US4360136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for shearing off rivet mounted sickle teeth
Assignee: Individual
•
Filing: 1980-08-11
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Granted: 1982-11-23
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Expires: 2000-08-11
Abstract
Abstract A tool for removing damaged sickle teeth from a supporting sickle bar. A support member supports the sickle bar on edge with the damaged teeth being disposed within an open area of the tool. An impact member is vertically slidably mounted and transfers hammer blows to the tooth upper edge to cause shearing off of the rivets mounting the tooth to the sickle bar. The impact member, in its lowermost position, serves as an anvil during the riveting of a replacement tooth onto the sickle bar.
Inventors
- 👤 Merle R. Bates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:23
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/38; B21J15/50; B26; B26F; B26F3/00; B26F3/002; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/371; Y10T29/00; Y10T29/49; Y10T29/49815; Y10T29/49821; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/929; Y10T83/9454
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
130 words
A tool for shearing rivets passing through and joining sickle teeth to a sickle bar, said tool comprising, a base including lengthwise extending upright support members having an opening therebetween, one of said support members having an upper planar surface on which a sickle bar may be temporarily positioned on edge with a sickle tooth disposed in said opening, guide means on said base, and an impact member mounted for vertical sliding movement on said guide means, said impact member being of clevis shape to straddle said support members and having an impact surface for contact with the edge of the sickle tooth whereby blows delivered to said impact member are imparted to and cause said tooth to impart a shearing force to rivets joining the sickle bar and tooth.
Claim 2
Dependent Claim
130 words
A tool for shearing rivets passing through and joining sickle teeth to a sickle bar, said tool comprising, a base including lengthwise extending upright support members having an opening therebetween, one of said support members having an upper planar surface on which a sickle bar may be temporarily positioned on edge with a sickle tooth disposed in said opening, guide means on said base, and an impact member mounted for vertical sliding movement on said guide means, said impact member being of clevis shape to straddle said support members and having an impact surface for contact with the edge of the sickle tooth whereby blows delivered to said impact member are imparted to and cause said tooth to impart a shearing force to rivets joining the sickle bar and tooth.
Claim 3
Dependent Claim
51 words
The tool claimed in claim 1 wherein said impact member has a planar surface at its upper end, said impact member at its lower limit of travel being in abutment with said base enabling an upper surface of the impact member to be utilized as an anvil in a riveting operation.
Claim 4
Dependent Claim
51 words
The tool claimed in claim 2 wherein said impact member includes legs of a vertical height greater than the combined vertical height of the first mentioned upright members and that of a sickle bar positionable thereon to at all times avoid damaging contact between the impact member and the sickle bar.
Claim 5
Dependent Claim
33 words
The tool claimed in claim 3 wherein said guide means comprises a pair of guides which cooperate with said upright support members to constrain the impact member for travel in a vertical path.
References Cited (Backward Citations)
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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) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |