IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0017652
(2008-01-22)
|
등록번호 |
US7988405
(2011-07-18)
|
발명자
/ 주소 |
- Ellington, Stanley Charles
|
대리인 / 주소 |
Katten Muchin Rosenman LLP
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
13 |
초록
▼
A pallet jack is disclosed that comprises a left tine, center tine, and a right tine. The center tine is about 2 times the width of each of the left and right tines, though other widths of the center tine can also be implemented. Because the center tine is about twice the width of the left and right
A pallet jack is disclosed that comprises a left tine, center tine, and a right tine. The center tine is about 2 times the width of each of the left and right tines, though other widths of the center tine can also be implemented. Because the center tine is about twice the width of the left and right tines, two pallets, side-by-side, can be carried simultaneously with only three tines. According to another embodiment of the pallet jack, a portion of the center tine (a right-most portion) and the right tine can have raised areas that enable an operator of the pallet jack to lift a right pallet that sits on the raised areas higher than the left pallet. The left pallet sits on the left tine and center tine without the raised areas (at a lower height). Thus, the operator of the pallet jack can place the left pallet in a first location without disengaging the tines from the right pallet, or without lowering the right pallet all the way to the ground (or a first location surface). Alternatively, the raised areas can be located on the left tine and the left-most portion of the center tine, in which case, the operator of the pallet jack can place the right pallet in a first location without disengaging the tines from the left pallet, or without lowering the left pallet all the way to the ground (or a first location surface).
대표청구항
▼
What is claimed is: 1. A pallet jack, comprising:a left tine, a center tine, and a right tine, each having a substantially similar length and a longitudinal axis, wherein the left, center, and right tines are substantially parallel with respect to each other, and wherein the center tine has a width
What is claimed is: 1. A pallet jack, comprising:a left tine, a center tine, and a right tine, each having a substantially similar length and a longitudinal axis, wherein the left, center, and right tines are substantially parallel with respect to each other, and wherein the center tine has a width that is about two times as wide as a corresponding width of each of the left tine and right tine, such that the pallet jack is configured to lift a first pallet and a second pallet in a side-by-side configuration on the left tine, center tine, and right tine, wherein the left pallet rests upon the left tine and a left portion of the center tine, and the right pallet rests upon the right tine and a right portion of the center tine;said center tine being monolithic and, in cross-section orthogonal to its longitudinal axis, having a low portion and a high portion, which is higher than said low portion, the low portion and the high portion of the center tine being connected in cross-section orthogonal to the longitudinal axis of the center tine, said left tine, in cross-section orthogonal to its longitudinal axis having a height substantially equal to said center tine low portion, said right tine, in cross-section orthogonal to its longitudinal axis, having a height substantially equal to said center tine high portion;a lifting mechanism configured to lift the left, center, and right tines; anda pallet jack body attached to a rear-most portion of each of the left, center, and right tines.
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