Implements or apparatus for applying pushing or pulling force – Nail extractor type – Single throw lever
Reexamination Certificate
2000-07-10
2001-10-30
Hail, III, Joseph J. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Nail extractor type
Single throw lever
C254S021000, C254S024000
Reexamination Certificate
active
06308934
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates generally to a tool for use in roofing, and more particularly, is directed to a pry bar with a built in hammer and nail remover for use in roofing.
It is known that roofs are covered with at least one layer of shingles nailed onto the roofs. The shingles are covered at edges of the roof by metal flashing. Flashing is typically nailed into place, partially covering the edges of the shingles, and may be caulked by tar or other sealing materials. When applying a new layer of shingles on an existing roof, either by covering an existing layer of shingles or by removing all existing layers of shingles and then replacing the same by the new layer of shingles, it is necessary to lift up the flashing at the edges of the roof in order to remove the shingles beneath the flashing and insert the new layer of shingles below the flashing, or merely to add the new layer of shingles on the existing layer and below the flashing. After the new layer of shingles is added below the flashing, the flashing is once again nailed down and sealed.
However, this operation of lifting the flashing becomes difficult, and in fact, may comprise up to one-half or more of the time necessary to install a new roof. Specifically, because the flashing is sealed by tar or the like, and also nailed down at the edge of the roof, it has generally been necessary to use a hammer to impact a chisel, pry bar or like instrument in order to hammer the chisel under the flashing, so as to raise the flashing up. This, however, requires two separate instruments. In performing the operation, the hammer must periodically be replaced in a holder on the roofer's belt or placed down on the roof, in order to use the pry bar to pry up the flashing. This operation becomes burdensome when performed numerous times. Also, if placed on the roof, there is the possibility that the hammer can slide off the roof.
Various devices are known which act as impact hammers along with chisel like ends. Examples of such devices are disclosed in U.S. Design Pat. No. 272,712 to Allen; and U.S. Pat. No. 103,330 to Heusser and U.S. Pat. No. 3,568,657 to Gue. There are also devices that use pry sections on both ends of a pry bar, without a slide hammer. Examples of such devices are disclosed in U.S. Design Pat. No. 136,557 to Scown; and U.S. Pat. Nos. 3,680,834 to Holloway; U.S. Pat. No. 5,577,711 to Shine; and U.S. Pat. No. 5,695,171 to Shine. However, there are no known devices that use pry sections on both ends along with a slide hammer, so that a single tool is provided with a slide hammer with different pry sections.
In addition, although V-shaped notches are known at the side edge of a pry bar, for example, from U.S. Pat. No. 5,695,171 to Shine and U.S. Pat. No. 5,577,711 to Shine, the side notches are not near the front edges, which makes it impossible to remove a nail positioned in a corner near a wall. The same applies to nail retrieval notches, such as that disclosed in U.S. Pat. No. 870,672.
OBJECTS AND SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a pry bar with a built in hammer and nail remover for use in roofing that overcomes the problems with the aforementioned prior art.
It is another object of the present invention to provide a pry bar with a built in hammer and nail remover for use in roofing, in which the pry bar and hammer functions are provided in a single tool.
It is still another object of the present invention to provide a pry bar with a built in hammer and nail remover for use in roofing in which a slide hammer functions in place of a separate hammer.
It is yet another object of the present invention to provide a pry bar with a built in hammer and nail remover for use in roofing that has a built in entrapment section for removing and retrieving hard to reach nails.
It is a further object of the present invention to provide a pry bar with a built in hammer and nail remover for use in roofing that is lightweight and durable, and easy and economical to manufacture and use.
In accordance with an aspect of the present invention, a pry bar with a built in hammer includes a slide bar including an elongated linear section, a first pry section at a first end of the elongated linear section and angled relative thereto, the first pry section including a front edge with a notch therein, and a second pry section at a second end of the elongated linear section and angled relative thereto, the second pry section including a front edge with a notch therein; a first stop fixed to the elongated linear section adjacent the first pry section; and a slide hammer slidably mounted on the elongated linear section in order to impact against the first stop.
The first pry section forms an obtuse angle relative to the elongated linear section, and the second pry section forms a right angle relative to the elongated linear section. Each of the first and second pry sections tapers in thickness toward the front edges thereof. Further, each notch has a V-shape.
Also, the elongated linear section has an I-beam cross-section.
A second stop is fixed to the elongated linear section adjacent the second pry section.
In accordance with another aspect of the present invention, a pry bar with a built in hammer includes a slide bar including an elongated linear section, and a first pry section at a first end of the elongated linear section and angled relative thereto, the first pry section including a front edge with a first notch therein, a side edge which meets the front edge at a corner, and a second notch at the side edge immediately adjacent the corner; a first stop fixed to the elongated linear section adjacent the first pry section; a second stop fixed adjacent an opposite end of the elongated linear section; and a slide hammer slidably mounted on the elongated linear section between the first and second stops in order to impact against the first stop.
Also, the first pry section tapers in thickness toward the side edge thereof.
There is also a nail entrapment notch in the side edge which has a polygonal shape.
In accordance with still another aspect of the present invention, a pry bar with a built in hammer includes a slide bar including an elongated linear section, a first pry section at a first end of the elongated linear section and angled relative thereto, the first pry section including a front edge with a first notch therein, a side edge which meets the front edge at a corner, a second notch at the side edge immediately adjacent the corner, and a nail entrapment notch in the side edge, and a second pry section at a second end of the elongated linear section and angled relative thereto, the second pry section including a front edge with a notch therein; a first stop fixed to the elongated linear section adjacent the first pry section; a second stop fixed adjacent to the elongated linear section adjacent the second pry section; and a slide hammer slidably mounted on the elongated linear section between the first and second stops in order to impact against the first stop.
The above and other objects, features and advantages of the invention will become readily apparent from the following detailed description thereof which is to be read in connection with the accompanying drawings.
REFERENCES:
patent: 103330 (1870-05-01), Heusser
patent: D. 136557 (1943-10-01), Scown
patent: D. 272712 (1984-02-01), Allen
patent: 870672 (1907-11-01), Frink et al.
patent: 1135105 (1915-04-01), Glafke
patent: 1467914 (1923-09-01), Balcom
patent: 1709240 (1929-04-01), Wass
patent: 2103008 (1937-12-01), Kinast
patent: 2325227 (1943-07-01), Chaddock
patent: 3029502 (1962-04-01), Middaugh
patent: 3169010 (1965-02-01), Crawford, Jr.
patent: 3568657 (1971-03-01), Gue
patent: 3680834 (1972-08-01), Holloway
patent: 4182390 (1980-01-01), Renner
patent: 4464819 (1984-08-01), Steck et al.
patent: 4991892 (1991-02-01), Gordon et al.
patent: 5010791 (1991-04-01), Williams
patent: 5109739 (1992-05-01), Hull et al.
patent: 5322264 (1994-06-01), Giambro
patent: 5577711 (1996-11-01), Shine
p
Goldberg Richard M.
Hail III Joseph J.
Wilson Lee
LandOfFree
Pry bar with built in hammer and nail remover does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pry bar with built in hammer and nail remover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pry bar with built in hammer and nail remover will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2552548