US4188722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool for removing a nut securely fastened to a bolt
Assignee: Individual
•
Filing: 1978-08-10
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Granted: 1980-02-19
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Expires: 1998-08-10
Abstract
Abstract A cutting tool is provided to efficiently remove a nut from a bolt. An enlongated rod is bifurcated at its lower end to form a pair of arms having cutting edges. A guide collar disposed between the arms is shaped to receive the free end of the bolt and properly position the tool over the nut.
Inventors
- 👤 John O. Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
B; B25; B25D; B25D3/00; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53909; Y10T29/5393
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
A cutting tool for removing a nut which is securely fastened to a bolt comprising: an elongated rod; means defining arms disposed at the lower end of said rod; cutting means disposed at the lower edges of said arms; and a collar rigidly disposed between said arms and having an inside diameter greater than the diameter of said bolt whereby said collar loosely fits over the free end of said bolt positioning said cutting means on said nut fastened to said bolt so that said nut is split in half and thereby separated from said bolt when an impact force is applied to one end of said rod while permitting said elongated rod to be pivoted about the free end of said bolt to facilitate removal of said nut in locations that are difficult to reach with commonly known tools.
Claim 2
Dependent Claim
140 words
A cutting tool for removing a nut which is securely fastened to a bolt comprising: an elongated rod; means defining arms disposed at the lower end of said rod; cutting means disposed at the lower edges of said arms; and a collar rigidly disposed between said arms and having an inside diameter greater than the diameter of said bolt whereby said collar loosely fits over the free end of said bolt positioning said cutting means on said nut fastened to said bolt so that said nut is split in half and thereby separated from said bolt when an impact force is applied to one end of said rod while permitting said elongated rod to be pivoted about the free end of said bolt to facilitate removal of said nut in locations that are difficult to reach with commonly known tools.
Claim 3
Dependent Claim
24 words
The cutting tool of claim 1 wherein said cutting means comprise a pair of chisel edges disposed on the lower extremities of said arms.
Claim 4
Dependent Claim
31 words
The cutting tool of claim 1 including a cap disposed on the top end of said elongated rod opposite said cutting means to provide a surface to apply an impact force.
Claim 5
Dependent Claim
14 words
The cutting tool of claim 1 wherein said collar is welded to said arms.
Claim 6
Dependent Claim
128 words
A cutting tool for removing a nut which is securely fastened to a bolt comprising: an elongated rod; means defining arms disposed at the lower end of said rod; cutting means disposed at the lower edges of said arms; and a collar shaped to receive the free end of said bolt; ring members rigidly affixed to opposite sides of said collar, said ring members engaging said arms in a loose fit whereby said elongated rod may be pivoted slightly about the free end of said bolt when said tool is placed over the free end of said bolt; and means defining a plurality of stops on said arms whereby said ring members are disposed between said stops and prevented from moving in an axial direction along said arms.
Claim 7
Dependent Claim
128 words
A cutting tool for removing a nut which is securely fastened to a bolt comprising: an elongated rod; means defining arms disposed at the lower end of said rod; cutting means disposed at the lower edges of said arms; and a collar shaped to receive the free end of said bolt; ring members rigidly affixed to opposite sides of said collar, said ring members engaging said arms in a loose fit whereby said elongated rod may be pivoted slightly about the free end of said bolt when said tool is placed over the free end of said bolt; and means defining a plurality of stops on said arms whereby said ring members are disposed between said stops and prevented from moving in an axial direction along said arms.
Claim 8
Dependent Claim
18 words
The cutting tool of claim 5 wherein said ring members are welded to opposite sides of said collar.
Claim 9
Dependent Claim
26 words
The cutting tool of claim 5 or 6 wherein said cutting means comprise a pair of chisel edges disposed on the lower extremities of said arms.
Claim 10
Dependent Claim
31 words
The cutting tool of claim 5 including a cap disposed on the top end of said elongated rod opposite said cutting means to provide a surface to apply an impact force.
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) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |