Bernoulli type, non-contact air-activated lifting and...

Details Bernoulli type, non-contact air-activated lifting and... Bernoulli type, non-contact air-activated lifting and...

2008-07-15

2008-07-15

Olson, Lars A (Department: 3617)

Railways

Track layers

Tamper

C104S012000

Reexamination Certificate

active

07398735

ABSTRACT:
A non-contact, air-activated lifting and tamping device which incorporates a means of producing a Bernouilli airflow at the device nozzle, creating an adjacent low air pressure region for inducing lift; and which includes provision for high velocity air jets for tamping operation. The device is compact, never clogs or ices and is easily adjustable for a wide range of applications.

REFERENCES:
patent: 3992905 (1976-11-01), Oberley et al.
patent: 3997278 (1976-12-01), Riedl
patent: 4476786 (1984-10-01), Theurer
patent: 5768988 (1998-06-01), Meloni
patent: 5987857 (1999-11-01), Haddow et al.
patent: 6389979 (2002-05-01), Theurer et al.

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