US3912404A - Highway post construction - Google Patents

Highway post construction Download PDF

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Publication number
US3912404A
US3912404A US537965A US53796575A US3912404A US 3912404 A US3912404 A US 3912404A US 537965 A US537965 A US 537965A US 53796575 A US53796575 A US 53796575A US 3912404 A US3912404 A US 3912404A
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Prior art keywords
post
coupling
construction
section
sections
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US537965A
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Herbert L Katt
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    • 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
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/16—Joints and connections with adjunctive protector, broken parts retainer, repair, assembly or disassembly feature
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/55—Member ends joined by inserted section

Definitions

  • bolts passing through the upper and lower sections of the post pass through a tie member disposed inside the post and which has a slot receiving at least one of the bolts to provide a lost motion tie upon separation of the post sections as by an impact.
  • FIG. 1 is a perspective view of a highway sign post mounted by a frangible coupling having the tie down of the present invention
  • FIG. 2 is an enlarged detail view of the coupling as assembled upon the post sections and with parts broken away and sectioned;
  • FIG. 3 is a view similar to FIG. 2 showing the position of the parts after an impact.
  • the post 1 is of a hollow open flanged channel construction similar to that employed by many highway construction departments.
  • the post I is constructed of two sections, the upper section 2 which carries asign 3, and the lower support section 4 which generally extends into the ground or a concrete base.
  • the two sections 2 and 4 are joined in alignment by a frangible coupling 5 which is secured to the lower end of upper section 2 and to the upper end of lower section 4 and provides a frangible weakened central transverse vzone6 which breaks upon impact against the upper section by a speeding vehicle or the like.
  • the coupling 5 may take different form for posts of different structure.
  • the coupling 5 may be a cast iron plate fit over the open side of the channel post sections and having side flanges 7 to partially embrace the side edges of the post sections.
  • the coupling 5' is secured to each post section 2 and 4 as by a pair of bolts 8 which pass through the cover plate body portion of the coupling and through the back of the corresponding post section.
  • the coupling 5 breaks at the transverse zone 6 between the adjacent ends of sections 2 and 4, and thereby releases and frees the upper section to avoid damage to it.
  • a tie strip 9 is disposed generally longitudinally of the hollow post and is carried by one or both of the bolts 8 for each post section.
  • Tie strip 9 has a slot 10, preferably at each end, for receiving the bolt or bolts of the corresponding post section, to provide a lost motion action whereby the upper section 4 may move freely at the moment of impact and sufficiently to be released from its supporting lower section 2, but thereafter when the bolts 8 reach the limit of slots 10 the section 4 will be tied and quided to drop toward the ground as illustrated in FIG. 3 where it will not be damaged and will not damage the vehicle or other objects.
  • any tendency of the upper post section 4 to bend at the point of impact can be prevented by either applying to the outside or nesting in the channel thereof a channel piece or reinforcing section 11 secured in place by the upper bolts 8 and extending upwardly along section 4 to a height generally in excess of the zone of impact from vehicle bumpers and the like.
  • a post construction of the type having a frangible coupling supporting an upper section of post upon a lower base section of post, and comprising at least one bolt extending through each post section and securing the same to the coupling, and a tie strip carried by said bolts with a lost motion slot at one end thereof for receiving one of the bolts and providing a limited freedom of movement for the upper post section following an impact which breaks the frangible coupling.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

An upper post section is secured to a base post section near the ground by a hollow centrally frangible coupling having an inside tie member with a lost motion connection across the line of breakage to retain at least a portion of the upper post against release upon impact.

Description

' United States Patent [191 Katt [4 1 Oct.14, 1975 HIGHWAY POST CONSTRUCTION [76] Inventor: Herbert L. Katt, 4107 Pennington Lane, Racine, Wis. 53403 [22] Filed: Jan. 2, 1975 [21] Appl. No.: 537,965
[52] US. Cl. 403/2; 403/11; 403/292 [51] Int. Cl. F16B 7/00 [58] Field of Search 403/2, 11, 312, 292, 123,
[56] References Cited UNITED STATES PATENTS 2,945,659 7/1960 McDonald 52/98 X 6/1974 Katt ..403/2 11/1974 Katt ..403/2 Primary ExaminerAndrew V. Kundrat Attorney, Agent, or Firm-Andrus, Sceales, Starke & Sawall [57] ABSTRACT An upper post section is secured to a base post section near the ground by a hollow centrally frangible coupling having an inside tie member with a lost motion connection across the line of breakage to retain at least a portion of the upper post against release upon impact.
6 Claims, 3 Drawing Figures U.S. Patent Oct. 14, 1975 lial HIGHWAY POST CONSTRUCTION BACKGROUND OF THE INVENTION This invention relates to a highway post construction employing a frangible coupling between an upper post member and a base support.
In the construction of such posts heretofore it has been difficult to prevent flying of the upper post member upon impact 'by a high speed vehicle, and consequent danger of damage to the vehicle or to other nearby vehicles and persons from the flying post section.
Various such couplings are illustrated in applicants earlier U.S. Pat. Nos. 3,820,906 and 3,846,030, the former showing a construction in which the upper post section is tied down against flying upon impact.
SUMMARY OF THE INVENTION In carrying out the present invention bolts passing through the upper and lower sections of the post pass through a tie member disposed inside the post and which has a slot receiving at least one of the bolts to provide a lost motion tie upon separation of the post sections as by an impact.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawing illustrates a preferred embodiment of the invention constituting the best mode presently contemplated for carrying out the invention.
In the drawing:
FIG. 1 is a perspective view of a highway sign post mounted by a frangible coupling having the tie down of the present invention;
FIG. 2 is an enlarged detail view of the coupling as assembled upon the post sections and with parts broken away and sectioned; and
FIG. 3 is a view similar to FIG. 2 showing the position of the parts after an impact.
DESCRIPTION OF THE PREFERRED EMBODIMENT In the embodiment illustrated in the drawing the post 1 is ofa hollow open flanged channel construction similar to that employed by many highway construction departments.
The post I is constructed of two sections, the upper section 2 which carries asign 3, and the lower support section 4 which generally extends into the ground or a concrete base.
The two sections 2 and 4 are joined in alignment by a frangible coupling 5 which is secured to the lower end of upper section 2 and to the upper end of lower section 4 and provides a frangible weakened central transverse vzone6 which breaks upon impact against the upper section by a speeding vehicle or the like.
The coupling 5 may take different form for posts of different structure. For the channel post illustrated the coupling 5 may be a cast iron plate fit over the open side of the channel post sections and having side flanges 7 to partially embrace the side edges of the post sections. g
The coupling 5' is secured to each post section 2 and 4 as by a pair of bolts 8 which pass through the cover plate body portion of the coupling and through the back of the corresponding post section.
When the upper post section 4 receives an impact, as from a high speed vehicle, the coupling 5 breaks at the transverse zone 6 between the adjacent ends of sections 2 and 4, and thereby releases and frees the upper section to avoid damage to it.
In order to prevent the upper section from flying over or into the vehicle or nearby objects and causing damage to them, a tie strip 9 is disposed generally longitudinally of the hollow post and is carried by one or both of the bolts 8 for each post section.
Tie strip 9 has a slot 10, preferably at each end, for receiving the bolt or bolts of the corresponding post section, to provide a lost motion action whereby the upper section 4 may move freely at the moment of impact and sufficiently to be released from its supporting lower section 2, but thereafter when the bolts 8 reach the limit of slots 10 the section 4 will be tied and quided to drop toward the ground as illustrated in FIG. 3 where it will not be damaged and will not damage the vehicle or other objects.
Any tendency of the upper post section 4 to bend at the point of impact can be prevented by either applying to the outside or nesting in the channel thereofa channel piece or reinforcing section 11 secured in place by the upper bolts 8 and extending upwardly along section 4 to a height generally in excess of the zone of impact from vehicle bumpers and the like.
Various modes of carrying out the invention are contemplated as being within the scope of the following claims particularly pointing out and distinctly claiming the subject matter which is regarded as the invention.
I claim:
1. A post construction of the type having a frangible coupling supporting an upper section of post upon a lower base section of post, and comprising at least one bolt extending through each post section and securing the same to the coupling, and a tie strip carried by said bolts with a lost motion slot at one end thereof for receiving one of the bolts and providing a limited freedom of movement for the upper post section following an impact which breaks the frangible coupling.
2. The construction of claim 1 in which a lost motion slot is provided at each end of saidtie strip with the inner ends of said slots spaced generally corresponding to the spacing of the bolts therethrough for the upper and lower post sections. 7
3. The construction of claim 1 in which said post sections are of the open flanged channel type and said coupling straddling the open side of said channel sections, and said tie strip is disposed in the hollow channel region between the coupling and the back of the channel sections.
4. The construction of claim 2 in which said post sections are of the open flanged channel type and said coupling straddling the open side of said channel sections, and said tie strip is disposed in the hollow channel region between the coupling and the back of the channel sections.
5. The construction of claim 3 and a reinforcing channel member nesting with said upper post section with its lower end secured in place by said coupling and its upper end extending to above the general region of impact on the post.
6. The construction of claim 3 and a reinforcing channel member nesting with said upper post section with its lower end secured in place by said coupling and its upper end extending to above the general region of impact on the post.

Claims (6)

1. A post construction of the type having a frangible coupling supporting an upper section of post upon a lower base section of post, and comprising at least one bolt extending through each post section and securing the same to the coupling, and a tie strip carried by said bolts with a lost motion slot at one end thereof for receiving one of the bolts and providing a limited freedom of movement for the upper post section following an impact which breaks the frangible coupling.
2. The construction of claim 1 in which a lost motion slot is provided at each end of said tie strip with the inner ends of said slots spaced generally corresponding to the spacing of the bolts therethrough for the upper and lower post sections.
3. The construction of claim 1 in which said post sections are of the open flanged channel type and said coupling straddling the open side of said channel sections, and said tie strip is disposed in the hollow channel region between the coupling and the back of the channel sections.
4. The construction of claim 2 in which said post sections are of the open flanged channel type and said coupling straddling the open side of said channel sections, and said tie strip is disposed in the hollow channel region between the coupling and the back of the channel sections.
5. The construction of claim 3 and a reinforcing channel member nesting with said upper post section with its lower end secured in place by said coupling and its upper end extending to above the general region of impact on the post.
6. The construction of claim 3 and a reinforcing channel member nesting with said upper post section with its lower end secured in place by said coupling and its upper end extending to above the general region of impact on the post.
US537965A 1975-01-02 1975-01-02 Highway post construction Expired - Lifetime US3912404A (en)

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Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071970A (en) * 1976-04-27 1978-02-07 Transpo-Safety, Inc. Hinge plate for roadside post safety breakaway system for sign panels and the like
US4081177A (en) * 1977-03-10 1978-03-28 The United States Of America As Represented By The Secretary Of The Air Force Break-away outrigger
US4126403A (en) * 1976-10-04 1978-11-21 Franklin Steel Company Post construction
US4133125A (en) * 1977-03-24 1979-01-09 Lariosa Oscar A Self-erecting sign post
EP0005065A2 (en) * 1978-04-21 1979-10-31 Douglas Blanchard Chisholm Yieldable upright assembly
US4367871A (en) * 1980-07-25 1983-01-11 Schiefer William E Articulable training device for racquet sports and the like
US4490062A (en) * 1978-04-21 1984-12-25 Chisholm Douglas B Couplings for sign posts and the like
WO1987006993A1 (en) * 1986-05-05 1987-11-19 Moreno Albert M Post support
US4858876A (en) * 1986-05-05 1989-08-22 Moreno Albert M Post support
US4971267A (en) * 1989-02-13 1990-11-20 Allied-Signal Inc. Multi-fuseable shaft
US5004366A (en) * 1989-11-02 1991-04-02 Simmons George H Break-away coupling
US5044609A (en) * 1989-02-24 1991-09-03 Metalmiccanica Fracasso S.P.A. Guardrail barrier
US5125194A (en) * 1991-05-08 1992-06-30 Marion Steel Company Safety sign post with breakaway connection
US5484217A (en) * 1994-07-15 1996-01-16 Decks, Inc. Restorable breakaway post
US5535555A (en) * 1995-11-17 1996-07-16 The University Foundation, California State University Breakaway post coupling
US5797810A (en) * 1996-01-25 1998-08-25 Sandoval; George R. Batting practice device
US5957425A (en) * 1996-03-13 1999-09-28 The Marion Steel Company Safety sign post with breakaway connection
US6398192B1 (en) * 1999-01-06 2002-06-04 Trn Business Trust Breakaway support post for highway guardrail end treatments
US6467747B1 (en) 1999-11-19 2002-10-22 Western Highway Products, Inc. Breakaway signpost
US6488268B1 (en) 1997-05-09 2002-12-03 Trn Business Trust Breakaway support post for highway guardrail end treatments
WO2003033819A1 (en) * 2001-09-28 2003-04-24 Euromast As Connector for carrying roadside posts
US6715735B2 (en) 2000-08-31 2004-04-06 The Texas A&M University System Head assembly for guardrail extruder terminal
US6783116B2 (en) 1999-01-06 2004-08-31 Trn Business Trust Guardrail end terminal assembly having at least one angle strut
US6902150B2 (en) 2001-11-30 2005-06-07 The Texas A&M University System Steel yielding guardrail support post
US6948703B2 (en) 2002-01-30 2005-09-27 The Texas A&M University System Locking hook bolt and method for using same
US20060027797A1 (en) * 2004-08-07 2006-02-09 Safety By Design Energy absorbing post for roadside safety devices
US7401457B2 (en) 2005-08-01 2008-07-22 Cnh America Llc Auger finger with tether for retaining and retracting the finger when broken
US20080283808A1 (en) * 2003-09-22 2008-11-20 Dallas James Frangible post for guardrail
US20080295472A1 (en) * 2007-06-04 2008-12-04 Thompson Scott K Retention device for separating combine auger finger materials and agricultural material engagement method
US20090121205A1 (en) * 2006-05-04 2009-05-14 Armorflex Limited Releaseable anchor cables for cable barriers that release upon certain load conditions upon the cable barrier
US7556242B2 (en) 2002-01-30 2009-07-07 The Texas A&M University Systems Cable guardrail release system
US20090302288A1 (en) * 2008-06-04 2009-12-10 Dallas James Guardrail
US20100192482A1 (en) * 2007-07-27 2010-08-05 Dallas Rex James Frangible posts
US20100207087A1 (en) * 2006-11-06 2010-08-19 Dallas James Impact energy dissipation system
US20100215427A1 (en) * 2007-06-01 2010-08-26 Dallas James barrier section connection system
US20100243978A1 (en) * 2009-03-31 2010-09-30 Leonhardt Patrick A Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof
US20100299853A1 (en) * 2007-12-12 2010-12-02 Alfred Kaercher Gmbh & Co. Kg Cleaning apparatus
US20110010974A1 (en) * 2010-03-22 2011-01-20 White Franklin B Multipurpose sign bases for supporting temporary roadway safety signs and the like
US8517349B1 (en) 2000-10-05 2013-08-27 The Texas A&M University System Guardrail terminals
US9305475B2 (en) 2010-03-22 2016-04-05 J. E. White, Llc Multipurpose sign bases for supporting temporary roadway safety signs
US20190032363A1 (en) * 2017-07-26 2019-01-31 Neil Joseph Bartnett Hinging Fence Post
US11970826B2 (en) 2020-06-05 2024-04-30 Valtir, LLC Crash cushion

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945659A (en) * 1957-10-10 1960-07-19 Mcdonald Earl Parking meter post construction
US3820906A (en) * 1972-08-10 1974-06-28 H Katt Highway sign post
US3846030A (en) * 1972-08-10 1974-11-05 H Katt Post

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945659A (en) * 1957-10-10 1960-07-19 Mcdonald Earl Parking meter post construction
US3820906A (en) * 1972-08-10 1974-06-28 H Katt Highway sign post
US3846030A (en) * 1972-08-10 1974-11-05 H Katt Post

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071970A (en) * 1976-04-27 1978-02-07 Transpo-Safety, Inc. Hinge plate for roadside post safety breakaway system for sign panels and the like
US4126403A (en) * 1976-10-04 1978-11-21 Franklin Steel Company Post construction
US4081177A (en) * 1977-03-10 1978-03-28 The United States Of America As Represented By The Secretary Of The Air Force Break-away outrigger
US4133125A (en) * 1977-03-24 1979-01-09 Lariosa Oscar A Self-erecting sign post
US4490062A (en) * 1978-04-21 1984-12-25 Chisholm Douglas B Couplings for sign posts and the like
EP0005065A3 (en) * 1978-04-21 1979-11-14 Douglas Blanchard Chisholm Sign post couplings
US4236843A (en) * 1978-04-21 1980-12-02 Chisholm Douglas B Sign post couplings
EP0005065A2 (en) * 1978-04-21 1979-10-31 Douglas Blanchard Chisholm Yieldable upright assembly
US4367871A (en) * 1980-07-25 1983-01-11 Schiefer William E Articulable training device for racquet sports and the like
US4858876A (en) * 1986-05-05 1989-08-22 Moreno Albert M Post support
US4850565A (en) * 1986-05-05 1989-07-25 Moreno Albert M Post support
WO1987006993A1 (en) * 1986-05-05 1987-11-19 Moreno Albert M Post support
WO1989010514A1 (en) * 1986-05-05 1989-11-02 Albert Marion Moreno Post support
US4971267A (en) * 1989-02-13 1990-11-20 Allied-Signal Inc. Multi-fuseable shaft
US5044609A (en) * 1989-02-24 1991-09-03 Metalmiccanica Fracasso S.P.A. Guardrail barrier
US5004366A (en) * 1989-11-02 1991-04-02 Simmons George H Break-away coupling
US5125194A (en) * 1991-05-08 1992-06-30 Marion Steel Company Safety sign post with breakaway connection
US5484217A (en) * 1994-07-15 1996-01-16 Decks, Inc. Restorable breakaway post
US5535555A (en) * 1995-11-17 1996-07-16 The University Foundation, California State University Breakaway post coupling
US5797810A (en) * 1996-01-25 1998-08-25 Sandoval; George R. Batting practice device
US5957425A (en) * 1996-03-13 1999-09-28 The Marion Steel Company Safety sign post with breakaway connection
US8038126B1 (en) 1997-05-09 2011-10-18 Trinity Industries, Inc. Breakaway support post for highway guardrail end treatments
US6886813B2 (en) 1997-05-09 2005-05-03 Exodyne Technologies, Inc. Breakaway support post for highway guardrail end treatments
US6488268B1 (en) 1997-05-09 2002-12-03 Trn Business Trust Breakaway support post for highway guardrail end treatments
US6793204B2 (en) 1997-05-09 2004-09-21 Trn Business Trust Breakaway support post for highway guardrail end treatments
US6783116B2 (en) 1999-01-06 2004-08-31 Trn Business Trust Guardrail end terminal assembly having at least one angle strut
US6619630B2 (en) 1999-01-06 2003-09-16 Trn Business Trust Breakaway support post for highway guardrail end treatments
US6398192B1 (en) * 1999-01-06 2002-06-04 Trn Business Trust Breakaway support post for highway guardrail end treatments
US6467747B1 (en) 1999-11-19 2002-10-22 Western Highway Products, Inc. Breakaway signpost
US6715735B2 (en) 2000-08-31 2004-04-06 The Texas A&M University System Head assembly for guardrail extruder terminal
US8517349B1 (en) 2000-10-05 2013-08-27 The Texas A&M University System Guardrail terminals
WO2003033819A1 (en) * 2001-09-28 2003-04-24 Euromast As Connector for carrying roadside posts
US20040247376A1 (en) * 2001-09-28 2004-12-09 Malo Kjell Arne Connector for carrying raodside posts
AU2002328041C1 (en) * 2001-09-28 2008-12-04 Euromast As Connector for carrying roadside posts
AU2002328041B2 (en) * 2001-09-28 2008-02-14 Euromast As Connector for carrying roadside posts
US6902150B2 (en) 2001-11-30 2005-06-07 The Texas A&M University System Steel yielding guardrail support post
US6948703B2 (en) 2002-01-30 2005-09-27 The Texas A&M University System Locking hook bolt and method for using same
US7556242B2 (en) 2002-01-30 2009-07-07 The Texas A&M University Systems Cable guardrail release system
US7926790B2 (en) 2003-09-22 2011-04-19 Axip Limited Impact slider for guardrail
US20090065754A1 (en) * 2003-09-22 2009-03-12 Dallas James Impact slider for guardrail
US20080283808A1 (en) * 2003-09-22 2008-11-20 Dallas James Frangible post for guardrail
US8177194B2 (en) * 2003-09-22 2012-05-15 Axip Limited Frangible post for guardrail
US20060027797A1 (en) * 2004-08-07 2006-02-09 Safety By Design Energy absorbing post for roadside safety devices
US7401457B2 (en) 2005-08-01 2008-07-22 Cnh America Llc Auger finger with tether for retaining and retracting the finger when broken
US10174471B2 (en) 2006-05-04 2019-01-08 Valmont Highway Technology Limited Cable-barriers
US20090121205A1 (en) * 2006-05-04 2009-05-14 Armorflex Limited Releaseable anchor cables for cable barriers that release upon certain load conditions upon the cable barrier
US8915486B2 (en) 2006-05-04 2014-12-23 Valmont Highway Technology Limited Releaseable anchor cables for cable barriers that release upon certain load conditions upon the cable barrier
US20100207087A1 (en) * 2006-11-06 2010-08-19 Dallas James Impact energy dissipation system
US8596617B2 (en) 2006-11-06 2013-12-03 Axip Limited Impact energy dissipation system
US20100215427A1 (en) * 2007-06-01 2010-08-26 Dallas James barrier section connection system
US8864108B2 (en) 2007-06-01 2014-10-21 Valmont Highway Technology Limited Barrier section connection system
US20080295472A1 (en) * 2007-06-04 2008-12-04 Thompson Scott K Retention device for separating combine auger finger materials and agricultural material engagement method
US20100192482A1 (en) * 2007-07-27 2010-08-05 Dallas Rex James Frangible posts
US8978225B2 (en) 2007-07-27 2015-03-17 Valmont Highway Technology Limited Frangible posts
US20100299853A1 (en) * 2007-12-12 2010-12-02 Alfred Kaercher Gmbh & Co. Kg Cleaning apparatus
US8261759B2 (en) * 2007-12-12 2012-09-11 Alfred Kaercher Gmbh & Co. Kg Cleaning apparatus with fastening device
US20090302288A1 (en) * 2008-06-04 2009-12-10 Dallas James Guardrail
US8424849B2 (en) 2008-06-04 2013-04-23 Axip Limited Guardrail
US8360400B2 (en) 2009-03-31 2013-01-29 Energy Absorption Systems, Inc. Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof
US8215619B2 (en) 2009-03-31 2012-07-10 Energy Absorption Systems, Inc. Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof
US20100243978A1 (en) * 2009-03-31 2010-09-30 Leonhardt Patrick A Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof
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