US1447564A - Lock housing for screws or bolts - Google Patents

Lock housing for screws or bolts Download PDF

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Publication number
US1447564A
US1447564A US514362A US51436221A US1447564A US 1447564 A US1447564 A US 1447564A US 514362 A US514362 A US 514362A US 51436221 A US51436221 A US 51436221A US 1447564 A US1447564 A US 1447564A
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nut
head
housing
key
bolts
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US514362A
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Olof A Norlund
Oehrli Frank
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    • 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
    • F16B23/0061—Specially shaped nuts or heads of bolts or screws for rotations by a tool with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction
    • 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
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
    • 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
    • Y10S411/91—Antitamper means
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5982—Accessories
    • Y10T70/5987—Spare or mounted wheel or tire
    • Y10T70/5991—Tire or rim only

Definitions

  • This invention relates to lock housings for screws and bolts.
  • the object is to provide a metallic housing of strength and durability for'protecting the heads of bolts or screws or nuts and preventing their removal by any one not provided with the proper key for the purpose, the said housing preventing the application of an ordinary-wrench or other tool.
  • Another object is to provide a device of this character wherein the head of the bolt or screw or the nut, as the case may be, serves 'to hold the housing in place, with the open end of the housing in projecting relation thereto, and permitting only the introduction of the key which is provided with interfitting parts for coaction with similar parts of the bolt head or nut, the said interfitting features of the device being capable of wide variation so that the danger of one device being operable by the key in possession ofanothe-r party is reduced'to a minimum.
  • Fig. 2 is anenlarged detail vertical section through the lower portion of the holder having the improved housing mounted thereon and illustrating the manner of engaging the rim of the spare tire.
  • Fig. 8 is a similar view of the removable operating key.
  • Fig. 4 is a similar view of the engaged by bolt-head.
  • Fig. is a displayed view, in perspective, of the parts of the device, partly in section.
  • Fig. 6 is a transverse sectional view taken on the line 66 of Fig. 4.
  • the improved lock housing has been illustrated in connection with a holder for spare tires for automobiles which'are usually placed at the back of a machine, and has means for supporting and displaying tags, etc., it is to beunderstood that the invention may be psed to equal advantage elsewhere to prevent the unauthorized removal of a screw or bolt having a head shaped for the rece tion of a wrench or a nut corresponding y formed.
  • the invention comprises three parts or members including a specially formed bolt or screw head or nut therefor, an open-ended housing or sleeve having an inwardly-directed flange at one end for engagement with the head or nut, and a removable, openparts being the key to unscrew the nut or ended, tubular key adapted to slide into the I housing and to surround the head or nut and having interfitting parts to coact with interfitting parts of the head or nut to forcibly turn the latter to tighten or loosen the same, the outer end of .the removable key being provided with a polygonal exterior to be engaged by an ordinary wrench beyond the open end of the housing, to provide for the necessary pressure to accomplish such turning action.
  • the holder usually employs a downwardly-extending arm D reaching to the lowermost point of the tire and provides, at that point, a rear abutment E for the rim of the wheel to bear against and forming a part of an enlargement F coacting with a clamping finger or, plate G, which is adapted to be held by a bolt H threaded into the enlargement F, and usually having an ordinar nut applied to the outer threaded end to ind the lower end of said finger or plate in clamping relation to the outer edge of the tire rim.
  • the nut 1 in the present instance, has lts bore threaded to fit the exposed end of the bolt H, and is'provided, at its inner face, with a reduced, cylindrical extension 2, thus providing an annular channel 3 for a purpose to be explained.
  • the outer or front end of the nut 1 has its marginal corner rounded as at ,4, thus preventing any attempt to turn the nut in either direction by drifting in a well-known manner, the enlarged portion of the nut, or that having the greatest diameter, being perfectly round as well as the inturned flange the extended part 2.
  • a plurality of longitudinally-disposed grooves 5 are formed in the said enlarged portion and extend from the front rounded corner thereof to the annular channel 3 and while, in the present instance, only two of said grooves have been shown in a certain spaced relation to each other, it is to be understood that more than two of such grooves riphery of the nut, and that they may be equally spaced apart if desired, or such spacing may be unequal.
  • a guard sleeve or housing '6 preferably formed by stamping some suitable gage of sheet steel into shape, is adapted to be held by the nut'l, the said sleeve being open at its front end and having, at its rear end, an inwardly-directed flange 7 whose inner wall is adapted to fit freely over the extension 2 of the nut, ⁇ the sairllkbextension being substantially equal in le th to the thickness of the sleeve, so that when the nut is turned p tightly against the outer face of the clampfn plate or finger G, the sleeve 6 is also clampedinto place in surrounding relation to the nut.
  • the internal diameter of the sleeve 6 is considerably greater than the outer diameter of the enlarged portion of the nut, and provides ample space for the introduction of the open, inner socket end 8 of a tubular key 9, preferably formed of metal similar to the sleeve 6, and having an internal shoulder 10 and the outer or front portion of the bore 11 of somewhat smaller diameter than the socket 8.
  • the front marginal edge of the sleeve is preferably rounded to facilitate the introduction of the peripheral wall of the socket, whose edge is also preferably rounded for the same purpose, and the key may be employed around the pe has its outer end formed or pressed into an exterior polygonal head 12 for the application of an ordinary wrench for a purpose to be explained.
  • a wrench may be applied to the polygonal head 12 and the nut removed from the bolt H or applied thereto, as the case'may be.
  • the improved housing In applying the improved housing, the latter may be first applied to the exposed end of the bolt H as shown in Fig. 5, when the nut 1, after being seated in the socket end of the key 9, may be applied to the end I of the bolt and by the use of a wrench, the
  • a lock for the circular head of a securing element comprising a tubular sleeve open at one end and having an inturned flange at the other end and of greater internal diameter than the diameter of said head, the said head having an annular channel at the inner end for the reception of said flange of the sleeve to clamp the latter in place, and that portion of the head beyond the channel being provided with a plurality of longitudinal grooves spaced apart and extending from the front face thereof to the annular channel, and a removable, tubular key having a III polygonal head at one end and an opening inwardly directed longitudinal ribs to fit the grooves of the head to turn the same k when a wrench is applied to the polygonal head which projects from the open end of the sleeve, said sleeve being extended sulficiently beyond the head of the securing element and cooperating with the rounded head to prevent unauthorized manipulation of OLOF A. NORLUN D. FRANK OEHRLI.

Description

ATTO R N Filed Nov. 10 1921 Mar. 6, 1923.
' O A NORLUND ET AL LOCK HOUSING FOR SCREWS OR BOLTS WITNESS E Patented Mar. 6, ll 92.3.
an onion LOCK HOU SING FOR SCREWS OR BOLTS.-
Application filed November 10, 1921. Serial No. 514,362.
To all whom it mwgg concern:
Be it known that we, OLor A. NoRLUND and FRANK OEHRLI, citizens of the United States, residing at Williamsport, in the county of Lycoming and State of Pennsylvania, have invented a new and useful Lock Housing for Screws and Bolts, of which the following is a specification.
This invention relates to lock housings for screws and bolts.
The object is to provide a metallic housing of strength and durability for'protecting the heads of bolts or screws or nuts and preventing their removal by any one not provided with the proper key for the purpose, the said housing preventing the application of an ordinary-wrench or other tool.
Another object is to provide a device of this character wherein the head of the bolt or screw or the nut, as the case may be, serves 'to hold the housing in place, with the open end of the housing in projecting relation thereto, and permitting only the introduction of the key which is provided with interfitting parts for coaction with similar parts of the bolt head or nut, the said interfitting features of the device being capable of wide variation so that the danger of one device being operable by the key in possession ofanothe-r party is reduced'to a minimum.
A full and complete understanding of the invention may be obtained from a consideration of the following detailed description, taken in connection with the accompanying drawing forminga part of this specification; it being understood that while the drawing shows a practical form of the invention, the latter is not confined to strict conformity therewith, but may be changed or modified, so long as such changes or modifications mark no material departure from the salient features of the invention, as specifically pointed out in the appended claim.
In the drawing, in which similar reference characters designate corresponding par s throughout the several figures s Fig. 1 is? an elevation'of a portion of' a spare tire for automobiles, held by any suitable form, of holder and showing the improved housing in connectlon with the latter.
Fig. 2 is anenlarged detail vertical section through the lower portion of the holder having the improved housing mounted thereon and illustrating the manner of engaging the rim of the spare tire.
Fig. 8 is a similar view of the removable operating key.
Fig. 4 is a similar view of the engaged by bolt-head.
Fig. is a displayed view, in perspective, of the parts of the device, partly in section.
Fig. 6 is a transverse sectional view taken on the line 66 of Fig. 4.
While the improved lock housing has been illustrated in connection with a holder for spare tires for automobiles which'are usually placed at the back of a machine, and has means for supporting and displaying tags, etc., it is to beunderstood that the invention may be psed to equal advantage elsewhere to prevent the unauthorized removal of a screw or bolt having a head shaped for the rece tion of a wrench or a nut corresponding y formed.
The invention comprises three parts or members including a specially formed bolt or screw head or nut therefor, an open-ended housing or sleeve having an inwardly-directed flange at one end for engagement with the head or nut, and a removable, openparts being the key to unscrew the nut or ended, tubular key adapted to slide into the I housing and to surround the head or nut and having interfitting parts to coact with interfitting parts of the head or nut to forcibly turn the latter to tighten or loosen the same, the outer end of .the removable key being provided with a polygonal exterior to be engaged by an ordinary wrench beyond the open end of the housing, to provide for the necessary pressure to accomplish such turning action. When-the tightening or loosening has been accomplished, it is only necessary to withdraw the key from the housing, when-the head or nut is effectively guarded from tampering by a Wrench 01' other tool, as the head or nut is so shaped as to prevent the use of a chisel, screw-driver or drift punch to turn the same by hammering or driving.
In Fig. l of the drawing, there is illustrated a portion of a spare tire A having the usual rim B and held in any customary manner in a holder C, all of which forms no part of the invention. The holder usually employs a downwardly-extending arm D reaching to the lowermost point of the tire and provides, at that point, a rear abutment E for the rim of the wheel to bear against and forming a part of an enlargement F coacting with a clamping finger or, plate G, which is adapted to be held by a bolt H threaded into the enlargement F, and usually having an ordinar nut applied to the outer threaded end to ind the lower end of said finger or plate in clamping relation to the outer edge of the tire rim.
The nut 1, in the present instance, has lts bore threaded to fit the exposed end of the bolt H, and is'provided, at its inner face, with a reduced, cylindrical extension 2, thus providing an annular channel 3 for a purpose to be explained. The outer or front end of the nut 1 has its marginal corner rounded as at ,4, thus preventing any attempt to turn the nut in either direction by drifting in a well-known manner, the enlarged portion of the nut, or that having the greatest diameter, being perfectly round as well as the inturned flange the extended part 2.
A plurality of longitudinally-disposed grooves 5 are formed in the said enlarged portion and extend from the front rounded corner thereof to the annular channel 3 and while, in the present instance, only two of said grooves have been shown in a certain spaced relation to each other, it is to be understood that more than two of such grooves riphery of the nut, and that they may be equally spaced apart if desired, or such spacing may be unequal.
A guard sleeve or housing '6 preferably formed by stamping some suitable gage of sheet steel into shape, is adapted to be held by the nut'l, the said sleeve being open at its front end and having, at its rear end, an inwardly-directed flange 7 whose inner wall is adapted to fit freely over the extension 2 of the nut, \the sairllkbextension being substantially equal in le th to the thickness of the sleeve, so that when the nut is turned p tightly against the outer face of the clampfn plate or finger G, the sleeve 6 is also clampedinto place in surrounding relation to the nut.
The internal diameter of the sleeve 6 is considerably greater than the outer diameter of the enlarged portion of the nut, and provides ample space for the introduction of the open, inner socket end 8 of a tubular key 9, preferably formed of metal similar to the sleeve 6, and having an internal shoulder 10 and the outer or front portion of the bore 11 of somewhat smaller diameter than the socket 8. The front marginal edge of the sleeve is preferably rounded to facilitate the introduction of the peripheral wall of the socket, whose edge is also preferably rounded for the same purpose, and the key may be employed around the pe has its outer end formed or pressed into an exterior polygonal head 12 for the application of an ordinary wrench for a purpose to be explained.
A series f longitudinal grooves 13, formed by pressing the metal inwardly, are
provided at the inner, socket end of the key,
abuts against the inner wall of the flange 7 of the housing, whereupon a wrench may be applied to the polygonal head 12 and the nut removed from the bolt H or applied thereto, as the case'may be.
In applying the improved housing, the latter may be first applied to the exposed end of the bolt H as shown in Fig. 5, when the nut 1, after being seated in the socket end of the key 9, may be applied to the end I of the bolt and by the use of a wrench, the
desired tension may be obtained.
From the foregoing, it willbe seen that a simple, easily operated and cheaply manufactured housing for the heads of securing elements, such as bolt heads, screw heads or nuts has been provided, which will effectively preventthe surreptitious removal of nuts, from spare tire holders, or from similar places, and that by reason of the interlocking features provided on the nut and the key, the device is susceptible of great variation to provide different combinations for a large number of purchasers. The combination of the rounded head of the securing element seated within the circular housing with a limited space :between the head and the housing and of that portion of the housing which extends above the said head, prevents unauthorized manipulation of the head by any tool save the specially constructed key.
What is claimed is A lock for the circular head of a securing element, comprising a tubular sleeve open at one end and having an inturned flange at the other end and of greater internal diameter than the diameter of said head, the said head having an annular channel at the inner end for the reception of said flange of the sleeve to clamp the latter in place, and that portion of the head beyond the channel being provided with a plurality of longitudinal grooves spaced apart and extending from the front face thereof to the annular channel, and a removable, tubular key having a III polygonal head at one end and an opening inwardly directed longitudinal ribs to fit the grooves of the head to turn the same k when a wrench is applied to the polygonal head which projects from the open end of the sleeve, said sleeve being extended sulficiently beyond the head of the securing element and cooperating with the rounded head to prevent unauthorized manipulation of OLOF A. NORLUN D. FRANK OEHRLI.
US514362A 1921-11-10 1921-11-10 Lock housing for screws or bolts Expired - Lifetime US1447564A (en)

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Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895362A (en) * 1957-09-11 1959-07-21 George H Jamgotchian Wrench
US3060785A (en) * 1959-06-30 1962-10-30 Standard Screw Tamperproof bolt head having hidden tool engaging surfaces
US3105707A (en) * 1961-01-23 1963-10-01 Elliot L Jacobson Plumbing fitting and escutcheon assembly therefor
US3369441A (en) * 1966-05-04 1968-02-20 Anchor Engineering Co Fastener with tapered tool engaging surfaces
US3519979A (en) * 1968-07-26 1970-07-07 Vikoa Inc Tamper-proof electrical termination
US3821975A (en) * 1972-11-16 1974-07-02 L Haker Automotive wheel lock means
US3930428A (en) * 1973-03-05 1976-01-06 Arthur Duane Hale Theft resistant combination lug nut apparatus
US4027572A (en) * 1974-05-13 1977-06-07 Burge William G Theft-prevention screw fastenings
US4037515A (en) * 1976-08-26 1977-07-26 Kesselman David A Tamper resistant fastener
US4168921A (en) * 1975-10-06 1979-09-25 Lrc Electronics, Inc. Cable connector or terminator
US4170918A (en) * 1977-10-28 1979-10-16 Burge William G Theft-prevention screw fastening
FR2493772A1 (en) * 1980-11-13 1982-05-14 Benzoni C Snc A Car anti-theft wheel-nut - has cylindrical head containing notches over which co-operating hexagonal key locates
USD270229S (en) 1980-10-22 1983-08-23 The Eastern Company Tool and operator head for tool-operated lock
USD270424S (en) 1980-10-22 1983-09-06 The Eastern Company Tool operator for tool-operated locks
FR2572064A1 (en) * 1984-10-23 1986-04-25 Dubois Fils Expl Ets Edmond Fastening (braking) shoe for a drum (reel)
US4616535A (en) * 1983-03-17 1986-10-14 Chiavon Ezio R Tamper-proof threaded fastenings
US4645397A (en) * 1984-09-24 1987-02-24 James Padelford Tire theft prevention device
EP0253496A1 (en) * 1986-06-13 1988-01-20 Alan Elgar Herbert Ellis Security wheel nut or bolt
USRE33114E (en) * 1983-03-17 1989-11-21 Tamper-proof threaded fastenings
US4897008A (en) * 1988-10-17 1990-01-30 Mcgard, Inc. Anti-tamper nut
US5112176A (en) * 1991-05-09 1992-05-12 Mcgard, Inc. Shrouded anti-theft locknut
US5360304A (en) * 1993-05-11 1994-11-01 Mcgard, Inc. Fastener construction
US5401133A (en) * 1993-09-16 1995-03-28 Wildeck, Inc. Security washer for security paneling system
US5626062A (en) * 1992-01-16 1997-05-06 Colvin; David S. Socket and ratchet wrench
US5716398A (en) * 1988-02-16 1998-02-10 Baxter International, Inc. Mitral valve rotator assembly
US5730568A (en) * 1996-10-03 1998-03-24 Mcgard, Inc. Anti-galling fastener
US5863166A (en) * 1996-08-05 1999-01-26 Pinhead Components Inc. Anti-theft locking device
US6062787A (en) * 1998-12-22 2000-05-16 Maddalena; Kris L. Tamper resistant valve stem cap
US6321623B1 (en) 1999-10-26 2001-11-27 The Jendyk Company, Inc. Jam-proof and tamper-resistant lug nut
WO2001098674A1 (en) * 2000-06-23 2001-12-27 Sean Kenneth Mackay Security fixing for machine guard
US6571588B1 (en) * 2000-11-03 2003-06-03 Po W. Yuen Security nut and key assembly
US6609401B1 (en) * 2002-09-10 2003-08-26 Yuriy Iskhakbayev Car wheel anti-theft device
US20040130145A1 (en) * 2000-05-10 2004-07-08 U-Haul International, Inc. Coupling disconnect prevention device
US20040202527A1 (en) * 2003-04-11 2004-10-14 Ross William K. Tamper resistant rotably shrouded security cap and tool
US20040208723A1 (en) * 2003-04-15 2004-10-21 Rafal Stawarski Anti-tamper device having an inner shell and an outer shell that rotate independently
US20050247169A1 (en) * 2003-11-26 2005-11-10 Faries Durward I Jr Fastening system and method of fastening objects with enhanced security
US20060272455A1 (en) * 2005-06-02 2006-12-07 The Stanley Works Ratchet wrench
US20070175251A1 (en) * 2006-01-30 2007-08-02 Arthur Sherman Methods and systems for supporting and securing a wheel hub
US7278341B1 (en) * 2005-06-24 2007-10-09 Selective Site Consultants, Inc. Structural bolt security apparatus
US20100186465A1 (en) * 2007-07-23 2010-07-29 Frantz Donald R Universal electronics lock
US20120242077A1 (en) * 2009-04-07 2012-09-27 Neil Shraga Hose Coupling and Protective Hose
US20130011215A1 (en) * 2010-03-15 2013-01-10 Atomic22 Limited Security fastener
US8733140B2 (en) * 2011-04-13 2014-05-27 Charles Jones Trailer theft deterrent device
US8739585B2 (en) 2012-09-14 2014-06-03 Toby Jack Sims Wheel security lock
US9200666B1 (en) 2014-08-01 2015-12-01 Nissan North America, Inc. Vehicle wheel lock assembly
WO2016017269A1 (en) * 2014-07-31 2016-02-04 日産自動車株式会社 Vehicular wheel lock assembly
US20160160529A1 (en) * 2014-12-05 2016-06-09 Jeffrey D. Carnevali Security knob with threaded member
US9429181B2 (en) 2014-07-31 2016-08-30 Nissan North America, Inc. Vehicle wheel lock assembly
US10000945B2 (en) * 2007-07-23 2018-06-19 Donald R. Frantz Universal electronics lock
US10906159B2 (en) 2018-04-30 2021-02-02 Toyota Motor Engineering & Manufacturing North America, Inc. Socket device
WO2022043653A1 (en) * 2020-08-26 2022-03-03 Bryan Michael Risi Fastener

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895362A (en) * 1957-09-11 1959-07-21 George H Jamgotchian Wrench
US3060785A (en) * 1959-06-30 1962-10-30 Standard Screw Tamperproof bolt head having hidden tool engaging surfaces
US3105707A (en) * 1961-01-23 1963-10-01 Elliot L Jacobson Plumbing fitting and escutcheon assembly therefor
US3369441A (en) * 1966-05-04 1968-02-20 Anchor Engineering Co Fastener with tapered tool engaging surfaces
US3519979A (en) * 1968-07-26 1970-07-07 Vikoa Inc Tamper-proof electrical termination
US3821975A (en) * 1972-11-16 1974-07-02 L Haker Automotive wheel lock means
US3930428A (en) * 1973-03-05 1976-01-06 Arthur Duane Hale Theft resistant combination lug nut apparatus
US4027572A (en) * 1974-05-13 1977-06-07 Burge William G Theft-prevention screw fastenings
US4168921A (en) * 1975-10-06 1979-09-25 Lrc Electronics, Inc. Cable connector or terminator
US4037515A (en) * 1976-08-26 1977-07-26 Kesselman David A Tamper resistant fastener
US4170918A (en) * 1977-10-28 1979-10-16 Burge William G Theft-prevention screw fastening
USD270229S (en) 1980-10-22 1983-08-23 The Eastern Company Tool and operator head for tool-operated lock
USD270424S (en) 1980-10-22 1983-09-06 The Eastern Company Tool operator for tool-operated locks
FR2493772A1 (en) * 1980-11-13 1982-05-14 Benzoni C Snc A Car anti-theft wheel-nut - has cylindrical head containing notches over which co-operating hexagonal key locates
USRE33114E (en) * 1983-03-17 1989-11-21 Tamper-proof threaded fastenings
US4616535A (en) * 1983-03-17 1986-10-14 Chiavon Ezio R Tamper-proof threaded fastenings
US4645397A (en) * 1984-09-24 1987-02-24 James Padelford Tire theft prevention device
FR2572064A1 (en) * 1984-10-23 1986-04-25 Dubois Fils Expl Ets Edmond Fastening (braking) shoe for a drum (reel)
EP0253496A1 (en) * 1986-06-13 1988-01-20 Alan Elgar Herbert Ellis Security wheel nut or bolt
US5964800A (en) * 1988-02-16 1999-10-12 Baxter International, Inc. Methods for rotating a prosthetic heart valve within a sewing ring
US5716398A (en) * 1988-02-16 1998-02-10 Baxter International, Inc. Mitral valve rotator assembly
US4897008A (en) * 1988-10-17 1990-01-30 Mcgard, Inc. Anti-tamper nut
US5112176A (en) * 1991-05-09 1992-05-12 Mcgard, Inc. Shrouded anti-theft locknut
US5626062A (en) * 1992-01-16 1997-05-06 Colvin; David S. Socket and ratchet wrench
US5360304A (en) * 1993-05-11 1994-11-01 Mcgard, Inc. Fastener construction
US5401133A (en) * 1993-09-16 1995-03-28 Wildeck, Inc. Security washer for security paneling system
US5863166A (en) * 1996-08-05 1999-01-26 Pinhead Components Inc. Anti-theft locking device
US5730568A (en) * 1996-10-03 1998-03-24 Mcgard, Inc. Anti-galling fastener
US6062787A (en) * 1998-12-22 2000-05-16 Maddalena; Kris L. Tamper resistant valve stem cap
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