US3552698A - Break-away coupling for poles - Google Patents

Break-away coupling for poles Download PDF

Info

Publication number
US3552698A
US3552698A US737988A US3552698DA US3552698A US 3552698 A US3552698 A US 3552698A US 737988 A US737988 A US 737988A US 3552698D A US3552698D A US 3552698DA US 3552698 A US3552698 A US 3552698A
Authority
US
United States
Prior art keywords
bolt
top wall
coupling
pole
base
Prior art date
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
Application number
US737988A
Inventor
Robert E Kinney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
W F KEEGAN AND CO Inc
Original Assignee
W F KEEGAN AND CO Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by W F KEEGAN AND CO Inc filed Critical W F KEEGAN AND CO Inc
Application granted granted Critical
Publication of US3552698A publication Critical patent/US3552698A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
    • E01F9/635—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact by shearing or tearing, e.g. having weakened zones
    • 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
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/63—Frangible connections

Definitions

  • ROBERT EKINNEY ATTOR N EYS BREAK-AWAY COUPLING FOR POLES THE BACKGROUND Traffic light standards, utility, and other poles, are plentifully used on, and along the shoulders of, roadways, and except for breaking off when the accidental impact is hard enough, they constitute the proverbial immovable object in the path of a speeding vehicle, with disastrous results to the vehicle and its occupants, whether the pole breaks off or resists the impact applied.
  • the object of this present invention is to provide an improved breakaway mounting which is inexpensive to make and easy to use; which is adjustable as to the resistance presented, and which is dependable in its operation.
  • the invention consists of a pole-receiving and supporting member, a fixed foundation, a couplingmember secured to said foundation, and means for detachably securing said supporting member to said coupling means in such a manner that, when struck by a vehicle having a given momentum, the pole and its supporting member are automatically detached from said coupling so as to dissipate some of the force of impact and correspondingly, to reduce the damage and injury which normally follow if the same impact is resisted by an immovable and unbreakable pole.
  • FIG. 1 is a top plan view of a pole mounting embodying the invention, the same being shown in actual use.
  • FIG. 2 is an elevational view looking in the direction of line 22 on FIG. 1.
  • FIG. 3 is an enlarged sectional view looking in the direction ofline 3-3 on FIG. 2.
  • FIG. 4 is an enlarged, exploded, perspective view showing how the breakaway coupling detachably secures the pole-supporting member to the foundation.
  • the pole-receiving and supporting member consists of: a base plate provided with a collaror sleeve 12, for receiving the lower end of a pole l4; studs 16 suitably secured to the foundation by couplings 18 secured to the studs, and means for securing the base plate to couplings detachably, and with a controlled friction factor which determines the impact force under which the pole will break away from the coupling.
  • the base plate 10 and collar 12 can be made of any material which is strong enough to support the pole to be mounted.
  • the pole may have a tight fit in collar 12 or it may be secured thereto.
  • Base plate 10 has a number of openings 20 which are hereinafter further referred to.
  • Studs 16 are secured to the roadway in any suitable manner, such as by sinking their lower ends in concrete, or they may be provided with flanges 22 which are embedded in the roadbed.
  • the number of studs 16 corresponds to the number of couplings l8 and their locations correspond to the locations of holes 20 in base I0.
  • Each coupling 18 includes a housing 24 formed of a sidewall 26, a top wall 28, and a bottom wall which is provided with an opening 32 and a threaded nut 34 for'engagement with a stud l6. Sidewall 26 and top wall 28 are cut away to provide a V-shaped opening which is generally designated by numeral 48.
  • the means for detachably securing base plate It) to the coupling includes a bolt 36, washers 38 and 40, and preferably but not necessarily washer 42.
  • the materials for washers 38 and 40 and housing 24 are chosen to give a desired low coefficient of friction between the washers 38 and 40 and the housing 24-.
  • coupling 18 can be made of iron or steel or the like, and washers 38 and 30 can be made of graphite impregnated bronze, or the like.
  • a number of studs 16, which correspond to thenumber of openings 20 in base plate 10, are secured to the roadbed, and coupling members 18 are secured to the studs by means ofnuts 3-11. Holes 32 permit vertical adjustment and make precise machining unnecessary.
  • the base 10 is secured to the top wall 2% ofa housing 24 by passing bolts 36 through washer 38 and then passing the bolt through opening48 to the position of FIG. 4. The bolt is then passed through washer 40 and through an opening 20 in base plate, to be engaged by nut 44 with or without the intervention of washer 42.
  • the base plate 10 can be clamped with the force needed to sustain the pole in its vertical position against wind pressure and minor impacts of an order not calculated to cause serious damage or injury. Because base 10 is ofa relatively large area and is secured at a number of space points, the pressure ex erted by each nut 44 need not be greatenough to cause serious binding at the shearing, or break away plane. Since washers 38 and 4t) and housing 24 have a relatively low coefficient of friction, it is possible to tighten clamp base plate It) to coupling 48 while still permitting bolt 36 to move out of disengagement with its coupling under an impact of predetermined value. v
  • the total resistance to impact is, in part, a function of the mass of the pole and its supporting base 10. Therefore, other things being equal, the heavier the pole and its base, the greater its resistance to movement. Since the minimal mass of the pole and its support is fixed, it is necessary to minimize the mass ofthe devices by which the pole is attached, at minimum. According to my invention, this is accomplished by reducing the weight of the attaching devices to that of the nuts 44 which clamp the base in position. This is made possible by fixing foundation studs 16 to the road bed, by securing couplings 18 to the studs, and by providing holes 20 which more than compensate for the added weight of nuts 44.
  • This feature ofmy invention also greatly facilitates the operation, which consists of screwing couplings 18 in position; assembling bolts 36; lowering base plate onto bolts 36, and applying nuts 44.
  • tightening nuts 44 sufficiently to hold the pole will not produce a degree of binding at the shearing plane which would seriously increase the resistance to impact, which will, to a great extent be a function of the coefficient of friction of washers 38 and 40 and coupling 48.
  • Means for detachably securing a vertical pole to a fixed support including: I
  • a base plate adapted to support a pole
  • each coupling comprising a top wall having a laterally extending opening therein leading from the edge toward the center thereof for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall;
  • said base plate having openings for the passage therethrough of the upper portions of said bolts, respec tively;
  • Means for detachably securing a vertical pole to a fixed support including: I
  • a base plate adapted to support a pole
  • said coupling comprising a top-wall having a laterally, in-
  • said base plate having at least one opening for the passage therethrough of the upper portions of said bolt
  • an upper washer carried by said bolt and disposed between said top wall and said base; and f a nut for engaging the portion of the bolt which passes through said opening to clamp said base and said washers to said top wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

A pole-supporting member, a fixed foundation, and coupling means connecting said member to said foundation with a controlled force and in such a manner that, when subjected to horizontal impact of a given value, the pole is automatically disengaged from the coupling and is free to move in the direction of the impact.

Description

United States Patent lnventor Robert E. Kinney Pennington, NJ.
June 18, 1968 Jan. 5, 1971 W. F. Keegan & Company, Inc. Havertown, Pa.
a corporation of Pennsylvania Appl. No. Filed Patented Assignee BREAK-AWAY COUPLING FOR POLES 4 Claims, 4 Drawing Figs.
U.S. Cl. 248/158, 85/61. 85/50. 85/51: 94/1.5:52/298, 52/573,
Int. Cl. ..Fl6m 13/00 Field of Search 248/158, 44; 52/709, 298, 573; 287/20; 85/51, 50, 61;
[56] References Cited UNlTED STATES PATENTS 635,885 10/1899 Watson 85/51 1,498,185 6/1924 Gleockle etal... 151/4176 3,343,322 9/1967 Lurkis et a1 52/298 FOREIGN PATENTS 147,644 1/1921 Great Britain 52/709 783,459 4/1968 Canada 52/298 Primary Examiner-Marion Parsons, J r. AttorneyNech0 and Kimmelman ABSTRACT: A pole-supporting member, a fixed foundation, and coupling means connecting said member to said foundation with a controlled force and in such a manner that, when subjected to horizontal impact of a given value, the pole is automatically disengaged from the coupling and is free to move in the direction of the impact.
PATENTED JAN 51% SHEET 1 OF 2 INVENTOR. ROBERT E.K!NNEY PATENTEUJAN 5mm 3552.698
sum 2 BF 2 INVENTOR. ROBERT EKINNEY ATTOR N EYS BREAK-AWAY COUPLING FOR POLES THE BACKGROUND Traffic light standards, utility, and other poles, are plentifully used on, and along the shoulders of, roadways, and except for breaking off when the accidental impact is hard enough, they constitute the proverbial immovable object in the path of a speeding vehicle, with disastrous results to the vehicle and its occupants, whether the pole breaks off or resists the impact applied.
To reduce the ever-mounting toll of personal injury and property damage, it has heretofore been proposed to provide various forms of breakaway couplings, but all such couplings of which I am aware have been complicated and expensive, and have been incapable of nice adjustment according to the force of impact against which it is desired to protect. It has also been proposed to use spring-loaded poles which bend on impact. Such poles are not wholly desirable because of the expense involved and because the rebound which may occur can cause considerable further damage.
The object of this present invention is to provide an improved breakaway mounting which is inexpensive to make and easy to use; which is adjustable as to the resistance presented, and which is dependable in its operation.
THE INVENTION The invention consists of a pole-receiving and supporting member, a fixed foundation, a couplingmember secured to said foundation, and means for detachably securing said supporting member to said coupling means in such a manner that, when struck by a vehicle having a given momentum, the pole and its supporting member are automatically detached from said coupling so as to dissipate some of the force of impact and correspondingly, to reduce the damage and injury which normally follow if the same impact is resisted by an immovable and unbreakable pole.
IN THE DRAWINGS FIG. 1 is a top plan view of a pole mounting embodying the invention, the same being shown in actual use.
FIG. 2 is an elevational view looking in the direction of line 22 on FIG. 1.
FIG. 3 is an enlarged sectional view looking in the direction ofline 3-3 on FIG. 2.
FIG. 4 is an enlarged, exploded, perspective view showing how the breakaway coupling detachably secures the pole-supporting member to the foundation.
The pole-receiving and supporting member consists of: a base plate provided with a collaror sleeve 12, for receiving the lower end of a pole l4; studs 16 suitably secured to the foundation by couplings 18 secured to the studs, and means for securing the base plate to couplings detachably, and with a controlled friction factor which determines the impact force under which the pole will break away from the coupling.
The base plate 10 and collar 12 can be made of any material which is strong enough to support the pole to be mounted. The pole may have a tight fit in collar 12 or it may be secured thereto. Base plate 10 has a number of openings 20 which are hereinafter further referred to.
Studs 16 are secured to the roadway in any suitable manner, such as by sinking their lower ends in concrete, or they may be provided with flanges 22 which are embedded in the roadbed. The number of studs 16 corresponds to the number of couplings l8 and their locations correspond to the locations of holes 20 in base I0.
Each coupling 18 includes a housing 24 formed of a sidewall 26, a top wall 28, and a bottom wall which is provided with an opening 32 and a threaded nut 34 for'engagement with a stud l6. Sidewall 26 and top wall 28 are cut away to provide a V-shaped opening which is generally designated by numeral 48. The means for detachably securing base plate It) to the coupling includes a bolt 36, washers 38 and 40, and preferably but not necessarily washer 42. The materials for washers 38 and 40 and housing 24 are chosen to give a desired low coefficient of friction between the washers 38 and 40 and the housing 24-. For example, coupling 18 can be made of iron or steel or the like, and washers 38 and 30 can be made of graphite impregnated bronze, or the like.
To mount a pole according to this invention, a number of studs 16, which correspond to thenumber of openings 20 in base plate 10, are secured to the roadbed, and coupling members 18 are secured to the studs by means ofnuts 3-11. Holes 32 permit vertical adjustment and make precise machining unnecessary. The base 10 is secured to the top wall 2% ofa housing 24 by passing bolts 36 through washer 38 and then passing the bolt through opening48 to the position of FIG. 4. The bolt is then passed through washer 40 and through an opening 20 in base plate, to be engaged by nut 44 with or without the intervention of washer 42. It will be noted that by tightening nut 44, the base plate 10 can be clamped with the force needed to sustain the pole in its vertical position against wind pressure and minor impacts of an order not calculated to cause serious damage or injury. Because base 10 is ofa relatively large area and is secured at a number of space points, the pressure ex erted by each nut 44 need not be greatenough to cause serious binding at the shearing, or break away plane. Since washers 38 and 4t) and housing 24 have a relatively low coefficient of friction, it is possible to tighten clamp base plate It) to coupling 48 while still permitting bolt 36 to move out of disengagement with its coupling under an impact of predetermined value. v
The total resistance to impact is, in part, a function of the mass of the pole and its supporting base 10. Therefore, other things being equal, the heavier the pole and its base, the greater its resistance to movement. Since the minimal mass of the pole and its support is fixed, it is necessary to minimize the mass ofthe devices by which the pole is attached, at minimum. According to my invention, this is accomplished by reducing the weight of the attaching devices to that of the nuts 44 which clamp the base in position. This is made possible by fixing foundation studs 16 to the road bed, by securing couplings 18 to the studs, and by providing holes 20 which more than compensate for the added weight of nuts 44. This feature ofmy invention also greatly facilitates the operation, which consists of screwing couplings 18 in position; assembling bolts 36; lowering base plate onto bolts 36, and applying nuts 44. By this arrangement, tightening nuts 44 sufficiently to hold the pole will not produce a degree of binding at the shearing plane which would seriously increase the resistance to impact, which will, to a great extent be a function of the coefficient of friction of washers 38 and 40 and coupling 48.
I claim:
1. Means for detachably securing a vertical pole to a fixed support, said means including: I
a plurality of spaced vertical studs fixedly secured to the road bed;
a base plate adapted to support a pole;
a plurality of couplings secured to said studs, respectively;
each coupling comprising a top wall having a laterally extending opening therein leading from the edge toward the center thereof for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall;
said base plate having openings for the passage therethrough of the upper portions of said bolts, respec tively;
a lower washer carried by and disposed between the head of the bolt and the underside of the top wall of each coupling;
an upper washer carried by said bolt and disposed between said top wall and said base; and
nuts for engaging the portions of the bolts which pass through said opening to clamp said base and said washers to said top walls.
2. The structure defined in claim I wherein the washers and coupling are made of material having a low coefficient friction value permitting the base to move laterally off of the couplings.
3. The apparatus defined in claim 1 wherein said top wall is made of iron and at least one of said washers is made of bronze.
4. Means for detachably securing a vertical pole to a fixed support, said means including: I
a plurality of spaced vertical studs fixedly secured to the road bed;
a base plate adapted to support a pole;
at least one coupling secured to said stud;
said coupling comprising a top-wall having a laterally, in-
wardly extending opening therein for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall;
said base plate having at least one opening for the passage therethrough of the upper portions of said bolt;
a lower washer carried by and disposed-between the head of the bolt and the underside of said top wall of said coupling; 7
an upper washer carried by said bolt and disposed between said top wall and said base; and f a nut for engaging the portion of the bolt which passes through said opening to clamp said base and said washers to said top wall.

Claims (4)

1. Means for detachably securing a vertical pole to a fixed support, said means including: a plurality of spaced vertical studs fixedly secured to the road bed; a base plate adapted to support a pole; a plurality of couplings secured to said studs, respectively; each coupling comprising a top wall having a laterally extenDing opening therein leading from the edge toward the center thereof for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall; said base plate having openings for the passage therethrough of the upper portions of said bolts, respectively; a lower washer carried by and disposed between the head of the bolt and the underside of the top wall of each coupling; an upper washer carried by said bolt and disposed between said top wall and said base; and nuts for engaging the portions of the bolts which pass through said opening to clamp said base and said washers to said top walls.
2. The structure defined in claim 1 wherein the washers and coupling are made of material having a low coefficient friction value permitting the base to move laterally off of the couplings.
3. The apparatus defined in claim 1 wherein said top wall is made of iron and at least one of said washers is made of bronze.
4. Means for detachably securing a vertical pole to a fixed support, said means including: a plurality of spaced vertical studs fixedly secured to the road bed; a base plate adapted to support a pole; at least one coupling secured to said stud; said coupling comprising a top wall having a laterally, inwardly extending opening therein for the passage of a bolt therethrough, with the head of the bolt bearing against the underside of said top wall; said base plate having at least one opening for the passage therethrough of the upper portions of said bolt; a lower washer carried by and disposed between the head of the bolt and the underside of said top wall of said coupling; an upper washer carried by said bolt and disposed between said top wall and said base; and a nut for engaging the portion of the bolt which passes through said opening to clamp said base and said washers to said top wall.
US737988A 1968-06-18 1968-06-18 Break-away coupling for poles Expired - Lifetime US3552698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73798868A 1968-06-18 1968-06-18

Publications (1)

Publication Number Publication Date
US3552698A true US3552698A (en) 1971-01-05

Family

ID=24966100

Family Applications (1)

Application Number Title Priority Date Filing Date
US737988A Expired - Lifetime US3552698A (en) 1968-06-18 1968-06-18 Break-away coupling for poles

Country Status (1)

Country Link
US (1) US3552698A (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698144A (en) * 1970-12-03 1972-10-17 Patrick Joseph Stratton Post anchor
US3712589A (en) * 1971-06-24 1973-01-23 Olin Corp Porous or foamed metal energy absorption device
US3713262A (en) * 1970-12-10 1973-01-30 J Jatcko Taper lock break-away pole structure
US3802135A (en) * 1970-08-27 1974-04-09 E Weichenrieder Hollow plastic break-away post
US3837752A (en) * 1973-01-26 1974-09-24 J Shewchuk Coupling for break away pole bases
US3858997A (en) * 1974-02-20 1975-01-07 Richard B Boone Portable traffic sign and base therefor
US3902818A (en) * 1974-02-20 1975-09-02 Richard B Boone Portable traffic sign and base therefor
US4322925A (en) * 1978-03-30 1982-04-06 Geisler Jr Alfred J Mobile structure
US4522530A (en) * 1982-12-09 1985-06-11 Arthur W Eugene Self-erecting roadway marking post
US4638608A (en) * 1985-10-07 1987-01-27 Precisionform, Inc. Breakaway standard support assembly
US4779389A (en) * 1987-03-02 1988-10-25 Landers Phillip G Method and apparatus for insitu reinforcement, repair and safety enhancement of wooden poles
US5749189A (en) * 1993-06-18 1998-05-12 Dekont Teknik Ab Post device
US20040211876A1 (en) * 2003-04-28 2004-10-28 Victor Cote Anchor bracket for post
US6820389B1 (en) * 2003-03-20 2004-11-23 Valmont Industries, Inc. Support pole having a traffic signal support arm attached thereto
US6910826B1 (en) 2002-10-30 2005-06-28 Valmont Industries, Inc. Breakaway coupling
US7402065B1 (en) * 2007-10-03 2008-07-22 Hon Hai Precision Ind. Co., Ltd. Socket connector for carrying integrated circuit package
US20090047809A1 (en) * 2007-08-17 2009-02-19 Hon Hai Precision Ind. Co., Ltd. Electrical connector having stiffener fastened by groups of one-step screw post and mating sleeve
US20090104796A1 (en) * 2007-10-19 2009-04-23 Hon Hai Precision Ind. Co., Ltd. Electrical connector having a connecting assembly
US7644550B2 (en) * 2007-12-14 2010-01-12 Gary Meyer Articulating raised access floor panel
US20100199581A1 (en) * 2003-10-27 2010-08-12 Specialty Hardware L.P. Compression post for structural shear wall
US8141830B1 (en) * 2011-04-22 2012-03-27 Hudson Robert E Corner pole bracket system
US20150007523A1 (en) * 2013-07-03 2015-01-08 Mainstream Energy Corporation Devices, systems, and methods for securing a component to a surface
FR3033805A1 (en) * 2015-03-18 2016-09-23 Lacroix Signalisation SAFETY DEVICE WITH SLIDING FUNCTION FOR MAT.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US619988A (en) * 1899-02-21 Leg-fastening for bath-tubs
US635885A (en) * 1899-06-24 1899-10-31 Frank L Watson Pipe-hanger.
GB147644A (en) * 1919-04-22 1921-01-06 Fritz Glaeser Wall screw
US1498185A (en) * 1920-11-30 1924-06-17 Jr August F Gleockle Wall piece for supporting and anchoring radiators
US3343322A (en) * 1964-02-17 1967-09-26 Lurkis Alexander Utility pole bases
CA783459A (en) * 1968-04-23 Pfaff And Kendall Support for highway poles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US619988A (en) * 1899-02-21 Leg-fastening for bath-tubs
CA783459A (en) * 1968-04-23 Pfaff And Kendall Support for highway poles
US635885A (en) * 1899-06-24 1899-10-31 Frank L Watson Pipe-hanger.
GB147644A (en) * 1919-04-22 1921-01-06 Fritz Glaeser Wall screw
US1498185A (en) * 1920-11-30 1924-06-17 Jr August F Gleockle Wall piece for supporting and anchoring radiators
US3343322A (en) * 1964-02-17 1967-09-26 Lurkis Alexander Utility pole bases

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802135A (en) * 1970-08-27 1974-04-09 E Weichenrieder Hollow plastic break-away post
US3698144A (en) * 1970-12-03 1972-10-17 Patrick Joseph Stratton Post anchor
US3713262A (en) * 1970-12-10 1973-01-30 J Jatcko Taper lock break-away pole structure
US3712589A (en) * 1971-06-24 1973-01-23 Olin Corp Porous or foamed metal energy absorption device
US3837752A (en) * 1973-01-26 1974-09-24 J Shewchuk Coupling for break away pole bases
US3858997A (en) * 1974-02-20 1975-01-07 Richard B Boone Portable traffic sign and base therefor
US3902818A (en) * 1974-02-20 1975-09-02 Richard B Boone Portable traffic sign and base therefor
US4322925A (en) * 1978-03-30 1982-04-06 Geisler Jr Alfred J Mobile structure
US4522530A (en) * 1982-12-09 1985-06-11 Arthur W Eugene Self-erecting roadway marking post
US4638608A (en) * 1985-10-07 1987-01-27 Precisionform, Inc. Breakaway standard support assembly
US4779389A (en) * 1987-03-02 1988-10-25 Landers Phillip G Method and apparatus for insitu reinforcement, repair and safety enhancement of wooden poles
US5749189A (en) * 1993-06-18 1998-05-12 Dekont Teknik Ab Post device
US6910826B1 (en) 2002-10-30 2005-06-28 Valmont Industries, Inc. Breakaway coupling
US6820389B1 (en) * 2003-03-20 2004-11-23 Valmont Industries, Inc. Support pole having a traffic signal support arm attached thereto
US20040211876A1 (en) * 2003-04-28 2004-10-28 Victor Cote Anchor bracket for post
US6988700B2 (en) * 2003-04-28 2006-01-24 Victor Cote Anchor bracket for post
US20100199581A1 (en) * 2003-10-27 2010-08-12 Specialty Hardware L.P. Compression post for structural shear wall
US8042313B2 (en) 2003-10-27 2011-10-25 Specialty Hardware L.P. Compression post for structural shear wall
US20110011030A1 (en) * 2003-10-27 2011-01-20 Specialty Hardware L.P. Compression post for structural shear wall
US7810290B2 (en) 2003-10-27 2010-10-12 Specialty Hardware L.P. Compression post for structural shear wall
US20090047809A1 (en) * 2007-08-17 2009-02-19 Hon Hai Precision Ind. Co., Ltd. Electrical connector having stiffener fastened by groups of one-step screw post and mating sleeve
US7402065B1 (en) * 2007-10-03 2008-07-22 Hon Hai Precision Ind. Co., Ltd. Socket connector for carrying integrated circuit package
US7628651B2 (en) * 2007-10-19 2009-12-08 Hon Hai Precision Ind. Co., Ltd. Electrical connector having a connecting assembly
US20090104796A1 (en) * 2007-10-19 2009-04-23 Hon Hai Precision Ind. Co., Ltd. Electrical connector having a connecting assembly
US7644550B2 (en) * 2007-12-14 2010-01-12 Gary Meyer Articulating raised access floor panel
US8141830B1 (en) * 2011-04-22 2012-03-27 Hudson Robert E Corner pole bracket system
US20150007523A1 (en) * 2013-07-03 2015-01-08 Mainstream Energy Corporation Devices, systems, and methods for securing a component to a surface
US9151315B2 (en) * 2013-07-03 2015-10-06 Sunrun South Llc Devices, systems, and methods for securing a component to a surface
FR3033805A1 (en) * 2015-03-18 2016-09-23 Lacroix Signalisation SAFETY DEVICE WITH SLIDING FUNCTION FOR MAT.

Similar Documents

Publication Publication Date Title
US3552698A (en) Break-away coupling for poles
US6409156B2 (en) Breakaway bracket
US3576293A (en) Direct fixation rail fastener apparatus
US6540196B1 (en) Break away support structure coupling
KR20090084420A (en) Guardrail
KR102454872B1 (en) Device for fixing exterior building material using spring of earthquake proof type
KR102136525B1 (en) Position variable vibration proof structure for power distributor
EA025553B1 (en) Removable base for vertical street furniture elements
CN214035055U (en) Diversion protector for construction
US2305377A (en) Fire hydrant, street light standard, and similar structures
KR102031254B1 (en) Seismic switchboards adjustable for height
CN103850179B (en) Rack-and-pinion bridge extension joint
US20090166130A1 (en) Apparatus and Method for Securing Fall Arrest Equipment
JP2502033Y2 (en) Gaze guide
CN105064237A (en) Highway height limiting device
CN214428995U (en) Outdoor distribution box installing support
CN212005329U (en) Anti-falling type navigation mark lamp capable of preventing rolling down
CN210216210U (en) Adjustable traffic warning post
CN216840995U (en) Protective wall for engineering construction
KR100483800B1 (en) A road-guide plate attaachable on the guard rail
KR102640862B1 (en) High voltage supply of electric power equipmnet
KR100617973B1 (en) Apparatus for bonding traffic board for protecting down
CN219260823U (en) Multipurpose municipal road median
CN210684436U (en) Height limiting device for bridge
US2050027A (en) Auxiliary for highway guards