Patent US4299020A successfully refreshed from Google Patents.
US4299020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flywheel puller
Assignee: Individual
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Filing: 1980-03-26
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Granted: 1981-11-10
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Expires: 2000-03-26
Abstract
Abstract A flywheel puller includes a pair of planar surfaces disposed at an angle to each other with each surface having a center hole and at least one set of holes concentrically arranged around each center hole to accommodate threaded members for use in engaging and removing a flywheel from the crankshaft of an engine whereby the same puller may be used for different types of engines in accordance with the planar section being utilized.
Inventors
- 👤 Joseph F. Grego, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:42
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/023; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53848; Y10T29/53857; Y10T29/53861
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
361 words
A puller for flywheels and the like removably attached to an engine having a crankshaft, said puller comprising a first planar plate section, a second planar plate section attached to and extending away from said first plate section at an obtuse angle thereto whereby said plate sections are in different planes, crankshaft manipulating means on said first plate section for facilitating the manipulation of the crankshaft relative to the flywheel for imparting relative linear movement between the crankshaft and the flywheel, said crankshaft manipulating means including a center bore extending completely through said first plate section for being selectively disposed in line with the crankshaft, flywheel engaging means on said first plate section for selectively detachably mounting said first plate section to the flywheel, said first plate section flywheel engaging means including at least one set of coarcuate holes extending completely through said first plate section concentrically around said first plate section center bore for alignment with a corresponding set of holes in the flywheel whereby mounting members may be selectively inserted through said holes in said first plate section and engaged in the corresponding flywheel holes, said first plate section center bore having a larger diameter than the diameter of said first plate section holes, crankshaft manipulating means on said second plate section for facilitating the manipulation of the crankshaft relative to the flywheel for imparting relative movement between the crankshaft and the flywheel, said crankshaft manipulating means including a center bore extending completely through said second plate section for being selectively disposed in line with the crankshaft, flywheel engaging means on said second plate section for selectively mounting said second plate section to the flywheel, said second plate section flywheel engaging means including at least one set of coarcuate holes extending completely through said second plate section concentrically arranged around said second plate section center bore for alignment with a corresponding set of holes in the flywheel whereby mounting members may be selectively inserted through said holes in said second plate section and engaged in the corresponding flywheel holes, and said second plate section center bore having a larger diameter than the diameter of said second plate section holes.
Claim 2
Dependent Claim
361 words
A puller for flywheels and the like removably attached to an engine having a crankshaft, said puller comprising a first planar plate section, a second planar plate section attached to and extending away from said first plate section at an obtuse angle thereto whereby said plate sections are in different planes, crankshaft manipulating means on said first plate section for facilitating the manipulation of the crankshaft relative to the flywheel for imparting relative linear movement between the crankshaft and the flywheel, said crankshaft manipulating means including a center bore extending completely through said first plate section for being selectively disposed in line with the crankshaft, flywheel engaging means on said first plate section for selectively detachably mounting said first plate section to the flywheel, said first plate section flywheel engaging means including at least one set of coarcuate holes extending completely through said first plate section concentrically around said first plate section center bore for alignment with a corresponding set of holes in the flywheel whereby mounting members may be selectively inserted through said holes in said first plate section and engaged in the corresponding flywheel holes, said first plate section center bore having a larger diameter than the diameter of said first plate section holes, crankshaft manipulating means on said second plate section for facilitating the manipulation of the crankshaft relative to the flywheel for imparting relative movement between the crankshaft and the flywheel, said crankshaft manipulating means including a center bore extending completely through said second plate section for being selectively disposed in line with the crankshaft, flywheel engaging means on said second plate section for selectively mounting said second plate section to the flywheel, said second plate section flywheel engaging means including at least one set of coarcuate holes extending completely through said second plate section concentrically arranged around said second plate section center bore for alignment with a corresponding set of holes in the flywheel whereby mounting members may be selectively inserted through said holes in said second plate section and engaged in the corresponding flywheel holes, and said second plate section center bore having a larger diameter than the diameter of said second plate section holes.
Claim 3
Dependent Claim
62 words
The puller of claim 1, in combination therewith, a flywheel attached to an engine having a crankshaft, said first plate section center bore being threaded, a center bolt threadedly engaged in said threaded center bore and disposed in contact with said crankshaft, said mounting members being bolts extending through said first plate section holes and threadedly engaged in holes in said flywheel.
Claim 4
Dependent Claim
91 words
The puller of claim 1, in combination therewith, a flywheel attached to an engine having a crankshaft, the outer end of said crankshaft being of smooth outer surface, said crankshaft having a threaded portion adjacent said smooth portion, a nut engaged on said threaded portion of said crankshaft, said smooth portion of said crankshaft extending through said second plate section bore, said second plate section being disposed against said nut, and said mounting members being bolts extending through said second plate section holes and threadedly engaged in holes in said flywheel.
Claim 5
Dependent Claim
24 words
The puller of claim 1 wherein said set of holes in at least one of said plate sections is in the form of slots.
Claim 6
Dependent Claim
14 words
The puller of claim 1 wherein said first plate section center bore is threaded.
Claim 7
Dependent Claim
22 words
The puller of claim 5 wherein at least one of said plate sections has a plurality of sets of said coarcuate holes.
Claim 8
Dependent Claim
14 words
The puller of claim 6 wherein said second plate section center bore is smooth.
Claim 9
Dependent Claim
19 words
The puller of claim 7 wherein each of said plate sections has a plurality of sets of coarcuate holes.
Claim 10
Dependent Claim
43 words
The puller of claim 8 including a bolt extending through each hole in one of said sets of coarcuate holes to comprise said mounting members, and a nut on each of said bolts between the head of its bolt and its plate section.
Claim 11
Dependent Claim
16 words
The puller of claim 9 including a center bolt threadably engaged with said threaded center bore.
Claim 12
Dependent Claim
22 words
The puller of claim 10 wherein said plate sections are at an angle of about 130 degrees with respect to each other.
Claim 13
Dependent Claim
35 words
The puller of claim 10 wherein each of said sets of holes in said first plate section comprises three holes, and each of said sets of holes in said second plate section comprising two holes.
Claim 14
Dependent Claim
22 words
The puller of claim 1 wherein at least one of said plate sections has a plurality of sets of said coarcuate holes.
Claim 15
Dependent Claim
19 words
The puller of claim 1 wherein each of said plate sections has a plurality of sets of coarcuate holes.
Claim 16
Dependent Claim
43 words
The puller of claim 1 including a bolt extending through each hole in one of said sets of coarcuate holes to comprise said mounting members, and a nut on each of said bolts between the head of its bolt and its plate section.
Claim 17
Dependent Claim
26 words
The puller of claim 10 wherein said plate sections are at an angle in the range of 120 to 140 degrees with respect to each other.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |