US4129918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable sleeve for artists paint brushes
Assignee: Individual
•
Filing: 1977-08-29
•
Granted: 1978-12-19
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Expires: 1997-08-29
Abstract
Abstract An adjustable sleeve for artists' paint brush adapted to adjust the effective length of the hair or bristles. The adjustable sleeve is tubular at its tip to contain the hair or bristles and which is split above the tip to provide a spring biased grip upon the brush ferrule. The adjustable sleeve is tapered in substantial conformity with the taper of the ferrule and it is longitudinally adjustable relative to the ferrule to vary the effective length of the hair or bristles.
Inventors
- 👤 Robert Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:38
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/08; A46B9/10; A46B2200/00; A46B2200/20; A46B2200/202
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
226 words
An adjustable sleeve for adjusting the effective length of the hairs or bristles of artists' paint brushes having a tapered ferrule securing the hairs or bristles to the handle, said adjustable sleeve comprising: (a) a conical structure having a circumferentially continuous tubular tip and a longitudinally split body extending upwardly from said tip, coaxially therewith, (b) said longitudinally split body defining a relatively narrow slit at its upper portion and a relatively wide cutout at its lower portion, (c) said narrow slit merging into and being continuous with said wide cutout, (d) said tubular tip having a circular cross section, (e) said lower portion of the body having a C-shaped cross-section, and (f) said upper portion of the body having a C-shaped cross-section, (g) said adjustable sleeve being conically tapered from a relatively small diameter at its tubular tip to a relatively large diameter at its longitudinally slit upper body portion to conform to the taper of a paint brush ferrule, (h) the upper body portion of said adjustable sleeve comprising a conical C-clip to grip the paint brush ferrule at selected positions along its length, (i) the length of the adjustable sleeve being sufficient to enable it to fully enclose the paint brush hairs or bristles when the upper body portion of the sleeve is clipped to the lower end of the paint brush ferrule.
Claim 2
Dependent Claim
226 words
An adjustable sleeve for adjusting the effective length of the hairs or bristles of artists' paint brushes having a tapered ferrule securing the hairs or bristles to the handle, said adjustable sleeve comprising: (a) a conical structure having a circumferentially continuous tubular tip and a longitudinally split body extending upwardly from said tip, coaxially therewith, (b) said longitudinally split body defining a relatively narrow slit at its upper portion and a relatively wide cutout at its lower portion, (c) said narrow slit merging into and being continuous with said wide cutout, (d) said tubular tip having a circular cross section, (e) said lower portion of the body having a C-shaped cross-section, and (f) said upper portion of the body having a C-shaped cross-section, (g) said adjustable sleeve being conically tapered from a relatively small diameter at its tubular tip to a relatively large diameter at its longitudinally slit upper body portion to conform to the taper of a paint brush ferrule, (h) the upper body portion of said adjustable sleeve comprising a conical C-clip to grip the paint brush ferrule at selected positions along its length, (i) the length of the adjustable sleeve being sufficient to enable it to fully enclose the paint brush hairs or bristles when the upper body portion of the sleeve is clipped to the lower end of the paint brush ferrule.
Claim 3
Dependent Claim
30 words
An adjustable sleeve in accordance with claim 1, said sleeve being made of spring material to enable its upper body portion to grip the paint brush ferrule under spring tension.
Claim 4
Dependent Claim
38 words
An adjustable sleeve in accordance with claim 1, wherein a flared lip is provided on the tubular tip at the wide cutout in the lower body portion to guide the brush hairs or bristles into said tubular tip.
Claim 5
Dependent Claim
38 words
An adjustable sleeve in accordance with claim 1, wherein the smallest diameter of said upper body portion of the sleeve falling short of the smallest diameter of the paint brush ferrule in the area of engagement between them.
Claim 6
Dependent Claim
225 words
An adjustable sleeve for adjusting the effective length of the hairs or bristles of artists' paint brushes having a tapered ferrule securing the hairs or bristles to the handle, said adjustable sleeve comprising: (a) a conical structure having a circumferentially continuous tubular tip and a longitudinally split body extending upwardly from said tip, coaxially therewith, (b) said longitudinally split body defining a relatively narrow slit at its upper portion and a relatively wide cutout at its lower portion, (c) said narrow slit merging into and being continuous with said wide cutout, (d) said tubular tip having a circular cross-section, (e) said lower portion of the body having a U-shaped cross-section, and (f) said upper portion of the body having a C-shaped cross-section, (g) said adjustable sleeve being conically tapered from a relatively small diameter at its tubular tip to a relatively large diameter at its longitudinally slit upper body portion to conform to the taper of a paint brush ferrule, (h) the upper body portion of said adjustable sleeve comprising a conical C-clip to grip the paint brush ferrule at selected positions along its length, (i) the length of the adjustable sleeve being sufficient to enable it to fully enclose the paint brush hairs or bristles when the upper body portion of the sleeve is clipped to the lower end of the paint brush ferrule.
Claim 7
Dependent Claim
225 words
An adjustable sleeve for adjusting the effective length of the hairs or bristles of artists' paint brushes having a tapered ferrule securing the hairs or bristles to the handle, said adjustable sleeve comprising: (a) a conical structure having a circumferentially continuous tubular tip and a longitudinally split body extending upwardly from said tip, coaxially therewith, (b) said longitudinally split body defining a relatively narrow slit at its upper portion and a relatively wide cutout at its lower portion, (c) said narrow slit merging into and being continuous with said wide cutout, (d) said tubular tip having a circular cross-section, (e) said lower portion of the body having a U-shaped cross-section, and (f) said upper portion of the body having a C-shaped cross-section, (g) said adjustable sleeve being conically tapered from a relatively small diameter at its tubular tip to a relatively large diameter at its longitudinally slit upper body portion to conform to the taper of a paint brush ferrule, (h) the upper body portion of said adjustable sleeve comprising a conical C-clip to grip the paint brush ferrule at selected positions along its length, (i) the length of the adjustable sleeve being sufficient to enable it to fully enclose the paint brush hairs or bristles when the upper body portion of the sleeve is clipped to the lower end of the paint brush ferrule.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |