Patent US5909887A successfully refreshed from Google Patents.
US5909887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mower sulky
Assignee: MTD Products Inc
•
Filing: 1996-11-26
•
Granted: 1999-06-08
•
Expires: 2016-11-26
Abstract
Abstract A sulky for a self propelled lawn mower, the sulky being interconnected by a pivot frame and a horizontal pivot to the mower frame, and a vertical pivot between the sulky frame and wheels in order to retain the operator in a constant position in respect to the mower under all operator conditions.
Inventors
- 👤 Gerald Hobrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:33
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/001; B; B60; B60D; B60D1/00; B60D1/14; B60D1/167; A01D2101/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
209 words
A sulky for use with an associated self-propelled apparatus having a frame, said sulky comprising: a sulky frame; a sulky stand supported by said sulky frame; a wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel; and, a pivot frame for connecting said sulky stand to the frame, said pivot frame having first and second ball ends receivable by first and second brackets for connection to the apparatus frame, said first ball end being detachably connected to said first bracket by a first removable pin disposed through said first ball end and said first bracket, said second ball end being detachably connected to said second bracket by a second removable pin disposed through said second ball end and said second bracket, said pivot frame being vertically pivotable about said first removable pin in said first bracket and said second removable pin in said second bracket, said pivot frame further having a pin extending longitudinally backwards off a back end of said pivot frame, said pin being receivable by a hole in said sulky frame, said pin being supported in said hole in said sulky frame by a bearing, said sulky frame being rotatably connected to said pivot frame by said pin.
Claim 2
Dependent Claim
209 words
A sulky for use with an associated self-propelled apparatus having a frame, said sulky comprising: a sulky frame; a sulky stand supported by said sulky frame; a wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel; and, a pivot frame for connecting said sulky stand to the frame, said pivot frame having first and second ball ends receivable by first and second brackets for connection to the apparatus frame, said first ball end being detachably connected to said first bracket by a first removable pin disposed through said first ball end and said first bracket, said second ball end being detachably connected to said second bracket by a second removable pin disposed through said second ball end and said second bracket, said pivot frame being vertically pivotable about said first removable pin in said first bracket and said second removable pin in said second bracket, said pivot frame further having a pin extending longitudinally backwards off a back end of said pivot frame, said pin being receivable by a hole in said sulky frame, said pin being supported in said hole in said sulky frame by a bearing, said sulky frame being rotatably connected to said pivot frame by said pin.
Claim 3
Dependent Claim
238 words
A sulky for use with an associated self-propelled apparatus having a frame, said sulky comprising; a sulky frame; a sulky stand supported by said sulky frame; a wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel; a pivot frame for connecting said sulky frame to the frame, said pivot frame having a) a first ball end receivable by a first bracket connected to the frame, said first ball end being detachably connected to said first bracket by a first removable pin disposed through said first ball end and said first bracket, said pivot frame being vertically pivotable about said first removable pin and said first bracket; b) means for connecting said sulky frame to said pivot frame, said means being a pin extending longitudinally backwards off a back end of said pivot frame, said pin being receivable by a hole in said sulky frame, said sulky frame being rotatably connected to said pivot frame by said pin; and, c) a second ball end receivable by a second bracket for connection to the apparatus frame and horizontally spaced from said first bracket, thereby minimizing longitudinal angular pivoting of said sulky stand, said second ball end being detachably connected to said second bracket by a second removable pin disposed through said second ball end and said second bracket, said pivot frame being pivotable about said second removable pin in said second bracket.
Claim 4
Dependent Claim
238 words
A sulky for use with an associated self-propelled apparatus having a frame, said sulky comprising; a sulky frame; a sulky stand supported by said sulky frame; a wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel; a pivot frame for connecting said sulky frame to the frame, said pivot frame having a) a first ball end receivable by a first bracket connected to the frame, said first ball end being detachably connected to said first bracket by a first removable pin disposed through said first ball end and said first bracket, said pivot frame being vertically pivotable about said first removable pin and said first bracket; b) means for connecting said sulky frame to said pivot frame, said means being a pin extending longitudinally backwards off a back end of said pivot frame, said pin being receivable by a hole in said sulky frame, said sulky frame being rotatably connected to said pivot frame by said pin; and, c) a second ball end receivable by a second bracket for connection to the apparatus frame and horizontally spaced from said first bracket, thereby minimizing longitudinal angular pivoting of said sulky stand, said second ball end being detachably connected to said second bracket by a second removable pin disposed through said second ball end and said second bracket, said pivot frame being pivotable about said second removable pin in said second bracket.
Claim 5
Dependent Claim
34 words
The sulky of claims 2 wherein said pin is supported in said hole in said sulky frame by a bearing, thereby producing increased rotation of said sulky frame with respect to said pivot frame.
Claim 6
Dependent Claim
26 words
The sulky of claim 3 further comprising: a second wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel.
Claim 7
Dependent Claim
218 words
A sulky for use with an associated self-propelled apparatus having a frame, said sulky comprising; a sulky frame; a sulky stand supported by said sulky frame; a wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel; a pivot frame for connecting said sulky stand to the frame, said pivot frame having first and second ball ends receivable by first and second brackets for connection to the apparatus frame, said first ball end being detachably connected to said first bracket by a first removable pin disposed through said first ball end and said first bracket, said second ball end being detachably connected to said second bracket by a second removable pin disposed through said second ball end and said second bracket, said pivot frame being vertically pivotable about said first removable pin in said first bracket and said second removable pin in said second bracket; and, a pin extending longitudinally backwards off a back end of said pivot frame, said pin being receivable by a hole in said sulky frame, said sulky frame being rotatably connected to said pivot frame by said pin, said pin being supported in said hole in said sulky frame by a bearing, thereby producing increased rotation of said sulky frame with respect to said pivot frame.
Claim 8
Dependent Claim
218 words
A sulky for use with an associated self-propelled apparatus having a frame, said sulky comprising; a sulky frame; a sulky stand supported by said sulky frame; a wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel; a pivot frame for connecting said sulky stand to the frame, said pivot frame having first and second ball ends receivable by first and second brackets for connection to the apparatus frame, said first ball end being detachably connected to said first bracket by a first removable pin disposed through said first ball end and said first bracket, said second ball end being detachably connected to said second bracket by a second removable pin disposed through said second ball end and said second bracket, said pivot frame being vertically pivotable about said first removable pin in said first bracket and said second removable pin in said second bracket; and, a pin extending longitudinally backwards off a back end of said pivot frame, said pin being receivable by a hole in said sulky frame, said sulky frame being rotatably connected to said pivot frame by said pin, said pin being supported in said hole in said sulky frame by a bearing, thereby producing increased rotation of said sulky frame with respect to said pivot frame.
Claim 9
Dependent Claim
26 words
The sulky of claim 5 further comprising: a second wheel connected to said sulky frame to support said sulky frame and said sulky stand for travel.
References Cited (Backward Citations)
US224390A
Cited
US800317A
Cited
US825872A
Cited
US1539644A
Cited
US2218064A
Cited
FR947903A
Cited
US2659287A
Cited
AT234421B
Cited
FR1358495A
Cited
US3175846A
Cited
US3398279A
Cited
US3909042A
Cited
US3998471A
Cited
US4192525A
Cited
US4989351A
Cited
US5468007A
Cited
US5413364A
Cited
US5685554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-06-07 | 2002-12-07 | 2003-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-07 | 2006-12-07 | 2007-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-07 | 2010-12-07 | 2011-06-08 | $7700.00 | Window Closed / Lapsed |