Bristle filled sleeve and method of filling and using same
AssigneeL.A. Brush Manufacturing Corp.
InventorsAnthony C. Boland, George R. Maxwell
Life of this patent
Estimating the term…
Abstract
A cylindrical brush is formed to have multiple interfitting and interconnected sections which may consist of synthetic resin; holes are controllably and automatically drilled in the sections in selected patterns so that bristles may be filled into certain holes to be retained by staples; other holes may be controllably drilled into the sections and shaped to supply fluid radially outwardly for cleaning bristles or for cleaning work, or drying or waxing same; holes may be formed at telescoping end extents of the sections; bristles may be anchored by staples with legs deflected by a mandrel or shaft; and staples may act to lock telescoping sections of a sleeve or core, assisted by bonding of the plastic sections.
Claims12
In a brush filling process employing a first core sleeve consisting of synthetic resin defining a bore, bristles, and staples, the sleeve having an outer surface and an axis, the steps that include
- (a) forming holes in the core sleeve to extend inwardly from the outer surface of the sleeve, and in a preselected pattern spaced lengthwise of the core and about the core sleeve axis,
- (b) filling said bristles into said holes to be retained at the bottoms of said holes, and to project outwardly from said holes, and
- (c) driving said staples into the core sleeve inwardly of the bottoms of the holes, thereby retaining the bristles to the hole bottoms, the staples having legs with end portions,
- (d) and wherein the core sleeve comprises multiple sleeve sections, and including telescopically interfitting said sections, thereby forming the core sleeve to selected length,
- (e) and including deflecting the end portions of the staple legs to extend generally tangentially of the sleeve bore, thereby anchoring the staples to the core sleeve, said process also including employing three of the core sleeves and longitudinally axially spaced rotary heads, and the process including the further steps:
- (i) releasably coupling said three core sleeves to two of the heads, with the core sleeves spaced about a working axis defined by said heads,
- (ii) rotating at least one of the heads about said working axis, thereby rotating the cores between index positions,
- (iii) carrying out said hole forming step at one of said positions,
- (iv) subsequently carrying out said bristles filling step, said staple driving step and said staple end deflecting step at a second of said positions,
- (v) further including trimming the filled bristles at a third of said positions
- (vi) simultaneously rotating the cores at said first and second positions relative to the heads whereby said holes are formed at cicularly spaced locations, and said bristles are filled into the holes,
- (vii) and independently transmitting drive through one of said heads to the core at said third position thereby effecting rapid rotation of said core at said third position, while said rotation of the cores between index positions is stopped.
Dependencies are inferred from the claim text.