검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | B62B-019/00 |
미국특허분류(USC) | 280/008 ; 280/653 ; 280/047.371 |
출원번호 | US-0861944 (1997-05-29) |
발명자 / 주소 | |
대리인 / 주소 |
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인용정보 | 피인용 횟수 : 22 인용 특허 : 27 |
A multipurpose two-wheeled cart whose wheels are removable from the body of the cart to leave a generally planar flat bottom, so that the cart can be used as a sled. Side extensions may be mounted to hold bulky loads. Removable handles are provided at both of the sloping ends of the body and are adjustable to keep grips at the same height from the ground when the wheels are removed. Either or both of the handles may be mounted and used, depending on whether terrain and load make it desirable for one person or two people to move the cart and its load. The...
[ What is claimed is:] [10.] A convertible portable cart, comprising:(a) a load-bearing body having a pair of upwardly and outwardly sloping ends, a pair of opposite sides, and a generally planar bottom free of downward projections extending otherwise than primarily longitudinally with respect to said body and said body having a plurality of runners on said bottom to engage a surface to support said body;(b) a plurality of handle receptacles associated with said body;(c) at least one handle, said handle having a pair of generally parallel side member por...