US4095338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn trimmer equipped with flexible line cutting edges
Assignee: KAAZ MACHINERY CO Ltd
•
Filing: 1977-06-27
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Granted: 1978-06-20
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Expires: 1997-06-27
Abstract
Abstract A lawn trimmer equipped with flexible line cutting edges including a dish-shaped bobbin housing having an open end, a rotary shaft provided in the housing for being driven by a prime mover, a bobbin provided on the shaft and having a top flange which closes the open end of the housing, a flexible line wound on the bobbin, at least one finger grip provided in the top flange such that the bobbin may be rotated manually, at least one flexible line extension hole provided in a bottom of the housing, and a guide plate coupled to the housing.
Inventors
- 👤 Hobara Naohiko
- 👤 Hori Katsumi
- 👤 Sugimoto Sadanobu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:41
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/416; A01D34/4161
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A lawn trimmer provided with flexible line cutting edges comprising: a dish-shaped bobbin housing having an open top end; a rotary shaft provided in said housing; a bobbin rotatably provided on said shaft and having a bottom flange and having a top flange closing said open top end of said housing; a flexible line wound on said bobbin; at least one finger grip provided in said top flange such that said bobbin may be rotated manually independently of said housing; at least one flexible line extension hole provided in a bottom of said housing; and a guide plate coupled to said housing.
Claim 2
Dependent Claim
102 words
A lawn trimmer provided with flexible line cutting edges comprising: a dish-shaped bobbin housing having an open top end; a rotary shaft provided in said housing; a bobbin rotatably provided on said shaft and having a bottom flange and having a top flange closing said open top end of said housing; a flexible line wound on said bobbin; at least one finger grip provided in said top flange such that said bobbin may be rotated manually independently of said housing; at least one flexible line extension hole provided in a bottom of said housing; and a guide plate coupled to said housing.
Claim 3
Dependent Claim
32 words
A lawn trimmer according to claim 1 further comprising at least two indentations provided in said bottom flange and at least two spring loaded balls provided in said housing opposite said indentations.
Claim 4
Dependent Claim
13 words
A lawn trimmer according to claim 2 wherein said flexible line is nylon.
Claim 5
Dependent Claim
13 words
A lawn trimmer according to claim 1 wherein said flexible line is nylon.
Claim 6
Dependent Claim
29 words
A lawn trimmer according to claim 1 wherein a gap of slightly greater than the diameter of said flexible line is provided between said housing and said guide plate.
Claim 7
Dependent Claim
29 words
A lawn trimmer according to claim 2 wherein a gap of slightly greater than the diameter of said flexible line is provided between said housing and said guide plate.
Claim 8
Dependent Claim
29 words
A lawn trimmer according to claim 3 wherein a gap of lightly greater than the diameter of said flexible line is provided between said housing and said guide plate.
Claim 9
Dependent Claim
45 words
A lawn trimmer according to claim 7 further comprising: an engine; a clutch coupled to the out put of said engine; a main shaft coupled to an output side of said clutch; and a gear box coupled between said main shaft and said guide plate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |