|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||116/67R ; 99/344 ; 126/388|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 11 인용 특허 : 4|
A cooking vessel is provided with a whistle knob which has an internal passage for carrying steam from a hole in the cooking vessel to a rotary whistle chamber molded in the knob. The whistle chamber is displaced from and eccentric to the knob axis. The lower surface of the knob has a cavity which surrounds the knob axis, providing a steam passage inlet which is in communication with the hole in the cooking vessel regardless of the angular position of the knob relative to its axis. From the inlet cavity, steam passes through a vertically extending passag...
A whistling knob for a cooking vessel, said knob having a body with a surface for engaging a wall of a cooking vessel, a whistle chamber in said knob, said whistle chamber having an axis, passage means formed in said knob and extending from said surface and has a convergent portion with a planar bottom to said whistle chamber, said passage means being oriented to introduce steam into said whistle chamber at an angle from an inlet normal to said planar bottom and in direct communication with said passage, which causes an audible whistle and rotary movemen...