Patent US3971094A successfully refreshed from Google Patents.
US3971094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush handles
Assignee: Individual
•
Filing: 1974-12-12
•
Granted: 1976-07-27
•
Expires: 1994-12-12
Abstract
Abstract A paint roller or ceiling brush handle which is specially adapted to fit an individual's grip and accordingly has two curved circumferential surfaces forming two of the opposite gripping surfaces, such surfaces being joined by opposite circumferentially arched surfaces, convexly shaped. Brush handle is proportioned to be of a length substantially equal to an average adult hand width and the handle is proportioned to fit anatomically the grip of the holder.
Inventors
- 👤 Johannes Solf
- 👤 Wolfgang Feine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:42
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
195 words
A brush handle which is proportioned to be of a length not substantially greater than an average adult hand width, said handle having two opposed convexly shaped sides which extend between opposite handle ends and arched in opposite directions to provide a maximum width approximately midway of the handle, a second pair of convex sides arched in opposite directions and proportioned to provide a maximum dimension approximately midway of the handle in length, such pair of opposed sides being joined by edges running in the direction of the axis of the handle length and adapted to form an eight cornered cross-sectional shape providing a ball-like configuration whereby substantially uniform pressure distribution is effected between the grip of the user and the confronting surfaces of the handle, recess means forming a contact surface for the thumb at that end of the handle forming a tool-mounting shank to absorb torque produced through the laterally off-set resultant forces which are non-collinear with the longitudinal axis of the handle, and trapezoidal flattened portions flaring in the direction of the brush end of said handle and disposed at the end of said handle which forms the base of the handle.
Claim 2
Dependent Claim
195 words
A brush handle which is proportioned to be of a length not substantially greater than an average adult hand width, said handle having two opposed convexly shaped sides which extend between opposite handle ends and arched in opposite directions to provide a maximum width approximately midway of the handle, a second pair of convex sides arched in opposite directions and proportioned to provide a maximum dimension approximately midway of the handle in length, such pair of opposed sides being joined by edges running in the direction of the axis of the handle length and adapted to form an eight cornered cross-sectional shape providing a ball-like configuration whereby substantially uniform pressure distribution is effected between the grip of the user and the confronting surfaces of the handle, recess means forming a contact surface for the thumb at that end of the handle forming a tool-mounting shank to absorb torque produced through the laterally off-set resultant forces which are non-collinear with the longitudinal axis of the handle, and trapezoidal flattened portions flaring in the direction of the brush end of said handle and disposed at the end of said handle which forms the base of the handle.
Claim 3
Dependent Claim
32 words
The handle construction in accordance with Claim 1 wherein each of the said eight cornered cross-sectional surfaces are characterized by relatively smooth and gradual transition from the sides adjoined by such corners.
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) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |