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) | A44B-011/26 |
미국특허분류(USC) | 24/616 ; 24/589 |
출원번호 | US-0912296 (1992-07-13) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 28 인용 특허 : 0 |
A safety clasp for jewelry including a receptacle having a cavity and a pair of opposed shoulders extending into the cavity. A leaf spring, which is insertable into the receptacle, includes a pair of legs in angular relation with each other. A first or primary clasp mechanism is provided to engage the leaf spring with the receptacle wherein a first leg terminates in a free end which will engage the opposed shoulders. An additional clasp mechanism is provided in the event of failure or unfastening of the primary clasp. A pair of inwardly extending recesse...
A safety clasp for jewelry which comprises: an elongated receptacle having a cavity extending from an opening into said receptacle and a pair of opposed shoulders near said opening; a leaf spring having a first and second leg, said legs joined at one end and extending therefrom in angular relation to each other, said leaf spring receivable in said cavity when said legs are squeezed together; primary means to engage said leaf spring with said receptacle wherein said first leg terminates in a free end having a pair of lateral edges which will engage said o...