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) | B32B-035/00 |
미국특허분류(USC) | 264/36 ; 156/94 ; 264/320 ; 264/322 |
출원번호 | US-0462457 (1974-04-19) |
발명자 / 주소 | |
출원인 / 주소 | |
인용정보 | 피인용 횟수 : 76 인용 특허 : 0 |
There is disclosed a method of repairing leaky permeability separatory devices, said devices comprising a membrane in the form of a multiplicity of hollow fibers having end portions potted in one or more resinous tubesheet bodies and terminating in an accessible surface of said tubesheet. According to the present invention, each surface opening communicating with a given leak in a tubesheet or fiber is selectively plugged by applying heat and pressure to the tubesheet and fiber material in the immediate vicinity of each such opening. The openings are fir...
A process for remedying leaks in a tubesheet/hollow fiber assembly comprising a plurality of hollow fiber lengths having end portions potted in and extending through a solid body of fusible resin and opening upon an accessible surface of said body, said process comprising 1. disposing said assembly within an opening in a casing, said casing being adapted for connection to a fluid pressure source, in such manner that the accessible tubesheet surface is exposed, 2. effecting a seal between the periphery of said tubesheet and the portion of said casing adja...