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) | F24H-003/08 |
미국특허분류(USC) | 126/112 ; 126/116B ; 126/110R ; 126/116R |
출원번호 | US-0008757 (1987-01-30) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 3 |
This invention provides improved gas-fired heater means for supplying heat to a space, such as a room, house, building, vehicle, or the like. Basically, the improved gas-fired space heater means comprises: a first duct-like member having opposite front and rear ends and provided adjacent its front end with means for receiving, mixing and igniting a mixture of pressurized fuel gas and a combustion supporting gas within its interior that is discharged through exhaust conduit means from its rear end to an exhaust outlet located adjacent to its front end; a ...
Improved gas-fired space heater means, comprising in combination: (a) a first duct-like member being provided with an interior and an exterior, said member having opposite front and rear ends, said front end being provided with a combustion supporting gas plenum, said plenum having an inlet and an outlet, said outlet being in flow communication with means for receiving, mixing and igniting a mixture of pressurized fuel gas and a combustion supporting gas within said interior, said rear end having an exhaust conduit means in fluid communication with the i...