US4047545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation tool
Assignee: Dennison Manufacturing Co
•
Filing: 1977-03-24
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Granted: 1977-09-13
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Expires: 1997-03-24
Abstract
Abstract A tool that is particularly suitable for the installation of objects that require tensioning and severing. A tensioning member is operated through a toggle linkage that collapses when a pre-determined level of tensioning is reached and actuates a cutoff lever. The result is severence of the tensioned object with reduced shock loading. In addition the tool is easy to operate; the tensioning level is accurately and reliably adjustable; and the severed object is controllably ejected from the tool.
Inventors
- 👤 Joseph R. Paradis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:25
CPC Classifications
B; B65; B65B; B65B13/00; B65B13/02; B65B13/025; B65B13/027; F; F16; F16L; F16L3/00; F16L3/08; F16L3/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
94 words
A tool for tensioning an item having a free end, comprising means for gripping and drawing the free end of the item; means for severing an end portion of said item; first and second pivotally connected links connected to the drawing means; means for applying force to said drawing means through said first and second links to apply tension to the end of said item; and means for maintaining said links in relative alignment until the applied force reaches a prescribed level whereupon said links pivot out of alignment and operate the severing means.
Claim 2
Dependent Claim
94 words
A tool for tensioning an item having a free end, comprising means for gripping and drawing the free end of the item; means for severing an end portion of said item; first and second pivotally connected links connected to the drawing means; means for applying force to said drawing means through said first and second links to apply tension to the end of said item; and means for maintaining said links in relative alignment until the applied force reaches a prescribed level whereupon said links pivot out of alignment and operate the severing means.
Claim 3
Dependent Claim
35 words
A tensioning tool in accordance with claim 1 wherein the maintaining means comprises means for applying force to said first and second links at an angle with respect to the force applied through said links.
Claim 4
Dependent Claim
32 words
The tensioning tool of claim 2 wherein said maintaining means comprises a lever arm with force applied to one end and said first and second links pivotally connected to the other end.
Claim 5
Dependent Claim
64 words
A tensioning tool in accordance with claim 1 wherein the first link is pivotally connected to said drawing means; the second link is pivotally connected to said first link and to the force applying means and the means for maintaining said links in relative alignment comprises means for applying a prescribed force to the pivotal connection of said first link with said second link.
Claim 6
Dependent Claim
26 words
A tensioning tool in accordance with claim 4 further including means for limiting the movement of said first and second links when force is applied thereto.
Claim 7
Dependent Claim
19 words
A tensioning tool in accordance with claim 5 wherein the limiting means comprises a slot in said drawing means.
Claim 8
Dependent Claim
28 words
A tensioning tool in accordance with claim 3 wherein said first and second links, when pivoted out of alignment act upon a cam surface of said sever mechanism.
Claim 9
Dependent Claim
28 words
An installation tool in accordance with claim 3 wherein said first and second links are operated by a lever pivotally connected thereto and the housing of said tool.
Claim 10
Dependent Claim
37 words
An installation tool in accordance with claim 8 wherein said lever is driven by a trigger which is pivotally connected between the pivotal connection of said lever to said housing and to said first and second links.
References Cited (Backward Citations)
US3735784A
Cited
US3752199A
Cited
US3782426A
Cited
US3810499A
Cited
US3830263A
Cited
US3891012A
Cited
US3931838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |