US3933019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Riveting device
Assignee: BORROUGHS TOOL AND EQUIPMENT CORP
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Filing: 1974-10-04
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Granted: 1976-01-20
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Expires: 1994-10-04
Abstract
Abstract A tool for installing an internally threaded tubular rivet. A pair of levers are pivotally connected together with one of the levers having a portion with a hole therein. A tubular anvil is received in the hole and is secured to the lever. A rod extends axially through the anvil and is relatively movable with respect to the anvil. A knob or the like is mounted on the rod and is spaced axially from the anvil for rotating the rod relative to the anvil. The knob has an abutment thereon which engages the other lever so that a relative movement between the two levers will effect a relative movement between the rod and the anvil.
Inventors
- 👤 Gary E. Underland
- 👤 Thomas Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:03
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/38; B21J15/386; B21J15/02; B21J15/04; B21J15/043; B25; B25B; B25B27/00; B25B27/0007
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
246 words
A tool for installing an internally threaded tubular rivet, said tool comprising: first and second relatively movable levers, said first lever having a portion with means defining a hole therein, said second lever having surface means thereon spaced above said hole and axially aligned therewith; a tubular anvil having a portion received in said opening, said tubular anvil having enlarged head means defining a radially outwardly extending shoulder thereon, said shoulder engaging said portion of said first lever encircling said hole to locate said anvil relative to said first lever and a threaded portion adjacent said shoulder, said threaded portion being received in said hole and nut means larger in diameter than said hole and having a thread thereon engaged with said threaded portion on said anvil, said nut means engaging said anvil on the opposite side of said portion of said first lever so that said portion of said first lever is clamped between said shoulder and said nut means; releasable fastening means for releasably securing said tubular anvil to said first lever; a rod extending axially through said tubular anvil, said rod and said tubular anvil having axial movement relative to each other; and rotating means on said rod spaced axially from said anvil for rotating said rod relative to said anvil, said rotating means having an abutment thereon engaging said surface means whereby a relative movement between said first and second levers will effect a relative movement between said rod and said anvil.
Claim 2
Dependent Claim
246 words
A tool for installing an internally threaded tubular rivet, said tool comprising: first and second relatively movable levers, said first lever having a portion with means defining a hole therein, said second lever having surface means thereon spaced above said hole and axially aligned therewith; a tubular anvil having a portion received in said opening, said tubular anvil having enlarged head means defining a radially outwardly extending shoulder thereon, said shoulder engaging said portion of said first lever encircling said hole to locate said anvil relative to said first lever and a threaded portion adjacent said shoulder, said threaded portion being received in said hole and nut means larger in diameter than said hole and having a thread thereon engaged with said threaded portion on said anvil, said nut means engaging said anvil on the opposite side of said portion of said first lever so that said portion of said first lever is clamped between said shoulder and said nut means; releasable fastening means for releasably securing said tubular anvil to said first lever; a rod extending axially through said tubular anvil, said rod and said tubular anvil having axial movement relative to each other; and rotating means on said rod spaced axially from said anvil for rotating said rod relative to said anvil, said rotating means having an abutment thereon engaging said surface means whereby a relative movement between said first and second levers will effect a relative movement between said rod and said anvil.
Claim 3
Dependent Claim
75 words
A tool for installing an internally threaded tubular rivet according to claim 1, wherein said first lever comprises a pair of laterally spaced arms joined together adjacent one end by said portion having said hole therein; and wherein said second lever has a bifucated portion adjacent one end for straddling said rod below said abutment; and wherein said surface means is defined by a pair of surfaces, one surface on each of said bifurcated ends.
Claim 4
Dependent Claim
25 words
A tool for installing an internally threaded tubular rivet according to claim 2, wherein said first and second levers are pivotally secured to each other.
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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |