Browse Prior Art Database

Plastic Motor and Pump

IP.com Disclosure Number: IPCOM000094208D
Original Publication Date: 1966-Jul-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Cole, JN: AUTHOR

Abstract

The drawing shows a constant-speed, all-plastic, nonmagnetic, air driven motor 10 and pump 11. Pump 11 and motor 10 are made of identical plastic parts and molded of either TEFLON* or nylon. Shown at the upper left is the interior of the air motor comprising outer casing 10a with compressed air input channel 18 and exhaust opening 19. Fastened to plastic drive shaft 13 is plastic rotor 12 formed with air driven bucket teeth to drive motor 10 and a connected, similar plastic pump 11 rotor in a clockwise direction. *Trademark of E. I. du Pont de Nemours and Co.

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Plastic Motor and Pump

The drawing shows a constant-speed, all-plastic, nonmagnetic, air driven motor 10 and pump 11. Pump 11 and motor 10 are made of identical plastic parts and molded of either TEFLON* or nylon. Shown at the upper left is the interior of the air motor comprising outer casing 10a with compressed air input channel 18 and exhaust opening 19. Fastened to plastic drive shaft 13 is plastic rotor 12 formed with air driven bucket teeth to drive motor 10 and a connected, similar plastic pump 11 rotor in a clockwise direction. *Trademark of E. I. du Pont de Nemours and Co.

The device includes a speed controller shown at the upper right for sensing the speed of motor 10 and operating a regulating air blocking plastic vane 17. This extends differentially into channel 18 to retard excessive motor speeds. The output pressure of air or fluid from pump 11 acts through pipe 14 to operate bellows 16 in control housing 15 to depress the vane 17 into channel 18.

If motor 10 tends to slow down, the fluid pressure from pump 11 decreases. This causes bellows 16 to contract and vane 17 is pulled further into housing 15. Thus more air is allowed to flow into motor 10 which causes it to speed up to the proper speed. If motor 10 tends to go too fast, the bellows 16 action is reversed and motor 10 is caused to slow down.

Utility for motor 10 and pump 11 is shown in a magnetic device environment in the lower drawing. They are mounted near the chemical deposition tank 22 to...