IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0395010
(2003-03-21)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Patterson, Thuente, Skaar &
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인용정보 |
피인용 횟수 :
12 인용 특허 :
7 |
초록
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A dumping cart having an article retaining bed, a chassis, a front set of wheels, a rear set of wheels, and a mechanism for pulling. The article retaining bed has a front end, a rear end, a pair of sides that each extend between the front end and the rear end. The front set of wheels is operably att
A dumping cart having an article retaining bed, a chassis, a front set of wheels, a rear set of wheels, and a mechanism for pulling. The article retaining bed has a front end, a rear end, a pair of sides that each extend between the front end and the rear end. The front set of wheels is operably attached to the chassis. The rear set of wheels is operably attached to the article retaining bed proximal to the rear end. The mechanism for pulling the dumping cart is operably attached to at least one of the article retaining bed and the chassis. The chassis is pivotally attached to the article retaining bed intermediate the front set of wheels and the rear set of wheels.
대표청구항
▼
1. A dumping cart comprising:an article retaining bed comprising a front end, a rear end, and a pair of sides that each extend between the front end and the rear end; a chassis; a front set of wheels operably attached to the chassis; a rear set of wheels operably attached to the article retaining be
1. A dumping cart comprising:an article retaining bed comprising a front end, a rear end, and a pair of sides that each extend between the front end and the rear end; a chassis; a front set of wheels operably attached to the chassis; a rear set of wheels operably attached to the article retaining bed proximal to the rear end; and a means for pulling the dumping cart operably attached to at least one of the article retaining bed and the chassis, wherein the chassis is pivotally attached to the article retaining bed intermediate the front set of wheels and the rear set of wheels. 2. The dumping cart of claim 1, further comprising:a front end wall operably mounted with respect to the front end of the article retaining bed; a rear end wall operably mounted with respect to the rear end of the article retaining bed; and a pair of side walls operably mounted with respect to the sides of the article retaining bed. 3. The dumping cart of claim 2, wherein the front end wall, the rear end wall, and the side walls are pivotally attached to the article retaining bed.4. The dumping cart of claim 2, wherein the rear end wall is pivotally connected to one of the side walls.5. The dumping cart of claim 4, and further comprising a locking means for retaining the rear end wall in a stationary position with respect to the one side wall to which the rear end wall is attached.6. The dumping cart of claim 1, and further comprising a locking means for maintaining the article retaining bed in a lowered position with respect to the chassis.7. The dumping cart of claim 6, and further comprising a handle attached to the front end of the article retaining bed.8. The dumping cart of claim 7, wherein the handle and the locking means are operably connected to each other.9. The dumping cart of claim 1, wherein the front set of wheels is pivotally attached to the chassis with a turning mechanism.10. The dumping cart of claim 9, wherein the turning mechanism is operably attached to the pulling means.11. A dumping cart comprising:an article retaining bed comprising a front end, a rear end, and a pair of sides that each extend between the front end and the rear end; a chassis; a front set of wheels operably attached to the chassis; a rear set of wheels operably attached to the article retaining bed proximal to the rear end with a front brace and a rear brace; and a means for pulling the dumping cart operably attached to at least one of the article retaining bed and the chassis, wherein the chassis is pivotally attached to the article retaining bed intermediate the front set of wheels and the rear set of wheels. 12. The dumping cart of claim 11, and further comprising:a front end wall operably mounted with respect to the front end of the article retaining bed; a rear end wall operably mounted with respect to the rear end of the article retaining bed; and a pair of side walls operably mounted with respect to the sides of the article retaining bed. 13. The dumping cart of claim 12, wherein the front end wall, the rear end wall, and the side walls are pivotally attached to the article retaining bed.14. The dumping cart of claim 12, wherein the rear end wall is pivotally attached to one of the side walls.15. The dumping cart of claim 14, and further comprising a locking means for retaining the rear end wall in a stationary position with respect to the one side wall to which the rear end wall is attached.16. The dumping cart of claim 11, and further comprising a locking means for maintaining the article retaining bed in a lowered position with respect to the chassis.17. The dumping cart of claim 16, and further comprising a handle attached to the front end of the article retaining bed.18. The dumping cart of claim 17, wherein the handle and the locking means are operably connected to each other.19. The dumping cart of claim 11, and wherein the front set of wheels is pivotally attached to the chassis with a turning mechanism.20. The dumping cart of claim 19, wherein the turning mechanism is operably attached to the pulling means.21. A method for operating a dumping cart comprising:providing a dumping cart having an article retaining bed, a chassis, a front set of wheels, a rear set of wheels, and a means for pulling the dumping cart, wherein the article retaining bed comprises a front end, a rear end, and a pair of sides that each extend between the front end and the rear end, wherein the chassis is pivotally attached to the article retaining bed intermediate the front set of wheels and the rear set of wheels, wherein the front set of wheels is operably attached to the chassis, wherein the rear set of wheels is operably attached proximal to the rear end of the article retaining bed, and wherein the pulling means is operably attached to at least one of the article retaining bed and the chassis; rotating the front set of wheels about a first axis and rotating the rear set of wheels about a second axis to move the dumping cart to a desired location; and pivoting the article retaining bed with respect to the chassis about a third axis from a lowered position to a raised position to cause the third axis to move from a position between the first axis and the second axis to a position outside the first axis and the second axis. 22. The method of claim 21, and further comprising:operably attaching a front end wall to a front end of the article retaining bed; operably attaching a rear end wall to the rear end of the article retaining bed; and operably attaching a pair of side walls to sides of the article retaining bed so that the side walls extend between the front end wall and the rear end wall. 23. The method of claim 22, and further comprising pivoting the front end wall, the rear end wall, and the side walls from an upwardly extending orientation to a downwardly extending orientation.24. The method of claim 21, and further comprising pivoting the front set of wheels with respect to the article retaining bed.25. The method of claim 21, and further comprising locking the chassis in the lowered position.26. The method of claim 21, and further comprising lifting the front end of the article retaining bed with a handle to pivot the article retaining bed from the lowered position to the raised position.
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