US 9,872,557 B2Granted

Delivery tip for flowable materials

AssigneeCAO Group, Inc.

InventorSteven D. Jensen

Life of this patent

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Abstract

A delivery tip for flowable materials with bristles or fibers extending therefrom. The tip is a cannula with a tapered outlet and features a bristle or fiber bundle with a binding restriction member that interfaces with the cannula at some point within the cannula but has a smaller cross-sectional area for flow passage than the cannula at that point. The bristle or fiber bundle extends out of the tapered outlet. The delivery tip may connect to a material reservoir with flowable material. When positive pressure is applied to the reservoir, material then will flow through the cannula, around the restriction member, into the bristles or fibers and out the outlet for distribution to a desired surface.

Claims3

Dependent claims

A delivery tip for flowable materials, comprising:

a cannula having a first end with a first opening, and a second end with an outlet, the cannula having a graded portion with a cross-sectional dimension that continuously decreases moving towards the outlet;
a restriction member having a cross-sectional area, the restriction member positioned completely within the cannula;
a bundle of fibers having a first end and a second end, the first end of the bundle being attached to the restriction member and the second end extending through the outlet;
and
an engagement point within the cannula that defines a set position of the restriction member within the cannula, where the restriction member is engaged with the cannula via at least one of an adhesive, and a weld, such that the second end of the bundle of fibers extending through the outlet has a fixed length;
and
wherein the restriction member is a flat disk;
and
wherein the restriction member has a circular shape and further comprises passages cut out of an interior portion of the restriction member.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/686,366Filed 12 Jan 2010 · continuation in part
Priority: 6 Dec 2006
Published: US 2010/0111591 A16 May 2010
Granted: 23 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

A46B 11/0041
Pressurised at moment of use manually or by powered means: flexible or deformable reservoirs, e.g. resilient bulbs, compressible tubes
A46B 3/00
Brushes characterised by the way in which the bristles are fixed or
A46B 7/00
Bristle carriers arranged in the brush body
A46B
Brushes

Family

Application11/567,367Parent of this continuation-in-part · filed 6 Dec 2006
Application11/743,115Parent of this continuation-in-part · filed 1 May 2007
US 2010/0111591 A1Pre-grant publication · published 6 May 2010
US 7,645,086 B2Parent of this continuation-in-part
US 7,476,049 B2Parent of this continuation-in-part
US 2008/0138146 A1Published application
US 2008/0140030 A1Published application
US 9,872,557 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

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