US4476938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerating means
Assignee: LR IRL Corp Inc
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Filing: 1982-08-09
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Granted: 1984-10-16
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Expires: 2002-08-09
Abstract
Abstract This invention is an aerating device particularly suitable for use in connection with golf course greens and similar applications. The device is adapted to be pulled behind a vehicle such as a tractor which also acts as a power source for operation of the aerator. A plurality of crank plates are orbitaly driven which in turn, through a plurality of individual crank arms, drive associated drill bits which auger out the aeration holes. A mobile frame is provided for raising and lowering a drilling apparatus when in use. In a modification of the present invention, a self-propelled vehicle is used to both transport and power the aerating system.
Inventors
- 👤 Leon A. McKay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:41
CPC Classifications
A; A01; A01B; A01B45/00; A01B45/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
165 words
An improved aerating means comprising: a support vehicle; an open, hollow, box-like presser skirt reciprocably mounted on said support vehicle and having a ground engaging presser foot mounted on the lower edge thereof and extending about its periphery; a compressable presser pad mounted on the bottom of said peripheral presser foot and extending downwardly therefrom; a carriage reciprocably mounted within said open, hollow box-like presser skirt and interiorly of said peripheral presser foot and its associated peripheral presser pad; a multiplicity of drill means rotatively mounted on said carriage means interiorly of said presser skirt and its associated peripheral presser foot and presser pad; means for reciprocating said presser skirt up and down relative to the earth; means for reciprocating said carriage means up and down relative to said presser skirt; and means for rotatively driving said drill means mounted on said carriage interiorly of said presser skirt and its associated peripheral presser foot and presser pad whereby a highly efficient aerating means is provided.
Claim 2
Dependent Claim
165 words
An improved aerating means comprising: a support vehicle; an open, hollow, box-like presser skirt reciprocably mounted on said support vehicle and having a ground engaging presser foot mounted on the lower edge thereof and extending about its periphery; a compressable presser pad mounted on the bottom of said peripheral presser foot and extending downwardly therefrom; a carriage reciprocably mounted within said open, hollow box-like presser skirt and interiorly of said peripheral presser foot and its associated peripheral presser pad; a multiplicity of drill means rotatively mounted on said carriage means interiorly of said presser skirt and its associated peripheral presser foot and presser pad; means for reciprocating said presser skirt up and down relative to the earth; means for reciprocating said carriage means up and down relative to said presser skirt; and means for rotatively driving said drill means mounted on said carriage interiorly of said presser skirt and its associated peripheral presser foot and presser pad whereby a highly efficient aerating means is provided.
Claim 3
Dependent Claim
12 words
The aerating means of claim 1 wherein said support vehicle is self-propelled.
Claim 4
Dependent Claim
23 words
The aerating means of claim 2 wherein said support vehicle includes a hump shaped frame to which said presser skirt is reciprocatingly mounted.
Claim 5
Dependent Claim
94 words
An improved aerating means comprising: a support vehicle; a generally box-shaped presser skirt reciprocably mounted on said support vehicle by at least one height adjustable, outwardly extending support arm; a carriage means reciprocably mounted within said presser skirt; a multiplicity of drill means rotatively mounted on said carriage; means for reciprocating said presser skirt up and down relative to the earth; means for reciprocating said carriage up and down relative to said presser skirt; and means for rotatively driving said drill means mounted on said carriage whereby a highly efficient aerating means is provided.
Claim 6
Dependent Claim
94 words
An improved aerating means comprising: a support vehicle; a generally box-shaped presser skirt reciprocably mounted on said support vehicle by at least one height adjustable, outwardly extending support arm; a carriage means reciprocably mounted within said presser skirt; a multiplicity of drill means rotatively mounted on said carriage; means for reciprocating said presser skirt up and down relative to the earth; means for reciprocating said carriage up and down relative to said presser skirt; and means for rotatively driving said drill means mounted on said carriage whereby a highly efficient aerating means is provided.
Claim 7
Dependent Claim
12 words
The aerating means of claim 4 wherein said support vehicle is self-propelled.
Claim 8
Dependent Claim
22 words
The aerating of claim 5 wherein said support vehicle includes a hump shaped frame to which said presser skirt is reciprocatingly mounted.
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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) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |