IP Library Granted Patent US 12,246,431
Granted Patent B2
US 12,246,431 · App. 18/517,729 · Granted Mar 11, 2025

Dethatcher systems and methods

Inventors: Kyle Harvey (West Allis, WI); Ryan Jaskowiak (Mukwonago, WI); Matthew S. Zurawski (Whitewater, WI)
Assignee: Briggs & Stratton, LLC
B25G3/38A01B45/026A01D43/14A01B1/06A01B33/103A01B33/142A01B45/00A01B45/02A01D34/475A01D34/67A01D34/824A01D43/063A01D75/006A01D2101/00A01G20/47A47J2037/0777B25F5/02
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Quick Facts
Patent No.
US 12,246,431
App. No.
18/517,729
Granted
Mar 11, 2025
Kind
B2
Abstract

A method of stacking dethatchers includes pivoting an upper portion of a handle on a first dethatcher toward a front end of a frame on the first dethatcher, upon pivoting the upper portion of the handle toward the front end of the frame, exposing a rear support point defined by a lower portion of the handle, and stacking a second dethatcher on the first dethatcher so that the second dethatcher is supported on the rear support point defined by the lower portion of the handle and a front support point defined by the upper portion of the handle.

Claims (38)

1. A method of stacking dethatchers, comprising:

positioning a first dethatcher, the first dethatcher comprising a handle, wherein the handle defines support points comprising a first support point arranged at a forward portion of the handle and a second support point arranged at a rearward portion of the handle;

pivoting the handle of the first dethatcher into a storage position; and

stacking a second dethatcher on the first dethatcher, wherein stacking the second dethatcher on the first dethatcher comprises supporting the second dethatcher on the support points on the handle of the first dethatcher.

2. The method of claim 1 , wherein pivoting the handle of the first dethatcher into the storage position comprises:

rotating an upper portion of the handle relative to a lower portion of the handle.

3. The method of claim 1 , wherein pivoting the handle of the first dethatcher into the storage position comprises:

pivoting a grip portion of the handle toward a front end of a frame of the first dethatcher.

4. The method of claim 1 , wherein pivoting the handle of the first dethatcher into the storage position comprises:

pivoting a grip portion of the handle so that the grip portion is supported on a front end of a frame of the first dethatcher.

5. The method of claim 1 , wherein pivoting the handle of the first dethatcher into the storage position comprises:

pivoting a console of the handle so that a pad that extends from the console engages a frame of the first dethatcher.

6. A method of stacking dethatchers, comprising:

pivoting an upper portion of a handle on a first dethatcher toward a front end of a frame on the first dethatcher;

upon pivoting the upper portion of the handle toward the front end of the frame, exposing a rear support point defined by a lower portion of the handle; and

stacking a second dethatcher on the first dethatcher so that the second dethatcher is supported on the rear support point defined by the lower portion of the handle and a front support point defined by the upper portion of the handle.

7. The method of claim 6 , wherein pivoting the upper portion of the handle toward the front end of the frame on the first dethatcher comprises:

pivoting the upper portion so that the upper portion pivots past an engine of the first dethatcher without engaging the engine.

8. The method of claim 6 , wherein pivoting the upper portion of the handle toward the front end of the frame on the first dethatcher comprises:

pivoting a grip portion of the upper portion so that the grip portion is supported on the front end of the frame.

9. The method of claim 6 , wherein pivoting the upper portion of the handle toward the front end of the frame on the first dethatcher comprises:

pivoting a console of the upper portion so that a pad that extends from the console engages the frame.

10. A dethatcher assembly, comprising:

a first dethatcher, including:

a first frame; and

a first handle coupled to the first frame, wherein the first handle includes a first upper portion pivotably coupled to a first lower portion so that the first upper portion is configured to pivot between a use position and a storage position; and

a second dethatcher, comprising:

a second frame; and

a second handle coupled to the second frame;

wherein when the first upper portion is in the storage position, the second dethatcher is configured to stack upon the first dethatcher so that the second dethatcher is supported on the first handle of the first dethatcher.

11. The dethatcher assembly of claim 10 , wherein when the first upper portion is in the storage position, the first upper portion is spaced from a first engine of the first dethatcher.

12. The dethatcher assembly of claim 11 , wherein the second dethatcher is configured to stack upon the first dethatcher without interfering with the first engine.

13. The dethatcher assembly of claim 10 , wherein when the first upper portion is pivoted from the use position to the storage position, the first upper portion is pivoted toward a front end of the first frame.

14. The dethatcher assembly of claim 13 , wherein when the first upper portion is in the storage position, a grip portion of the first upper portion is supported on the front end of the first frame.

15. The dethatcher assembly of claim 13 , wherein a console of the first upper portion includes a pad extending outwardly from the console.

16. The dethatcher assembly of claim 15 , wherein when the first upper portion is in the storage position, the pad engages the first frame.

17. The dethatcher assembly of claim 10 , wherein when the first upper portion is in the storage position, the first lower portion of the first handle defines a rear support point and the first upper portion defines a front support point.

18. The dethatcher assembly of claim 17 , wherein the second dethatcher is configured to stack upon the first dethatcher and be supported on the rear support point and the front support point.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 22, 2023
From: HARVEY, KYLE; JASKOWIAK, RYAN; ZURAWSKI, MATTHEW S.
To: BRIGGS & STRATTON CORPORATION
Reel/Frame 065648/0379 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 22, 2023
From: BRIGGS & STRATTON CORPORATION
To: BRIGGS & STRATTON, LLC
Reel/Frame 065663/0598 →
Continuity (6)
Continuation 17240328 · Apr 26, 2021
Continuation 16825810 · Mar 20, 2020
Continuation 15689777 · Aug 29, 2017
Provisional Application 62432997 · Dec 12, 2016
Provisional Application 62380631 · Aug 29, 2016
Related Publication 20240081163A1 · Mar 14, 2024
References Cited (82)
US 1538381A · Bull · 1925 [cited by applicant]
US 1816980A · Lontz · 1931 [cited by applicant]
US 2162783A · Moyer · 1939 [cited by applicant]
US 2283161A · Booton · 1942 [cited by applicant]
US 2786694A · Gray · 1957 [cited by applicant]
US 2861411A · Shock · 1958 [cited by applicant]
US 3481123A · Lessig, III · 1969 [cited by applicant]
US 3564823A · Rhoads · 1971 [cited by applicant]
US 3758967A · Thompson · 1973 [cited by applicant]
US 3764156A · Nepper et al. · 1973 [cited by applicant]
US 3783592A · Schraut · 1974 [cited by applicant]
US 3802170A · Seifert et al. · 1974 [cited by applicant]
US 3945176A · Vicendese et al. · 1976 [cited by applicant]
US 3998034A · Rubin · 1976 [cited by applicant]
US 4041679A · Seifert et al. · 1977 [cited by applicant]
US 4068455A · Zehrung et al. · 1978 [cited by applicant]
US 4191007A · Check et al. · 1980 [cited by applicant]
US 4250695A · Comer et al. · 1981 [cited by applicant]
US 4265079A · Hoffmann · 1981 [cited by examiner]
US 4344273A · Jobling et al. · 1982 [cited by applicant]
US 4446681A · Dynie et al. · 1984 [cited by applicant]
US 4467591A · Dynie · 1984 [cited by applicant]
US 4561239A · Cook · 1985 [cited by applicant]
US 4563867A · Bokon · 1986 [cited by applicant]
US 4601163A · Trelford · 1986 [cited by applicant]
US 5036651A · Nelson · 1991 [cited by applicant]
US 5052135A · Fontaine · 1991 [cited by applicant]
US 5163275A · Hare et al. · 1992 [cited by applicant]
US 5197267A · Aldred et al. · 1993 [cited by applicant]
US 5318180A · Grigsby · 1994 [cited by examiner]
US 5577375A · Tillison, Sr. · 1996 [cited by applicant]
US 5636504A · Kaley et al. · 1997 [cited by applicant]
US 5645293A · Cheng · 1997 [cited by applicant]
US 5822965A · Chesack et al. · 1998 [cited by applicant]
US 6073945A · Cheng · 2000 [cited by applicant]
US 6237313B1 · Leden · 2001 [cited by applicant]
US 6945021B2 · Michel · 2005 [cited by applicant]
US 7121071B2 · Berkeley · 2006 [cited by applicant]
US 7231755B2 · Clarke · 2007 [cited by applicant]
US 8104252B1 · Godley, Jr. · 2012 [cited by applicant]
US 8161720B1 · Humphrey · 2012 [cited by applicant]
US 8316628B2 · Humphrey · 2012 [cited by applicant]
US 8419025B2 · Chen et al. · 2013 [cited by applicant]
US 8544251B2 · Goman et al. · 2013 [cited by applicant]
US 8713761B2 · Grewe et al. · 2014 [cited by applicant]
US 9038356B2 · Shao et al. · 2015 [cited by applicant]
US 9386743B2 · Baker · 2016 [cited by applicant]
US 9491907B2 · Edholm et al. · 2016 [cited by applicant]
US 20010039788A1 · Starr · 2001 [cited by applicant]
US 20020095922A1 · Goman et al. · 2002 [cited by applicant]
US 20030019198A1 · Eavenson, Sr. · 2003 [cited by applicant]
US 20030155137A1 · Iacona · 2003 [cited by applicant]
US 20030178338A1 · Vore · 2003 [cited by examiner]
US 20060096136A1 · Shaffer et al. · 2006 [cited by applicant]
US 20070256401A1 · Hibi et al. · 2007 [cited by applicant]
US 20080196371A1 · Bryant et al. · 2008 [cited by applicant]
US 20100064556A1 · Lau · 2010 [cited by applicant]
US 20100192532A1 · Slater et al. · 2010 [cited by applicant]
US 20100199623A1 · Akahane · 2010 [cited by applicant]
US 20130047566A1 · Takahashi et al. · 2013 [cited by applicant]
US 20140102063A1 · Yamaoka et al. · 2014 [cited by applicant]
US 20140215989A1 · Pilon et al. · 2014 [cited by applicant]
US 20140230394A1 · Zerbarini · 2014 [cited by applicant]
US 20150101301A1 · Yamaoka et al. · 2015 [cited by applicant]
US 20160198627A1 · Wadzinski et al. · 2016 [cited by applicant]
US 20170086375A1 · Yamaoka et al. · 2017 [cited by applicant]
US 20200120867A1 · Yamaoka et al. · 2020 [cited by applicant]
CA 2829898A1 · 2014 [cited by applicant]
CN 104025798A · 2014 [cited by applicant]
EP 1512319A2 · 2005 [cited by examiner]
EP 1695610A1 · 2006 [cited by examiner]
EP 1752036A1 · 2007 [cited by applicant]
EP 3014972A1 · 2016 [cited by applicant]
EP 3766328A1 · 2021 [cited by applicant]
GB 2423001A · 2006 [cited by examiner]
GB 2481106A · 2011 [cited by applicant]
JP H0663745U · 1994 [cited by examiner]
JP 2007116954A · 2007 [cited by examiner]
WO WO2017099644A1 · 2017 [cited by examiner]
Billy Goat Overseeder/Power Rake Owner's Manual, Part No. 350412, Form No. F052215A, 16 pages. [cited by applicant]
Bluebird International Power Rake Operator Manual, Jul. 15, 2015, 32 pages. [cited by applicant]
Ryan Ren-O-Thin Power Rake, Specification Sheet, Schiller Grounds Care, Inc., dated Feb. 11, 2015, 1 page. [cited by applicant]