|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||116/70 ; 116/137R|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 12 인용 특허 : 0|
A knob for a cooking vessel is a whistle which gives an audible signal that cooking temperature has been reached, and has a valve slide for shutting off the whistle. Supporting inside and outside knob parts incorporate halves of a resonance chamber, which makes the knob extremely simple to mold, assemble, clean, and disassemble. The valve slide rests in guides which make it impossible to assemble incorrectly, and overlaid by a knob cover.
In a knob for a vessel in which substances containing water are to be heated, said knob containing passages shaped to cause an audible whistle upon the passage of steam through said passages, and having a valve controlling them movement of steam through said passages, the novelty comprising; a resonance chamber which is a part of said passages, said knob comprising a base part and a separable part each containing portions of the wall of the resonance chamber whereby separation of the parts permits cleaning of the resonance chamber, the base portion havin...