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US 8,998,610 B2Granted
Dispensing device for a dental substance
Assignee3M Innovative Properties Company
InventorsHelmut Pauser, Manfred Harre, Andreas Maurer
Life of this patent
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Abstract
A dispensing device for a dental substance which comprises a body formed in a single piece. The body connects a first passageway and a second passageway which extend along different paths. The body further comprises a nozzle with a free dispensing end. The second passageway extends into the nozzle and tapers toward the dispensing end. The invention helps to reduce manufacturing costs, and helps facilitating handling of the device.
Claims12
A dispensing device for a dental substance, comprising:
- a body formed in a single piece connecting a first passageway and a second passageway, the first passageway extending along a first path and having an opening at a rear end of the device, and the second passageway extending along a second path, wherein the second passageway forms a widened cross-sectional area, the body comprising a nozzle having a dispensing end, wherein the second passageway extends into the nozzle, tapers toward the dispensing end and opens at the dispensing end and wherein the second passageway has a second opening opposite the dispensing end;
- and
- a cover layer which is connected to the body, wherein the second opening of the second passageway opposite the dispensing end is closed by the cover layer so that the second passageway and the first passageway form an overall passageway with only two openings, the opening of the first passageway and the dispensing end.
Dependencies are inferred from the claim text.