Patent US3673686A successfully refreshed from Google Patents.
US3673686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead sleeve cutting tool
Assignee: Ajax Tool Works Inc
•
Filing: 1970-12-21
•
Granted: 1972-07-04
•
Expires: 1990-12-21
Abstract
Abstract A ripper tool usable with a pneumatic hammer or the like is provided to cut a soft ductile material such as a lead splice sleeve at a fast rate and with a clean cut. On a forward end of the tool is a ripper section having a pair of spaced toes for sliding along the sleeve and having a ripping tooth which projects inwardly into the sleeve and forces lead which, as it compresses and expands laterally, is forced rearwardly and upwardly through a wide slot between the toes and outwardly above the ripping tooth. Tools to make a circumferentially extending cut may be provided with a downwardly and forwardly projecting ripper section; and tools to make a longitudinally extending cut may be provided with an upwardly and forwardly projecting ripper section.
Inventors
- 👤 Neil W Benedict Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:40
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/12; H02G1/1202; H02G1/1204; H02G1/1207; H02G1/1217
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
184 words
A ripper tool for ripping a sleeve formed of lead comprising an elongated body having a longitudinal axis, a shank at one end of said body for connection to a reciprocating hammer, a ripper section on the other end of said body extending outwardly and forwardly relative to said axis, a pair of toes at the forward end of the ripper section, a pointed tooth located centrally between said toes and extending outwardly and forwardly from and between said toes to engage and perforate the sleeve, an upper wall on said tooth, an inner side wall on each of said toes spaced from each other and located above said tooth and defining therebetween a slot through which lead may flow, said tooth having a top wall, curved bottom wall and a pair of vertical side walls extending between said bottom wall to said top wall, each of said tooth side walls being spaced inwardly from its facing inner tooth wall, said slot being at least as twice as wide as said cross-sectional thickness of said tooth to accommodate lead flowing outwardly through said slot.
Claim 2
Dependent Claim
184 words
A ripper tool for ripping a sleeve formed of lead comprising an elongated body having a longitudinal axis, a shank at one end of said body for connection to a reciprocating hammer, a ripper section on the other end of said body extending outwardly and forwardly relative to said axis, a pair of toes at the forward end of the ripper section, a pointed tooth located centrally between said toes and extending outwardly and forwardly from and between said toes to engage and perforate the sleeve, an upper wall on said tooth, an inner side wall on each of said toes spaced from each other and located above said tooth and defining therebetween a slot through which lead may flow, said tooth having a top wall, curved bottom wall and a pair of vertical side walls extending between said bottom wall to said top wall, each of said tooth side walls being spaced inwardly from its facing inner tooth wall, said slot being at least as twice as wide as said cross-sectional thickness of said tooth to accommodate lead flowing outwardly through said slot.
Claim 3
Dependent Claim
50 words
A ripper tool in accordance with claim 1 in which curved surfaces are formed on said toes for engaging said sleeve and for facilitating rocking of the tool body relative to the sleeve to change the depth of penetration of the tooth as said curved surfaces slide along said sleeve.
Claim 4
Dependent Claim
44 words
A ripper tool in accordance with claim 1 in which arcuate cutting edges are formed on walls extending between said tooth and said internal side walls of said toes for cutting bevels on the outer edges of the cut being formed in the sleeve.
Claim 5
Dependent Claim
33 words
A ripper tool in accordance with claim 1 in which a forward, leading wall on said ripping tooth is formed with a concave surface for guiding the flow of lead from the cut.
Claim 6
Dependent Claim
31 words
A ripper tool in accordance with claim 1 in which said ripper section projects upwardly and forwardly from said body and said tool is used to make a longitudinally extending cut.
Claim 7
Dependent Claim
31 words
A ripper tool in accordance with claim 1 in which said ripper section projects downwardly and forwardly from said body and said tool is used to made a circumferentially extending cut.
References Cited (Backward Citations)
US169913A
Cited
US3097429A
Cited
US1418125A
Cited
GB251613A
Cited
US1719449A
Cited
US2199380A
Cited
US3106019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |