US4909024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for trimming lawns
Assignee: TRIM-A-LAWN Corp
•
Filing: 1989-02-14
•
Granted: 1990-03-20
•
Expires: 2009-02-14
Abstract
Abstract The present invention discloses an improved apparatus, for trimming lawns and the like, comprising a housing having a rear ground engaging means, a cutting means extending beyond the front and substantially the left and right sides of the housing for permitting trimming of vegetation growing close to an obstruction, a skirt for preventing debris from being propelled rearwardly by the cutting means, and a removable front ground engaging means.
Inventors
- 👤 Dallas W. Jones
- 👤 Lauren J. Young
- 👤 Matthew F. Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:47
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/81; A01D34/835; A01D34/84; A01D2101/00; Y; Y10; Y10S; Y10S56/00; Y10S56/09
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
282 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a top deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge ;while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming; (i) front ground engaging means for permitting said housing to be moved on said lawn during trimming; (j) means for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; (k) said releasable mounting means including a substantially U-shaped frame extending outwardly and forwardly from said front portion of said housing; and (l) said frame including a base releasably secured to said front portion of said housing and first and second arms operably associated with said front ground engaging means; and (m) drive means for said cutting means.
Claim 2
Independent Claim
282 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a top deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge ;while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming; (i) front ground engaging means for permitting said housing to be moved on said lawn during trimming; (j) means for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; (k) said releasable mounting means including a substantially U-shaped frame extending outwardly and forwardly from said front portion of said housing; and (l) said frame including a base releasably secured to said front portion of said housing and first and second arms operably associated with said front ground engaging means; and (m) drive means for said cutting means.
Claim 3
Dependent Claim
28 words
An apparatus, as in claim 1, wherein: (a) said releasable mounting means includes means for adjusting the height of said front portion of said housing above the ground.
Claim 4
Dependent Claim
47 words
An apparatus as in claim 2, wherein: (a) said first and second arms of said frame includes first and second end portions, respectively, extending downwardly from said first and second arms; and (b) said height adjusting means is operably associated with said first and second end portions.
Claim 5
Dependent Claim
64 words
An apparatus as in claim 3, wherein: (a) said height adjusting means includes a plurality of cooperating pairs of holes disposed in said first and second portions at different heights above the ground for rotatably mounting said front ground engaging means in any of said plurality of cooperating pairs of holes, thereby raising or lowering said front portion of said housing above the ground.
Claim 6
Dependent Claim
18 words
An apparatus as in claim 4, wherein: (a) said front ground engaging means includes at least a wheel.
Claim 7
Dependent Claim
20 words
An apparatus as in claim 5, wherein: (a) said front ground engaging means includes at least a pair of wheels.
Claim 8
Dependent Claim
26 words
An apparatus, as in claim 1, wherein: (a) said housing includes means for adjusting the height of said rear portion of said housing above the ground.
Claim 9
Dependent Claim
42 words
An apparatus as in claim 7, wherein: (a) said adjusting means includes a plurality of holes at different heights above the ground for mounting said rear ground engaging means thereby raising or lowering said rear portion of said housing above the ground.
Claim 10
Dependent Claim
18 words
An apparatus as in claim 8, wherein: (a) said rear ground engaging means includes at least a wheel.
Claim 11
Dependent Claim
35 words
An apparatus, as in claim 1, wherein: (a) said front portion of said housing is arcuate for permitting said operable portion of said cutting means to extend beyond a substantial portion of said front portion.
Claim 12
Dependent Claim
27 words
An apparatus as in claim 1, wherein: (a) said housing includes fender means cooperating with said skirt for directing debris propelled by said cutting means substantially sidewardly.
Claim 13
Dependent Claim
32 words
An apparatus as in claim 11, wherein: (a) said skirt includes left and right side portions; and (b) said fender means extends laterally from each of said left and right side portions.
Claim 14
Dependent Claim
22 words
An apparatus as in claim 12, wherein: (a) each of said fender means is disposed forwardly of said rear ground engaging means.
Claim 15
Independent Claim
208 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) a rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a top deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) at least a rear wheel being operably associated with said housing; (i) a front wheel assembly; (j) means operable from above said top deck for releasably mounting said front wheel assembly to said front portion of said housing for permitting separation of said assembly from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; and (k) drive means for said cutting means.
Claim 16
Independent Claim
208 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) a rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a top deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) at least a rear wheel being operably associated with said housing; (i) a front wheel assembly; (j) means operable from above said top deck for releasably mounting said front wheel assembly to said front portion of said housing for permitting separation of said assembly from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; and (k) drive means for said cutting means.
Claim 17
Dependent Claim
16 words
An apparatus as in claim 14, wherein: (a) said rotatable cutting means includes flexible cutting elements.
Claim 18
Independent Claim
239 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) a rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a top deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming; (i) front ground engaging means for permitting said housing to be moved on said lawn during trimming; (j) means operable from above said top deck for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; and (k) drive means for said cutting means.
Claim 19
Independent Claim
239 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) a rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a top deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming; (i) front ground engaging means for permitting said housing to be moved on said lawn during trimming; (j) means operable from above said top deck for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; and (k) drive means for said cutting means.
Claim 20
Dependent Claim
24 words
An apparatus as in claim 16, wherein: (a) said releasable mounting means includes a frame extending outwardly from said front portion of said housing.
Claim 21
Dependent Claim
22 words
An apparatus as in claim 17, wherein: (a) said frame includes a base releasably secured to said front portion of said housing.
Claim 22
Dependent Claim
16 words
An apparatus as in claim 17, wherein: (a) said frame is secured to said top deck.
Claim 23
Independent Claim
264 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a tip deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming; (i) front ground engaging means for permitting said housing to be moved on said lawn during trimming; (j) means for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; (k) said releasable mounting means including means for mounting said front ground engaging means forwardly of said front portion of said housing and forwardly of said operable portion of said cutting means; and (l) drive means for said cutting means.
Claim 24
Independent Claim
264 words
An apparatus for trimming around obstructions on lawns and the like, comprising: (a) a housing; (b) rotatable cutting means for mounting in said housing for trimming vegetation; (c) said housing having front and rear portions; (d) said housing including a tip deck; (e) said top deck having a periphery including first and second lower edges; (f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means; (g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly; (h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming; (i) front ground engaging means for permitting said housing to be moved on said lawn during trimming; (j) means for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; (k) said releasable mounting means including means for mounting said front ground engaging means forwardly of said front portion of said housing and forwardly of said operable portion of said cutting means; and (l) drive means for said cutting means.
Claim 25
Dependent Claim
24 words
An apparatus as in claim 20, wherein: (a) said releasable mounting means includes a frame extending outwardly from said front portion of said housing.
Claim 26
Dependent Claim
24 words
An apparatus as in claim 21, wherein: (a) said frame is substantially U-shaped extending outwardly and forwardly from said front portion of said housing.
Claim 27
Dependent Claim
35 words
An apparatus as in claim 22, wherein: (a) said frame includes a base releasably secured to said front portion of said housing and first and second arms operably associated with said front ground engaging means.
Claim 28
Dependent Claim
16 words
An apparatus as in claim 21, wherein: (a) said frame is secured to said top deck.
References Cited (Backward Citations)
GB189721371A
Cited
US2502696A
Cited
US2671299A
Cited
US3496707A
Cited
US4232505A
Cited
US4378668A
Cited
US4341060A
Cited
US4351143A
Cited
US4466235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |