Patent US3711008A successfully refreshed from Google Patents.
US3711008A
Expired / Lapsed
US
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Impact tools
Assignee: Individual
•
Filing: 1970-08-31
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Granted: 1973-01-16
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Expires: 1990-08-31
Abstract
Abstract Manual and pneumatically operated impact tools for driving fasteners into concrete through the utilization of the kinetic energy of a hammer impacting a driver. The tools are adapted to insure the perpendicularity of the fasteners and to drive the fasteners in close proximity to a wall or vertical surface.
Inventors
- 👤 P Clifford
- 👤 H Haytayan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:35
CPC Classifications
B; B27; B27F; B27F7/00; B27F7/17; B27F7/30; B27F7/34; B25; B25C; B25C1/00; B25C1/02; B25C1/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
166 words
An impact tool for driving fasteners through a workpiece into masonry surfaces or the like including: a driver housing having means to locate a workpiece in a position to receive a fastener above the workpiece and means to align the impact tool so that a fastener in the positioning station is substantially perpendicular to the surface into which the fastener is to be driven, including four leg members extending downward from the driver housing in a position to straddle the workpiece and a fifth leg member remote from the driver housing to provide stability; a driver positioned in the driver housing immediately above the fastener positioning station and movable downward through the fastener positioning station; means to impact the driver with a velocity sufficient to force the driver downward through the positioning station displacing a fastener in the positioning station; and fastener supply means adapted to position and hold a fastener in the pOsitioning station in the driver housing for each operation of the impact tool.
Claim 2
Dependent Claim
166 words
An impact tool for driving fasteners through a workpiece into masonry surfaces or the like including: a driver housing having means to locate a workpiece in a position to receive a fastener above the workpiece and means to align the impact tool so that a fastener in the positioning station is substantially perpendicular to the surface into which the fastener is to be driven, including four leg members extending downward from the driver housing in a position to straddle the workpiece and a fifth leg member remote from the driver housing to provide stability; a driver positioned in the driver housing immediately above the fastener positioning station and movable downward through the fastener positioning station; means to impact the driver with a velocity sufficient to force the driver downward through the positioning station displacing a fastener in the positioning station; and fastener supply means adapted to position and hold a fastener in the pOsitioning station in the driver housing for each operation of the impact tool.
Claim 3
Dependent Claim
22 words
The impact tool of claim 1 wherein the fifth leg member is attached to and extending downward from the fastener supply means.
References Cited (Backward Citations)
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Cited
US3060440A
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US3035268A
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US3060441A
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US3498517A
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US3570738A
Cited
US3595460A
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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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |