Vacuum evacuation apparatus

Details Vacuum evacuation apparatus Vacuum evacuation apparatus

1977-08-19

1980-01-08

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Evacuation apparatus

128276, 141392, B65B 304

Patent

active

041823850

ABSTRACT:
A plastic evacuation tube for use with a standard dental and/or surgical vacuum system is disclosed. The tube is formed with an enlarged non-compressible bulb-shaped portion (bulb) intermediate its length. The operational end section of the tube is tapered from the bulb to a smaller diameter flexible tip end and may be provided with spaced apart markings to designate decreasing inner diameters from the bulb to the tip end.

REFERENCES:
patent: 2173637 (1939-09-01), Riedner
patent: 3094124 (1963-06-01), Birtwell
patent: 3823750 (1974-07-01), Owen

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