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Leave-In Probe Thermometer: Stainless Probe on a Flexible Lead to a Programmable Timer (Chapman, US 6,568,848, 2003)
A meat thermometer you leave in the roast. A pointed stainless steel probe stays in the meat. A flexible lead runs out of the oven to a battery timer unit with a display, keys and a beeper. You pick the meat and how well done you want it; the unit shows the temperature and the time left, and beeps when it is done.
Result: continuous reading of the inside of the meat without opening the oven.
Source: P. A. Chapman and C.-A. Chang (Maverick Industries), US 6,568,848 (2003). The patent's main form sends the readings by radio; it also states this wired form. Unknown: the sensor, the circuit, the target temperatures and the materials. Picture: the patent drawing.
中级
Unknown
说明
1
1
Make the probe
Make the probe
Make the probe of a rigid material such as stainless steel. It has a pointed end that goes into the meat, a straight section from the point, then a curved section to the other end. The temperature sensor sits inside. Not given: the type of sensor, sizes.
此步骤所需材料：
带尖头塞的温度计管1 stainless steel
温度传感器1 个所需工具：
未知尺寸
电烙铁2
2
Fit the flexible lead and plug
Fit the flexible lead and plug
Join a flexible lead to the curved end of the probe, so the probe can lie at any angle to the unit. Put a plug with a male end on the other end of the lead. Not given: the lead material, the plug type, the length.
此步骤所需材料：
多芯电缆1 flexible lead
未知连接器1 plug
焊锡丝1 as needed所需工具：
电烙铁未知尺寸3
3
Build the timer unit
Build the timer unit
In a hand-held case, fit a microprocessor that runs the cooking programs, a liquid crystal display, a beeper and batteries. Fit nine keys: clock or timer, probe A or B, meat type, doneness, two to set and change the final temperature, hours, minutes, and start/stop. Add a jack for each probe, a stand to set it upright and a clip for a belt or pocket. Not given: the circuit, the program, the case material.
此步骤所需材料：
印制电路板1 个
集成电路1 microprocessor
段码液晶屏1 个
按钮9 keys
压电蜂鸣器1 个未知连接器2 probe jacks
电池1 as needed
未知材料1 case, stand, clip焊锡丝1 as needed所需工具：
电烙铁
螺丝刀套装4
4
Roast with it
Roast with it
Plug the probe into the timer unit. Pick the meat (beef, veal, lamb, pork, chicken, turkey) and the doneness (rare, medium rare, medium, well-done); the patent cooks to USDA guidelines. Push the probe into the meat, put it in the oven and lead the cable out to the unit, then press start. The display shows the meat, the doneness, the temperature (°F or °C) and the time left, and the beeper sounds at the right moments. A second probe watches a second piece. Not given: the temperature for each doneness.
所需工具：
烤箱材料
12- 1 stainless steel占位符
- 占位符
- 1 flexible lead占位符
- 2 probe jacks占位符
- 2 as needed占位符
- 1 个占位符
- 1 microprocessor占位符
- 1 个占位符
- 占位符
- 1 个占位符
- 1 as needed占位符
- 1 case, stand, clip占位符
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