the opposite end of said first rod is carried by said arm, and wherein one end of said second rod is connected to said arm and the opposite end of said second rod is connected to said lever.
Claim 8
Dependent Claim
24 words
A wheeled dump cart in accordance with claim 3, further including spring means adapted to bias said cam member to a normally raised position.
References Cited (Backward Citations)
US396982A
Cited
US952670A
Cited
US1549471A
Cited
US1804403A
Cited
US2103866A
Cited
US2226492A
Cited
US2358864A
Cited
US2533549A
Cited
GB806328A
Cited
US3021625A
Cited
US3189387A
Cited
US4062591A
Cited
US4023693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |