US4007525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spool for a vegetation cutting apparatus having a flexible line cutting element
Assignee: Individual
•
Filing: 1976-03-23
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Granted: 1977-02-15
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Expires: 1996-03-23
Abstract
Abstract A spool secured by adjustable fastening means within a rotatable member of a vegetation cutter is designed to facilitate adjustment in the length of a flexible line extending from the spool through an opening in the member. The spool includes a first flange having a plurality of projections thereon which engage the member in accordance with pressure applied by the fastening means to a second flange of the spool whereby the spool is selectively permitted to rotate with, or relative to, said member.
Inventors
- 👤 Gordon Francis Utter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:49
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/416; A01D34/4161
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
An improved spool for a vegetation cutting apparatus of the type having a drive shaft, a rotatable member for housing said spool, a flexible line extending from the spool through an opening in said member, and adjustable securing means joined to said shaft for retaining the spool within said member, said spool comprising: a central support portion having an aperture therein for receiving said drive shaft; a first flange located at one end of said support portion; a plurality of spaced projections located on an outer surface of said flange; a second flange located at the opposite end of said support portion and adapted to be engaged by said securing means to cause the projections to engage said rotatable member whereby the spool is selectively joined with said member in rotatable relationship.
Claim 2
Dependent Claim
132 words
An improved spool for a vegetation cutting apparatus of the type having a drive shaft, a rotatable member for housing said spool, a flexible line extending from the spool through an opening in said member, and adjustable securing means joined to said shaft for retaining the spool within said member, said spool comprising: a central support portion having an aperture therein for receiving said drive shaft; a first flange located at one end of said support portion; a plurality of spaced projections located on an outer surface of said flange; a second flange located at the opposite end of said support portion and adapted to be engaged by said securing means to cause the projections to engage said rotatable member whereby the spool is selectively joined with said member in rotatable relationship.
Claim 3
Dependent Claim
26 words
A spool as set forth in claim 1, wherein said projections are radially oriented on said first flange with respect to the axis of said aperture.
Claim 4
Dependent Claim
43 words
A spool as set forth in claim 2, wherein said second flange includes a ring integral with and projecting from an outer surface of said second flange, said ring being concentric with said axis and adapted to be engaged by said securing means.
Claim 5
Dependent Claim
45 words
A spool as set forth in claim 3, further comprising additional projections located on the outer surface of said second flange and radially oriented with respect to the axis of said aperture, said additional projections also being adapted to be engaged by said securing means.
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) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |