US2684094A - Nonslip screw driver and screwhead - Google Patents

Nonslip screw driver and screwhead Download PDF

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Publication number
US2684094A
US2684094A US232761A US23276151A US2684094A US 2684094 A US2684094 A US 2684094A US 232761 A US232761 A US 232761A US 23276151 A US23276151 A US 23276151A US 2684094 A US2684094 A US 2684094A
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US
United States
Prior art keywords
screw
screw driver
slot
driver
head
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US232761A
Inventor
Lissy John
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Individual
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Priority to US232761A priority Critical patent/US2684094A/en
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Publication of US2684094A publication Critical patent/US2684094A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/919—Screw having driving contacts

Definitions

  • This invention relates to a non-slip screw driver and screw head.
  • Fig. 1 is collective and perspective View showing the end of the screw driver and of a screw bolt having a head specially formed to receive the special screw driver.
  • Fig. 2 is transverse sectional view of the screw driver taken on line 22 of Fig. 1.
  • Fig. 3 is a top plan view of the screw head and looking into the slot thereof.
  • Fig. 4 is a vertical elevational View of the screw driver fitted into a screw head.
  • Fig. 5 is a top plan view of a screw head and of the screw driver turned thereinto for grinning action, the view being taken on line 5ii of Fig. 4.
  • Fig. 6 is a transverse se ti nal view taken on the same line as the view of 5 is taken. but with the screw driver twisted out of engagement with the sides of the slot and the undercut areas thereof.
  • FIG. 7 shows a screw driver supporting a screw and held in a position to apply the screw to an under surface.
  • iii re resents the screw bolt havin a screw M with a special slot is cut according to the present invention.
  • This slot iii has the sides thereof beveled away from the center. indicated at is and M, undercut from the center at opposite locations. as indie. d at E5 and it.
  • a screw driver end it is provided on the opposite sides thereof pectively with downwardly and outwardly flared projections I! and i8 adapted to fill respectively the undercut spaces i5 and iii of the walls 13 and M of the slot is in the head H.
  • the screw driver 1! supports and retains a screw on its upper end with the screw driver being held in an inverted position and in order that the screw It can be forced into the under surface of a structure indicated at 2 1.
  • a screw head havin a transverse ton slot defin ng opposed side wall therein, said s ot be n widened. from. its center toward both ends the top face of the screw head. two diagonally opposite per one of the side walls of the slot being disposed.
  • a screw driver of substantially rectangular crosssection and having its faces tapered towards the end of the screw driver, two diagonally opposed portions of the faces at the end portion of the driver having outwardly inclined projections at an angle complementary to that of the undercut portions of the side walls of the slot in the screw head, so that the two diagonally oppositely disposed projections engage the undercut walls of the screw head in operative position.

Description

J y 1954 J. LISSY NONSLIP SCREW DRIVER AND SCREWHEAD Filed June 21, 1951 Patented July 2@, 1%54 ,d i tfi 1 Claim.
This invention relates to a non-slip screw driver and screw head.
It is an object of the present invention to provide a screw having a slot chute in such a manher that upon receiving a specially formed screw driver and turning the screw driver slightly, there is no chance for the screw driver to slip from the screw head and it is locked upon the screw head.
Other objects of the invention are to provide a non-slip screw driver and screw head combination which is of simple construction, inexpensive to manufacture, permits easy insertion of the screw driver into the slot within the head, makes possible the use of a standard. screw driver within the head if the special screw driver is not available at the time, durable and efficient in use.
For other ohiects and for a better understandof the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which:
Fig. 1 is collective and perspective View showing the end of the screw driver and of a screw bolt having a head specially formed to receive the special screw driver.
Fig. 2 is transverse sectional view of the screw driver taken on line 22 of Fig. 1.
Fig. 3 is a top plan view of the screw head and looking into the slot thereof.
Fig. 4 is a vertical elevational View of the screw driver fitted into a screw head.
Fig. 5 is a top plan view of a screw head and of the screw driver turned thereinto for grinning action, the view being taken on line 5ii of Fig. 4.
Fig. 6 is a transverse se ti nal view taken on the same line as the view of 5 is taken. but with the screw driver twisted out of engagement with the sides of the slot and the undercut areas thereof.
7 shows a screw driver supporting a screw and held in a position to apply the screw to an under surface.
Referrin now to the figures. iii re resents the screw bolt havin a screw M with a special slot is cut according to the present invention. This slot iii has the sides thereof beveled away from the center. indicated at is and M, undercut from the center at opposite locations. as indie. d at E5 and it.
A screw driver end it is provided on the opposite sides thereof pectively with downwardly and outwardly flared projections I! and i8 adapted to fill respectively the undercut spaces i5 and iii of the walls 13 and M of the slot is in the head H.
As the screw driver is turned after being put in the slot in the manner illustrated in Fig. 5, this action is effected. It will be seen that it is impossible for the screw driver end to be removed from the slot in the screw from any direction long as it is turned to the position shown in Fig. 5. It cannot slide either to the right or left through the slot nor can it be pulled axially without first being rotated or returned to the position shown in Fig. 6.
While the invention is shown applied to a machine screw in Fig. 1, it will he understood that it can be equally applied to a wood screw, as indicated at IS in Figs. to 7. The same type of slot as defined above is provided in this wood screw.
As shown in Fig. '7, the screw driver 1! supports and retains a screw on its upper end with the screw driver being held in an inverted position and in order that the screw It can be forced into the under surface of a structure indicated at 2 1.
When the non-slip screw driver is inserted into the non-slip screw head and when a slight turn is made to the right with the screw driver, the screw driver tends to wedge itself into the undercut portions of the screw head. This interlocking action of the screw driver with the screw head keeps the screw driver from slipping to the right or to the left of the slot.
While various changes may be made in the detail construction. it shall be understood that such. changes shall be within the spirit and scope of the present invention as defined by the appended claim.
Having thus set forth and disclosed the nature of my invention, what is claimed is:
In combination, a screw head havin a transverse ton slot defin ng opposed side wall therein, said s ot be n widened. from. its center toward both ends the top face of the screw head. two diagonally opposite per one of the side walls of the slot being disposed. in planes extending parto the of the screw the other two diagonally opposite portions of side walls of the slot being undercut from the top face of the screw head to the bottom of the slot, a screw driver of substantially rectangular crosssection and having its faces tapered towards the end of the screw driver, two diagonally opposed portions of the faces at the end portion of the driver having outwardly inclined projections at an angle complementary to that of the undercut portions of the side walls of the slot in the screw head, so that the two diagonally oppositely disposed projections engage the undercut walls of the screw head in operative position.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 132,946 Armstrong Nov. 12, 1872 685,197 Barnes Oct. 22, 1901 1,656,095 Groos Mar. 18, 1913 1,411,242 Faust Mar. 23, 1922 FOREIGN PATENTS lluinher Country Date 10,612 Germany Jan. 31, 1880
US232761A 1951-06-21 1951-06-21 Nonslip screw driver and screwhead Expired - Lifetime US2684094A (en)

Priority Applications (1)

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US232761A US2684094A (en) 1951-06-21 1951-06-21 Nonslip screw driver and screwhead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US232761A US2684094A (en) 1951-06-21 1951-06-21 Nonslip screw driver and screwhead

Publications (1)

Publication Number Publication Date
US2684094A true US2684094A (en) 1954-07-20

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US232761A Expired - Lifetime US2684094A (en) 1951-06-21 1951-06-21 Nonslip screw driver and screwhead

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800936A (en) * 1954-08-30 1957-07-30 Wesloc Screw Inc Cruciform screw driver
US2820972A (en) * 1954-05-24 1958-01-28 Wilbur F Ptak Method of stamping screw threaded fasteners from flat bar stock
US2954719A (en) * 1957-10-24 1960-10-04 Rudolph M Vaughn Asymmetrical screw head slots
DE1156718B (en) * 1956-06-04 1963-10-31 Hans Pribitzer Screwdriver for slotted screws, the slot of which has a dovetail cross-section
US4026338A (en) * 1976-04-26 1977-05-31 Goebel Ronald G Retractor for one-way screw
US4339971A (en) * 1978-12-13 1982-07-20 Zatorre Alfredo E Fastener and driving tool
FR2536478A1 (en) * 1982-11-22 1984-05-25 Lutrat Jacques EXTRACTABLE SCREWS AND SCREWDRIVERS ADAPTABLE NON-RIPANT
US4625598A (en) * 1985-05-10 1986-12-02 Frank Wolfram Positive engagement screw driver tool
FR2631874A1 (en) * 1988-05-19 1989-12-01 Ciumaga Massimo SCREWING DEVICE
US4977800A (en) * 1988-12-30 1990-12-18 Colvin David S Screwdriver blade construction
US5353667A (en) * 1993-04-23 1994-10-11 Wilner David W Combination tool and fastener
US5438895A (en) * 1993-02-10 1995-08-08 Bassell; Marvin Fastener and driving tool
US5461944A (en) * 1986-12-08 1995-10-31 Ciumaga; Massimo Method of making a screwdriver
US5582548A (en) * 1990-04-10 1996-12-10 Czegledi; Imre Method of manufacture of anti-slip fastener
US20030230176A1 (en) * 2002-06-14 2003-12-18 Fuerle Richard D. Undercut screw and matching bit
US20080034930A1 (en) * 2006-08-08 2008-02-14 Landes Ruediger H Non slip screw
US20090145270A1 (en) * 2007-12-05 2009-06-11 Heesch Gary V Torque reducing and stabilizing screwdrivers and slotted threaded fasteners and related methods
US20090165604A1 (en) * 2007-12-31 2009-07-02 Macor Richard J Engaging portion of a screwdriver
WO2009142469A1 (en) * 2008-05-19 2009-11-26 Dauletbayev Nurlan Wood screw and a screw drive for screwing in and off said wood screw
US20100003634A1 (en) * 2006-04-25 2010-01-07 D B Orthodontics Ltd Orthodontic implant device
CN103097061A (en) * 2010-07-16 2013-05-08 雷高费克斯股份公司 Slip-proof clamping system
WO2014146187A1 (en) * 2013-03-20 2014-09-25 Guido Stahl Fastener head and complementary driver
US20140305267A1 (en) * 2013-04-10 2014-10-16 Emile Baroody No-Slip Screwdriver
US8881625B2 (en) 2011-12-05 2014-11-11 Robert Jenkins High speed, high torque screw fasteners and drive systems
USD795036S1 (en) * 2015-09-03 2017-08-22 Proprietary Technologies, Inc. Slotted screwdriver blade tip
CN109700516A (en) * 2019-02-26 2019-05-03 武汉大学 A kind of improved screw and bottle opener preventing screw stripped thread
US10780559B2 (en) 2017-04-25 2020-09-22 William Norton Helical toothed driver and compatible fastener
USD897827S1 (en) 2018-10-04 2020-10-06 Dish Network L.L.C. Fastener head
USD897806S1 (en) 2018-04-30 2020-10-06 William Norton Driver
USD914476S1 (en) * 2018-10-04 2021-03-30 Dish Network L.L.C. Driving bit head for manual and powered screwdrivers
US11192221B2 (en) 2018-10-04 2021-12-07 Dish Network L.L.C. Curved-tip screwdriver and screwdriver bit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10612C (en) * P. SCHNEITLER in Berlin N., Müllerstrafse 179B Innovations in screw heads and associated screwdrivers
US132946A (en) * 1872-11-12 John s
US685197A (en) * 1900-04-10 1901-10-22 Oscar Reuter Screw-driver.
US1056095A (en) * 1913-02-03 1913-03-18 Charles Groos Screw-driver.
US1411242A (en) * 1920-12-11 1922-03-28 Guy W Faust Screw driver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10612C (en) * P. SCHNEITLER in Berlin N., Müllerstrafse 179B Innovations in screw heads and associated screwdrivers
US132946A (en) * 1872-11-12 John s
US685197A (en) * 1900-04-10 1901-10-22 Oscar Reuter Screw-driver.
US1056095A (en) * 1913-02-03 1913-03-18 Charles Groos Screw-driver.
US1411242A (en) * 1920-12-11 1922-03-28 Guy W Faust Screw driver

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820972A (en) * 1954-05-24 1958-01-28 Wilbur F Ptak Method of stamping screw threaded fasteners from flat bar stock
US2800936A (en) * 1954-08-30 1957-07-30 Wesloc Screw Inc Cruciform screw driver
DE1156718B (en) * 1956-06-04 1963-10-31 Hans Pribitzer Screwdriver for slotted screws, the slot of which has a dovetail cross-section
US2954719A (en) * 1957-10-24 1960-10-04 Rudolph M Vaughn Asymmetrical screw head slots
US4026338A (en) * 1976-04-26 1977-05-31 Goebel Ronald G Retractor for one-way screw
US4339971A (en) * 1978-12-13 1982-07-20 Zatorre Alfredo E Fastener and driving tool
FR2536478A1 (en) * 1982-11-22 1984-05-25 Lutrat Jacques EXTRACTABLE SCREWS AND SCREWDRIVERS ADAPTABLE NON-RIPANT
US4538486A (en) * 1982-11-22 1985-09-03 Jacques Lutrat Non-slip screw
US4625598A (en) * 1985-05-10 1986-12-02 Frank Wolfram Positive engagement screw driver tool
US5461944A (en) * 1986-12-08 1995-10-31 Ciumaga; Massimo Method of making a screwdriver
FR2631874A1 (en) * 1988-05-19 1989-12-01 Ciumaga Massimo SCREWING DEVICE
US4977800A (en) * 1988-12-30 1990-12-18 Colvin David S Screwdriver blade construction
US5582548A (en) * 1990-04-10 1996-12-10 Czegledi; Imre Method of manufacture of anti-slip fastener
US5722838A (en) * 1990-04-10 1998-03-03 Czegledi; Imre Fastener system and method of manufacture thereof
US5438895A (en) * 1993-02-10 1995-08-08 Bassell; Marvin Fastener and driving tool
US5353667A (en) * 1993-04-23 1994-10-11 Wilner David W Combination tool and fastener
US7494311B2 (en) * 2002-06-14 2009-02-24 Fuerle Richard D Undercut screw and matching bit
US20030230176A1 (en) * 2002-06-14 2003-12-18 Fuerle Richard D. Undercut screw and matching bit
US20100003634A1 (en) * 2006-04-25 2010-01-07 D B Orthodontics Ltd Orthodontic implant device
US20080034930A1 (en) * 2006-08-08 2008-02-14 Landes Ruediger H Non slip screw
US20090145270A1 (en) * 2007-12-05 2009-06-11 Heesch Gary V Torque reducing and stabilizing screwdrivers and slotted threaded fasteners and related methods
US20090165604A1 (en) * 2007-12-31 2009-07-02 Macor Richard J Engaging portion of a screwdriver
WO2009142469A1 (en) * 2008-05-19 2009-11-26 Dauletbayev Nurlan Wood screw and a screw drive for screwing in and off said wood screw
US20120090435A1 (en) * 2008-05-19 2012-04-19 Nurlan Dauletbayev Screw and screwdriver for screwing and unscrewing the screw
CN103097061A (en) * 2010-07-16 2013-05-08 雷高费克斯股份公司 Slip-proof clamping system
CN103097061B (en) * 2010-07-16 2017-02-22 雷高费克斯股份公司 Slip-proof clamping system
US8881625B2 (en) 2011-12-05 2014-11-11 Robert Jenkins High speed, high torque screw fasteners and drive systems
CN105164432A (en) * 2013-03-20 2015-12-16 盖多·斯特尔 Fastener head and complementary driver
WO2014146187A1 (en) * 2013-03-20 2014-09-25 Guido Stahl Fastener head and complementary driver
US20140305267A1 (en) * 2013-04-10 2014-10-16 Emile Baroody No-Slip Screwdriver
USD795036S1 (en) * 2015-09-03 2017-08-22 Proprietary Technologies, Inc. Slotted screwdriver blade tip
US10780559B2 (en) 2017-04-25 2020-09-22 William Norton Helical toothed driver and compatible fastener
US10926384B2 (en) 2017-04-25 2021-02-23 William Norton Fastener compatible with helical toothed driver
USD897806S1 (en) 2018-04-30 2020-10-06 William Norton Driver
USD897827S1 (en) 2018-10-04 2020-10-06 Dish Network L.L.C. Fastener head
USD914476S1 (en) * 2018-10-04 2021-03-30 Dish Network L.L.C. Driving bit head for manual and powered screwdrivers
US11192221B2 (en) 2018-10-04 2021-12-07 Dish Network L.L.C. Curved-tip screwdriver and screwdriver bit
CN109700516A (en) * 2019-02-26 2019-05-03 武汉大学 A kind of improved screw and bottle opener preventing screw stripped thread

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