US2836210A - Screwdriver - Google Patents

Screwdriver Download PDF

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Publication number
US2836210A
US2836210A US615541A US61554156A US2836210A US 2836210 A US2836210 A US 2836210A US 615541 A US615541 A US 615541A US 61554156 A US61554156 A US 61554156A US 2836210 A US2836210 A US 2836210A
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United States
Prior art keywords
blade
shank
screwdriver
handle
end
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Expired - Lifetime
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US615541A
Inventor
Garofalo Carmine
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Garofalo Carmine
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Priority to US615541A priority Critical patent/US2836210A/en
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Publication of US2836210A publication Critical patent/US2836210A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25GHANDLES FOR HAND IMPLEMENTS
    • B25G1/00Handle constructions
    • B25G1/005Handle constructions for screwdrivers, wrenches or spanners with additional levers, e.g. for increasing torque

Description

May 27, 1958 c, GARQFALO 2,836,210

SCREWDRIVER Filed Oct. 12, 1956 CA El? [/YE Ga EOFHLO United States Patent SCREWDRIVER Carmine Garofalo, Port Arthur, Ontario, Canada Application October 12, 1956, Serial No. 615,541

1 Claim. (Cl. 145-50) My invention relates to new and useful improvements in screwdrivers, the principal object and essence of my invention being to provide a device of the character herewithin described which is an addition to an existing screwdriver not only giving the choice of two blade sizes, but also permitting one blade to be extended at right angles or at any other angle desired and leverage applied to the other blade through the angulation formed.

A further object of my invention is to provide a device of the character herewithin described in which the further blade is adapted to be nested within the handle of the screwdriver.

With the foregoing objects in view, and such other objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, my invention consists essentially in the arrangement and construction of parts all as hereinafter more particularly described, reference being had to the accompanying drawings in which:

Figure l is a front elevation of my device with the additional blade shown nested within the handle.

Figure 2 is a view similar to Figure 1, but with the blade fully extended.

Figure 3 is an elevation at right angles to Figures 1 and 2, but with the blade extended at 90 to permit torque to be applied to either blade as desired.

In the drawings like characters of reference indicate corresponding parts in the different figures.

It is often necessary to provide extra torque to a screwdriver in addition to the power being supplied through the handle and many methods are used to supply this torque such as wrenches applied to the flattened end of the screwdriver. However, these are not satisfactory as slippage can occur.

I overcome these disadvantages by not only providing a screwdriver having the choice of two blades, but furthermore permitting either blade to be used conventionally or with the necessary degree of torque required.

Proceeding, therefore, to describe my invention in detail, it will be seen upon reference to the accompanying drawings that I have illustrated a screwdriver having a shank 1 and a screwdriver blade 2 formed upon the lower ends thereof. A handle 3 is formed on the opposite end 4 of the shank 1, said handle being open and consisting of a pair of arms 5 diverging upwardly from the upper end of the shank 1. These arms continue parallel and then terminate at the upper ends 6 thereof by the provision of inturned ends 7 thus forming a cross bar or cross member at the junction therebetween.

I provide a further shank 8 having a bearing hub 9 formed upon the lower end 10 thereof, said bearing hub adapted to engage around the aforementioned inturned ends 7 and to be pivoted thereupon.

A blade 11 is formed upon the opposite end 12 of the shank 8, said blade preferably being at right angles to the blade 2.

in operation, Figure 1 shows the additional shank 8 and blade 11 in the nested position between the arms 5 of the handle 3 whereupon the blade 2 can be used in the conventional manner.

Alternatively, the shank 8 and blade 11 can be extended as shown in Figure 2 and this blade can be used in preference to blade 2.

In any event, if either the blades 2 or 11 is required to be used with additional torque, shank 8 can be extended at any angle as for example, a right angle illustrated in Figure 3, whereupon either blade can be engaged within a screw head and the opposite shank used to supply torque to the screw.

It will also be appreciated that the shank 8 can be extended beyond the right angle thus enabling the operator to reach screws which cannot be reached by a straight screwdriver.

It should also be appreciated that the bearing hub 9 engaging over the cross shaft 7 should have suificient frictional engagement one with the other to permit the shank to remain in the position that it is placed with relation to the shank 1.

Since various modifications can be made in my invention as hereinabove described, and many apparently widely different embodiments of same made within the spirit and scope of the claim without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.

What is claimed as my invention is:

A screwdriver including a shank, an open handle extending from one end of said shank, and a blade formed on the other end of said shank; a further shank pivotally secured by one end thereof to said handle, said further shank adjustable to be nested within said handle and extended therefrom as desired, said open handle comprising a pair of arms diverging upwardly from said shank, the upper ends of said arms being inturned towards each other to form a transverse cross bar, and a bearing hub formed on said one end of said further shank around said ends of the arms forming the cross bar.

References Cited in the file of this patent UNITED STATES PATENTS 228,660 McDonald June 8, 1880 236,692 Peakman Jan. 18, 1881 699,773 Stunp May 13, 1902 903,549 Dodd Nov. 10, 1908 1,243,667 Ard Oct. 16, 1917 2,563,126 Marogg Aug. 7, 1951 2,726,695 Malm Dec. 13, 1955 FOREIGN PATENTS 579,494 France Oct. 17, 1924

US615541A 1956-10-12 1956-10-12 Screwdriver Expired - Lifetime US2836210A (en)

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US615541A US2836210A (en) 1956-10-12 1956-10-12 Screwdriver

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US615541A US2836210A (en) 1956-10-12 1956-10-12 Screwdriver

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US2836210A true US2836210A (en) 1958-05-27

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US615541A Expired - Lifetime US2836210A (en) 1956-10-12 1956-10-12 Screwdriver

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848197A (en) * 1987-09-01 1989-07-18 Dean H. Wall Multiple bit handtool
EP0895832A2 (en) * 1997-08-07 1999-02-10 Scambia Industrial Developments Aktiengesellschaft A device for rotating at least one rotatable element and a method for manufacturing such a device
US20090183607A1 (en) * 2008-01-17 2009-07-23 Wagic, Inc., A California Corporation Tool holder
US20110000025A1 (en) * 2008-01-17 2011-01-06 Wagic, Inc. Biaxial foldout tool with multiple tools on a side and a rotational stop
US20110000024A1 (en) * 2008-01-17 2011-01-06 Wagic, Inc. Radial foldout tool with multiple types of tools and bit storage
US20110079113A1 (en) * 2009-10-05 2011-04-07 Wagic, Inc. Dual purpose flip-out and t handle
US20110079115A1 (en) * 2009-10-05 2011-04-07 Wagic, Inc. Handled ratcheting tool with a flip out handle
US7942082B1 (en) * 2010-11-15 2011-05-17 Jones James M Crankable hand wrench
US8033200B2 (en) 2008-01-17 2011-10-11 Wagic, Inc. Universal ratcheting tool
USD677552S1 (en) 2008-01-17 2013-03-12 Wagic, Inc. Radial foldout tool with multiple types of tools and bit storage
USD708036S1 (en) 2008-01-17 2014-07-01 Wagic, Inc. Biaxial foldout tool
US8925429B2 (en) 2008-01-17 2015-01-06 Wagic, Inc. Radial foldout tool
USD723276S1 (en) 2013-03-15 2015-03-03 Wagic, Inc. Post lock tool holder for L-shaped wrenches
US9193062B2 (en) 2013-03-15 2015-11-24 Wagic, Inc. Post lock tool holder for L-shaped wrenches
US9193058B2 (en) 2012-05-15 2015-11-24 Wagic, Inc. Adjustable tool handle for holding a tool during use
US9289894B2 (en) 2007-05-10 2016-03-22 Wagic, Inc. Hand tool with multiple bit storage and a method for using the same
US9387579B2 (en) 2012-05-15 2016-07-12 Wagic, Inc. Adjustable tool handle for holding a tool during use
US9545707B2 (en) 2008-01-17 2017-01-17 Wagic, Inc. Tool handle for holding multiple tools of different sizes during use

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US228660A (en) * 1880-06-08 Duplex toilet implement
US236692A (en) * 1881-01-18 peakman
US699773A (en) * 1901-07-22 1902-05-13 Ernest N Foote Ratchet screw-driver.
US903549A (en) * 1908-02-17 1908-11-10 Charles V Dodd Screw-driver.
US1243667A (en) * 1917-02-26 1917-10-16 H R Van Deventer Screw-driver.
FR579494A (en) * 1924-03-21 1924-10-17 Screwdriver articulated lever
US2563126A (en) * 1947-02-18 1951-08-07 Marogg Richard Folding screw driver
US2726695A (en) * 1951-06-22 1955-12-13 Malm Henry Multiple collapsible screw driver

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US228660A (en) * 1880-06-08 Duplex toilet implement
US236692A (en) * 1881-01-18 peakman
US699773A (en) * 1901-07-22 1902-05-13 Ernest N Foote Ratchet screw-driver.
US903549A (en) * 1908-02-17 1908-11-10 Charles V Dodd Screw-driver.
US1243667A (en) * 1917-02-26 1917-10-16 H R Van Deventer Screw-driver.
FR579494A (en) * 1924-03-21 1924-10-17 Screwdriver articulated lever
US2563126A (en) * 1947-02-18 1951-08-07 Marogg Richard Folding screw driver
US2726695A (en) * 1951-06-22 1955-12-13 Malm Henry Multiple collapsible screw driver

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848197A (en) * 1987-09-01 1989-07-18 Dean H. Wall Multiple bit handtool
EP0895832A2 (en) * 1997-08-07 1999-02-10 Scambia Industrial Developments Aktiengesellschaft A device for rotating at least one rotatable element and a method for manufacturing such a device
EP0895832A3 (en) * 1997-08-07 2000-05-31 Scambia Industrial Developments Aktiengesellschaft A device for rotating at least one rotatable element and a method for manufacturing such a device
US6125725A (en) * 1997-08-07 2000-10-03 Scambia Industrial Developments Aktiengesellschaft Device for rotating at least one rotatable element
US9289894B2 (en) 2007-05-10 2016-03-22 Wagic, Inc. Hand tool with multiple bit storage and a method for using the same
US8336428B2 (en) 2008-01-17 2012-12-25 Wagic, Inc. Universal ratcheting tool
US20110000024A1 (en) * 2008-01-17 2011-01-06 Wagic, Inc. Radial foldout tool with multiple types of tools and bit storage
US10322503B2 (en) 2008-01-17 2019-06-18 Wagic, Inc. Tool handle for holding multiple tools of different sizes during use
US9701005B2 (en) 2008-01-17 2017-07-11 Wagic, Inc. Biaxial foldout tool with multiple tools on a side and a rotational stop
US9604349B2 (en) 2008-01-17 2017-03-28 Wagic, Inc. Universal ratcheting tool
US8033200B2 (en) 2008-01-17 2011-10-11 Wagic, Inc. Universal ratcheting tool
US20110000025A1 (en) * 2008-01-17 2011-01-06 Wagic, Inc. Biaxial foldout tool with multiple tools on a side and a rotational stop
US8359954B2 (en) 2008-01-17 2013-01-29 Wagic, Inc. Radial foldout tool with multiple types of tools and bit storage
USD677552S1 (en) 2008-01-17 2013-03-12 Wagic, Inc. Radial foldout tool with multiple types of tools and bit storage
US8468916B2 (en) 2008-01-17 2013-06-25 Wagic, Inc. Biaxial foldout tool with multiple tools on a side and a rotational stop
US8499667B2 (en) 2008-01-17 2013-08-06 WAGIC, Inc Tool holder
US9545707B2 (en) 2008-01-17 2017-01-17 Wagic, Inc. Tool handle for holding multiple tools of different sizes during use
US8640574B2 (en) 2008-01-17 2014-02-04 Wagic, Inc. Radial foldout tool with multiple types of tools and bit storage
US20090183607A1 (en) * 2008-01-17 2009-07-23 Wagic, Inc., A California Corporation Tool holder
USD708036S1 (en) 2008-01-17 2014-07-01 Wagic, Inc. Biaxial foldout tool
US8925429B2 (en) 2008-01-17 2015-01-06 Wagic, Inc. Radial foldout tool
US9505123B2 (en) 2008-01-17 2016-11-29 Wagic, Inc. Tool holder
US8757033B2 (en) 2008-01-17 2014-06-24 Wagic, Inc. Universal ratcheting tool
US10343273B2 (en) 2009-10-05 2019-07-09 Wagic, Inc. Dual purpose flip-out and T handle
US20110079113A1 (en) * 2009-10-05 2011-04-07 Wagic, Inc. Dual purpose flip-out and t handle
US9120208B2 (en) 2009-10-05 2015-09-01 WAGIC, Inc Handled ratcheting tool with a flip out handle
US20110079115A1 (en) * 2009-10-05 2011-04-07 Wagic, Inc. Handled ratcheting tool with a flip out handle
US9676083B2 (en) 2009-10-05 2017-06-13 Wagic, Inc. Dual purpose flip-out and T handle
US8621963B2 (en) * 2009-10-05 2014-01-07 Wagic, Inc. Dual purpose flip-out and T handle
US7942082B1 (en) * 2010-11-15 2011-05-17 Jones James M Crankable hand wrench
US9387579B2 (en) 2012-05-15 2016-07-12 Wagic, Inc. Adjustable tool handle for holding a tool during use
US10207400B2 (en) 2012-05-15 2019-02-19 Wagic, Inc. Adjustable tool handle for holding a tool during use
US9193058B2 (en) 2012-05-15 2015-11-24 Wagic, Inc. Adjustable tool handle for holding a tool during use
USD723276S1 (en) 2013-03-15 2015-03-03 Wagic, Inc. Post lock tool holder for L-shaped wrenches
US10239197B2 (en) 2013-03-15 2019-03-26 Wagic, Inc. Post lock tool holder for L-shaped wrenches
US9193062B2 (en) 2013-03-15 2015-11-24 Wagic, Inc. Post lock tool holder for L-shaped wrenches

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