Patent US3969877A successfully refreshed from Google Patents.
US3969877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edger attachments
Assignee: Individual
•
Filing: 1974-10-10
•
Granted: 1976-07-20
•
Expires: 1994-10-10
Abstract
Abstract An edger attachment for a lawn mower having a means for engaging and disengaging the attachment readily and completely from the mower and wherein the attachment is provided with a blade rotatable by the mower driving means in a normal vertical plane but which may be quickly and easily adjusted for trimming without turning the blade to the conventional horizontal position.
Inventors
- 👤 Robert J. Moss
- 👤 Forrest G. Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:46
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/835; A01D34/84; A01G; A01G3/00; A01G3/06; A01G3/062
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
An edger attachment for a lawn mower comprising an edger receiving assembly adapted for attachment to the deck of a lawn mower and a blade cutting assembly adapted for attachment to said receiving assembly, said receiving assembly including a pulley arranged in drivable relationship with the driving means of said mower, a tubular socket member on said receiving assembly, an arm rotatably mounted on said socket member, a blade supporting housing on said cutting assembly having a mounting shaft adapted for insertion into said socket member and means for locking the same thereto against axial movement along said shaft, a control rod rotatably affixed to said arm and remotely connected to the handlebar of said mower for moving said arm through arcuate movements in a vertical plane, said blade supporting housing including a blade supporting shaft having a rotatable pulley adapted for connection with a pulley on said receiving assembly by a driving belt, said blade supporting housing also including a bearing for said supporting shaft, said bearing being slidably mounting in said housing and spring means for normally urging said bearing forwardly in said housing to place a yieldable pressure against said driving belt.
Claim 2
Dependent Claim
195 words
An edger attachment for a lawn mower comprising an edger receiving assembly adapted for attachment to the deck of a lawn mower and a blade cutting assembly adapted for attachment to said receiving assembly, said receiving assembly including a pulley arranged in drivable relationship with the driving means of said mower, a tubular socket member on said receiving assembly, an arm rotatably mounted on said socket member, a blade supporting housing on said cutting assembly having a mounting shaft adapted for insertion into said socket member and means for locking the same thereto against axial movement along said shaft, a control rod rotatably affixed to said arm and remotely connected to the handlebar of said mower for moving said arm through arcuate movements in a vertical plane, said blade supporting housing including a blade supporting shaft having a rotatable pulley adapted for connection with a pulley on said receiving assembly by a driving belt, said blade supporting housing also including a bearing for said supporting shaft, said bearing being slidably mounting in said housing and spring means for normally urging said bearing forwardly in said housing to place a yieldable pressure against said driving belt.
Claim 3
Dependent Claim
49 words
The device as claimed in claim 1 wherein said blade supporting shaft is provided with a cutting blade adapted to revolve in a vertical plane and means for setting a depth of cut by said blade with respect to the ground level on which said mower is being used.
Claim 4
Dependent Claim
84 words
The device as claimed in claim 2 wherein said cutting blade is provided with a pair of foldable side cutting blades, one of said pair being mounted near each end of said cutting blade, each side cutting blade including a leg portion extended laterally along and adjacent to said blade and pivotally mounted thereto while the opposite end of said blade is bent substantially 90° outwardly from the plane of said blade to constitute a cutter member for trimming grass in a horizontal plane.
Claim 5
Dependent Claim
57 words
The claim as in claim 3 including a nesting means for receiving said foldable side cutting blades when the same are folded around their pivotal axes toward the central axis of said blade, said nesting means provided with stop members to prevent said side cutting blades from being released by centrifugal force upon rotation of said blade.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |