1. Pratham Presenter: Nick Martin Team Leader: Matt Ryan Chief Engineer: Gabe Letona Fabrication: Reed Langton CADCAM: Fraterno Vila Electronics/Control Engineer: Nick Martin

2. SENSORS Height Adjustment routine Height Adjustment routine Lid Gripping routine Lid Gripping routine Body Gripping/Twisting routine Body Gripping/Twisting routine Operating Routine of Automatic Lid Opener:

3. SENSORS Operating Routine: I. HEIGHT ADJUSTING

4. SENSORS Operating Routine (cont’d): II. LID GRIPPING

5. SENSORS Operating Routine (cont’d): III. BODY GRIPPING/TWISTING

6. SENSORS HALL EFFECT SENSOR INFRARED LED RECEIVER INFRARED LED EMITTER

7. Magnetic Sensor Small permanent magnets attached to outer rim of base plate Small permanent magnets attached to outer rim of base plate Hall Effect Sensor detects nearby magnets as they pass, recording the angular postion of the plate Hall Effect Sensor detects nearby magnets as they pass, recording the angular postion of the plate Benefit – Emitter does not require wiring, which would easily get twisted on plate Benefit – Emitter does not require wiring, which would easily get twisted on plate

8. Magnetic Sensor

9. LED Sensor Part of the Height Adjustment assembly Part of the Height Adjustment assembly For jars with lid diameters of less than 2.5” For jars with lid diameters of less than 2.5” - Lid will not make contact with push button - When light beam between emitter and sensor is broken, Height Adjustment routine will stop and Lid Gripping routine will begin

10. Push Button Sensors Detect physical contact Detect physical contact Multiple buttons used in Height Adjustment and Lid Gripping routines Multiple buttons used in Height Adjustment and Lid Gripping routines Gripping components move freely in slots Gripping components move freely in slots Contact with jar lid or body applies force to grips and compresses springs until contact is made with push buttons Contact with jar lid or body applies force to grips and compresses springs until contact is made with push buttons

11. Push Button Sensors