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" |
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | A47K-001/04 |
미국특허분류(USC) | 248/129 ; 5/5031 ; 248/278 ; 280/3041 |
출원번호 | US-0221884 (1994-04-01) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 55 인용 특허 : 0 |
An I. V. stand is provided for (1) use by itself; (2) releasable use with a wheelchair providing for movement of its supporting wheels to provide only swiveling wheels; and (3) use with a gurney providing an adjustable arm attachment. The I. V. pole has an indicator for showing the position of a snubber, or attachment, mechanism used to contact the wheelchair. The I. V. stand has two castered forward wheels and two non-pivoted rear wheels with a castered fifth wheel located between the rear wheels for lifting the rear wheels off a floor when all castered...
An I. V. stand having an upstanding pole, a base, holding means on the pole for supporting medical objects, said base having five wheels, two of said wheels mounted on the front of said base for supporting said stand, two of said wheels mounted on the rear of said base for supporting said stand, said wheels mounted on the rear of said base being stationary, a fifth pivoted wheel having caster mounted on the rear of said base between said two stationary wheels, an extending and retracting mechanism for moving said fifth pivoted wheel downwardly to an exte...