US3820912A - Mobile collapsible ramp - Google Patents

Mobile collapsible ramp Download PDF

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Publication number
US3820912A
US3820912A US00305524A US30552472A US3820912A US 3820912 A US3820912 A US 3820912A US 00305524 A US00305524 A US 00305524A US 30552472 A US30552472 A US 30552472A US 3820912 A US3820912 A US 3820912A
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Prior art keywords
blocks
mobile collapsible
collapsible ramp
ground
block
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Expired - Lifetime
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US00305524A
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J Hughes
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Lee Raymond Organization Inc
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Lee Raymond Organization Inc
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E01C9/02—Wheel tracks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B63B27/143—Ramps
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/28—Rail tracks for guiding vehicles when running on road or similar surface
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/18—Longitudinally sectional layer of three or more sections
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/19—Sheets or webs edge spliced or joined
    • Y10T428/192—Sheets or webs coplanar

Definitions

  • a mobile collapsible ramp comprises a first plurality of blocks coupled to each other in a chain and removably affixed to the ground.
  • a second plurality of blocks are coupled to each other in a chain and are removably affixed to the ground in spaced substantially parallel relation to the first plurality of blocks.
  • Each of the blocks has a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel.
  • the present invention relates to a mobile collapsible ramp. More particularly, the invention relates to a mobile collapsible personal boat ramp.
  • the principal object of the invention is to provide a mobile collapsible ramp which is of simple structure and is inexpensive in manufacture, is collapsed and positioned for use with rapidity, facility, ease and convenience, is easily and conveniently transported, and is utilizable as a personal boat ramp or a ramp for any suitable type of vehicle under any suitable circumstances.
  • FIG. 1 is a perspective view of an embodiment of the mobile invention in use position
  • FIG. 2 is a view of a pair of chains of blocks affixed to each other lengthwise;
  • FIG. 3 is a per spective view of an end block of the mobile collapsible ramp of the invention.
  • FIG. 4 is an end view of a block of the mobile collapsible ramp of the invention.
  • FIGS. 5 and 6 are end views of another embodiment of a block of the mobile collapsible ramp of the invention.
  • FIG. 7 is a view of part of a block of the mobile collapsible ramp of the invention and another embodiment of a fastening ring affixable thereto;
  • FIG. 8 is an end view of still another embodiment of a block of the mobile collapsible ramp of the invention.
  • FIG. 9 is an end view of yet another embodiment of a block of the mobile collapsible ramp of the invention.
  • the mobile collapsible ramp of the invention comprises a first plurality of blocks 1, 2, 3, 4, and so on (FIG. 1).
  • Each of the blocks has a substantially resilient undersurface 5 (FIG. 4) and an upper surface 6, 7, 8, 9, and so on, respectively (FIG. 1), for accommodating a vehicle wheel (not shown in the FIGS).
  • the first plurality of blocks 1, 2, 3, 4 and so on, are coupled to each other in a chain (FIG. 1) by any suitable means such as, for example, a rope 10 (FIG. 1) passing through a bore 11 (FIG. 4) formed through each block.
  • the first plurality of blocks 1, 2, 3, 4 and so on, are remobably affixed to the ground by any suitable means such as, for example, a substantially vertical bore 12 (FIG. 1) through each block or a ring member 13 (FIGS. 1 and 3) or 14 (FIG. 7) affixed to each block and extending from a side thereof.
  • a spike 15 (FIGS. 1 and 3) is adapted to pass through the vertical bore 12 or the ring member 13 or 14 into the ground.
  • Each of asecond plurality of blocks 16, 17, 18, and so on (FIG. 1), has a substantially resilient undersurface 5 (FIG. 4) and an upper surface 19, 20, 21, and so on, respectively (FIG. 1 for accommodating a vehicle wheel (not shown in the FIGS.)
  • the second plurality of blocks 16, 17, 18, and so on, are coupled to each other in a chain (FIG. 1) by any suitable means such as, for example, a rope 22 (FIG. 1) passing through a bore 11 (FIG. 4) formed through each block.
  • a spike 25 is adapted to pass through the vertical bore 23 or the ring member 24 or 14 into the ground.
  • the first and second plurality of blocks are fastened to the ground in spaced substantially parallel relation, as shown in FIG. 1.
  • each block may be concave, as shown in FIGS. 1, 3 and 4, or may be divided into separate surfaces, as shown in FIGS. 5, 6 and 9.
  • the separate surfaces 26 and 27, and 26 and 27 are on two different levels above the ground.
  • each block has a median divider 28 projecting above the upper surface between the two surfaces 29 and 30.
  • the wheels 31 and 32 of a trailer may be accommodated on the surfaces 26 and 26, and the wheels 33 and 34 of a towing vehicle may be accommodated on the surfaces 27 and 27'.
  • each of the undersurface 35 and the upper surface 36 is concave.
  • FIG. 2 shows two chains of blocks 37 and 38 affixed to each other lengthwise.
  • a wedge 39 may be placed between the chains to level the depression formed by the sloped ends of the end blocks of said chains.
  • a mobile collapsible ramp comprising a first plurality of blocks each having a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel, each of the blocks having a bore formed therethrough;
  • first rope means passing through the bores and coupling the first plurality of blocks to each other in a chain
  • first fastening means removably affixing the first plurality of blocks to the ground
  • a second plurality of blocks each having a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel, each of the blocks having a bore formed therethrough;
  • second fastening means remova'bly affixing the second plurality of blocks to the ground in spaced substantially parallel relation to the first plurality of blocks.
  • each of the first and second fastening means comprises a ring member affixed to each block and extending from a side thereof and a spike adapted to pass through the ring member into the ground.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

A mobile collapsible ramp comprises a first plurality of blocks coupled to each other in a chain and removably affixed to the ground. A second plurality of blocks are coupled to each other in a chain and are removably affixed to the ground in spaced substantially parallel relation to the first plurality of blocks. Each of the blocks has a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel.

Description

United States Patent 1191 Hughes 1 June 28, 1974 1 MOBILE COLLAPSIBLE RAMP [75] Inventor: Jack Thomas Hughes, Powell River,
B.C., Canada [73] Assignee: The Raymond Lee Organization,
Inc., New York, NY. a part interest [22] Filed: Nov. 10, 1972 [21] Appl. N0.: 305,524
[52] US. Cl. 404/35 [51] Int. Cl. E0lc 5/16 [58] Field of Search 404/35, 36, 45, 40, 17; 14/1 [56] References Cited UNITED STATES PATENTS 324,649 8/1885 Brown 404 35 x 1,070,248 8/1913 Haldeman.... 404/17 X 1,179,487 4/1916 Williams 404/17 X 1,193,918 8/1916 Obarr ..404/17X 1,262,048 4/1918 Hoffmaster 404/45 X 1,399,043 12/1921 Belknap 404/17 X 2,181,377 11/1939 Mabie 404/l7 X 2,225,828 12/1940 Godschall r 404/35 X 3,233,893 2/1966 Meyer 404/40 X Primary ExaminerNile C. Byers, Jr. Attorney, Agent, or Firm-Daniel Jay Tick 5 7 1 ABSTRACT A mobile collapsible ramp comprises a first plurality of blocks coupled to each other in a chain and removably affixed to the ground. A second plurality of blocks are coupled to each other in a chain and are removably affixed to the ground in spaced substantially parallel relation to the first plurality of blocks. Each of the blocks has a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel.
7 Claims, 9 Drawing Figures DESCRIPTION OF THE INVENTION:
The present invention relates to a mobile collapsible ramp. More particularly, the invention relates to a mobile collapsible personal boat ramp.
The principal object of the invention is to provide a mobile collapsible ramp which is of simple structure and is inexpensive in manufacture, is collapsed and positioned for use with rapidity, facility, ease and convenience, is easily and conveniently transported, and is utilizable as a personal boat ramp or a ramp for any suitable type of vehicle under any suitable circumstances.
In order that the invention may be readily carried into effect, it will now be described with reference to the accompanying drawing, wherein:
FIG. 1 is a perspective view of an embodiment of the mobile invention in use position;
FIG. 2 is a view of a pair of chains of blocks affixed to each other lengthwise;
FIG. 3 is a per spective view of an end block of the mobile collapsible ramp of the invention;
FIG. 4 is an end view of a block of the mobile collapsible ramp of the invention;
FIGS. 5 and 6 are end views of another embodiment of a block of the mobile collapsible ramp of the invention;
FIG. 7 is a view of part of a block of the mobile collapsible ramp of the invention and another embodiment of a fastening ring affixable thereto;
FIG. 8 is an end view of still another embodiment of a block of the mobile collapsible ramp of the invention; and
FIG. 9 is an end view of yet another embodiment of a block of the mobile collapsible ramp of the invention.
The mobile collapsible ramp of the invention comprises a first plurality of blocks 1, 2, 3, 4, and so on (FIG. 1). Each of the blocks has a substantially resilient undersurface 5 (FIG. 4) and an upper surface 6, 7, 8, 9, and so on, respectively (FIG. 1), for accommodating a vehicle wheel (not shown in the FIGS).
The first plurality of blocks 1, 2, 3, 4 and so on, are coupled to each other in a chain (FIG. 1) by any suitable means such as, for example, a rope 10 (FIG. 1) passing through a bore 11 (FIG. 4) formed through each block.
The first plurality of blocks 1, 2, 3, 4 and so on, are remobably affixed to the ground by any suitable means such as, for example, a substantially vertical bore 12 (FIG. 1) through each block or a ring member 13 (FIGS. 1 and 3) or 14 (FIG. 7) affixed to each block and extending from a side thereof. A spike 15 (FIGS. 1 and 3) is adapted to pass through the vertical bore 12 or the ring member 13 or 14 into the ground.
Each of asecond plurality of blocks 16, 17, 18, and so on (FIG. 1), has a substantially resilient undersurface 5 (FIG. 4) and an upper surface 19, 20, 21, and so on, respectively (FIG. 1 for accommodating a vehicle wheel (not shown in the FIGS.)
The second plurality of blocks 16, 17, 18, and so on, are coupled to each other in a chain (FIG. 1) by any suitable means such as, for example, a rope 22 (FIG. 1) passing through a bore 11 (FIG. 4) formed through each block.
2 The second plurality of blocks 16, 17, 18 and so on,
are removably affixed to the ground by any suitable means such as, for example, a substantially vertical bore 23 (FIG. 1) through each block or a ring member 24 (FIG. 1) or 14 (FIG. 7) affixed to each block and extending from a side thereof. A spike 25 (FIG. 1) is adapted to pass through the vertical bore 23 or the ring member 24 or 14 into the ground.
The first and second plurality of blocks are fastened to the ground in spaced substantially parallel relation, as shown in FIG. 1.
The upper surface of each block may be concave, as shown in FIGS. 1, 3 and 4, or may be divided into separate surfaces, as shown in FIGS. 5, 6 and 9. In the embodiment of FIGS. 5 and 6, the separate surfaces 26 and 27, and 26 and 27 are on two different levels above the ground. In the embodiment of FIG. 9, each block has a median divider 28 projecting above the upper surface between the two surfaces 29 and 30.
In the embodiment of FIGS. 5 and 6, the wheels 31 and 32 of a trailer may be accommodated on the surfaces 26 and 26, and the wheels 33 and 34 of a towing vehicle may be accommodated on the surfaces 27 and 27'.
In the embodiment of FIG. 8, each of the undersurface 35 and the upper surface 36 is concave.
FIG. 2 shows two chains of blocks 37 and 38 affixed to each other lengthwise. A wedge 39 may be placed between the chains to level the depression formed by the sloped ends of the end blocks of said chains.
I claim:
1. A mobile collapsible ramp, comprising a first plurality of blocks each having a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel, each of the blocks having a bore formed therethrough;
first rope means passing through the bores and coupling the first plurality of blocks to each other in a chain;
first fastening means removably affixing the first plurality of blocks to the ground;
a second plurality of blocks each having a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel, each of the blocks having a bore formed therethrough;
second rope means passing through the bores and coupling the second plurality of blocks to each other in a chain; and
second fastening means remova'bly affixing the second plurality of blocks to the ground in spaced substantially parallel relation to the first plurality of blocks.
2. A mobile collapsible ramp as claimed in claim 1, wherein each of the first and second fastening means comprises a ring member affixed to each block and extending from a side thereof and a spike adapted to pass through the ring member into the ground.
3. A mobile collapsible ramp as claimed in claim 2, wherein the upper surface of each block is concave.
4. A mobile collapsible ramp as claimed in claim 2, wherein the upper surface of each block is divided into separate surfaces.
5. A mobile collapsible ramp as claimed in claim 4, wherein the separate surfaces are on two different levels above the ground.
3,820,912 3 4 6. A mobile collapsible ramp as claimed in claim 4, of blocks and the second plurality of blocks to each wherein each block has a median divider projecting other and maintaining a Specific distance between above the upper surface between the two surfaces.
7. A mobile collapsible ramp as claimed in claim 4, themfurther comprising tie means affixing the first plurality 5

Claims (7)

1. A mobile collapsible ramp, comprising a first plurality of blocks each having a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel, each of the blocks having a bore formed therethrough; first rope means passing through the bores and coupling the first plurality of blocks to each other in a chain; first fastening means removably affixing the first plurality of blocks to the ground; a second plurality of blocks each having a substantially resilient undersurface and an upper surface for accommodating a vehicle wheel, each of the blocks having a bore formed therethrough; second rope means passing through the bores and coupling the second plurality of blocks to each other in a chain; and second fastening means removably affixing the second plurality of blocks to the ground in spaced substantially parallel relation to the first plurality of blocks.
2. A mobile collapsible ramp as claimed in claim 1, wherein each of the first and second fastening means comprises a ring member affixed to each block and extending from a side thereof and a spike adapted to pass through the ring member into the ground.
3. A mobile collapsible ramp as claimed in claim 2, wherein the upper surface of each block is concave.
4. A mobile collapsible ramp as claimed in claim 2, wherein the upper surface of each block is divided into separate surfaces.
5. A mobile collapsible ramp as claimed in claim 4, wherein the separate surfaces are on two different levels above the ground.
6. A mobile collapsible ramp as claimed in claim 4, wherein each block has a median divider projecting above the upper surface between the two surfaces.
7. A mobile collapsible ramp as claimed in claim 4, further comprising tie means affixing the first plurality of blocks and the second plurality of blocks to each other and maintaining a specific distance between them.
US00305524A 1972-11-10 1972-11-10 Mobile collapsible ramp Expired - Lifetime US3820912A (en)

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938904A (en) * 1974-02-01 1976-02-17 Toshiki Nishiyama Passage structures for use in acquiring the techniques for driving motor cycles
US4490069A (en) * 1982-03-03 1984-12-25 Cushman Robert P Portable highway warning apparatus
FR2610955A1 (en) * 1987-02-13 1988-08-19 Lecloux Robert Method for producing roadways to be unrolled on the ground and track element for its implementation
DE3728562A1 (en) * 1987-08-27 1989-03-16 Armo Bauelemente Directing device for non-railborne wheeled vehicles, in particular motor vehicles, with free steering
US4964751A (en) * 1987-04-09 1990-10-23 Handbury Limited Duckboard
US5118542A (en) * 1990-08-13 1992-06-02 Mcleod Warren H Assembly of articulated members for forming a surface
US5287580A (en) * 1990-12-21 1994-02-22 Nelson Steven H Folding portable ramp
US5325558A (en) * 1993-10-04 1994-07-05 Labreche Brent J Wheelchair ramp apparatus
US5457837A (en) * 1994-01-21 1995-10-17 Zuckerbrod; Pamelia Portable tracks for a wheelchair
US5527128A (en) * 1995-05-26 1996-06-18 Portapath International Limited Ground covering
US6551016B2 (en) * 2001-03-27 2003-04-22 John Kevin Guidon Paver Guid-on system
US20030214117A1 (en) * 2002-05-17 2003-11-20 Steins Karl M. Collapsible trailer
FR2874940A1 (en) * 2004-09-03 2006-03-10 Georges Martin Seng Prefabricated plates for constructing e.g. pedestrian path, have ribs inlaid in soil to anchor plates that are concave and convex at respective ends to connect plates such that plates` axes form angle between specific degrees
US20060070314A1 (en) * 2004-10-06 2006-04-06 Connor Sport Court Int'l., Inc. Tile with multiple-level surface
US20070044412A1 (en) * 2003-06-24 2007-03-01 Forster Cheryl M Interlocking floorboard tile system and method of manufacture
WO2007096490A1 (en) * 2006-02-21 2007-08-30 Georges Seng Plates intended to be laid flat on the ground to construct pathways and roadways
US20070266667A1 (en) * 2006-05-17 2007-11-22 Antonio Rapaz Multi-purpose construction module
US20080235886A1 (en) * 2006-10-13 2008-10-02 Zhongrong Yang Ramp-platform device and an on-board relocatable vehicle inspection system having the same
US20100247984A1 (en) * 2009-03-27 2010-09-30 Sanyo Electric Co., Ltd. Sealed cell
US7849642B2 (en) 2004-03-12 2010-12-14 Connor Sport Court International, Inc. Tile with wide coupling configuration and method for the same
US8166593B1 (en) * 2009-01-28 2012-05-01 Trauernicht Catharine W Stabilizing system
US8407951B2 (en) 2004-10-06 2013-04-02 Connor Sport Court International, Llc Modular synthetic floor tile configured for enhanced performance
US8596023B2 (en) 2004-02-25 2013-12-03 Connor Sport Court International, Llc Modular tile with controlled deflection
US10179979B1 (en) 2017-07-12 2019-01-15 Tidy Site Services, LLC Bridge span and methods of moving a bridge span
US20210087760A1 (en) * 2018-03-30 2021-03-25 Traffix Devices, Inc. Modular travel warning strip system and methods
US11414822B2 (en) * 2018-03-30 2022-08-16 Traffix Devices, Inc. Modular travel warning strip system and methods

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938904A (en) * 1974-02-01 1976-02-17 Toshiki Nishiyama Passage structures for use in acquiring the techniques for driving motor cycles
US4490069A (en) * 1982-03-03 1984-12-25 Cushman Robert P Portable highway warning apparatus
FR2610955A1 (en) * 1987-02-13 1988-08-19 Lecloux Robert Method for producing roadways to be unrolled on the ground and track element for its implementation
US4964751A (en) * 1987-04-09 1990-10-23 Handbury Limited Duckboard
DE3728562A1 (en) * 1987-08-27 1989-03-16 Armo Bauelemente Directing device for non-railborne wheeled vehicles, in particular motor vehicles, with free steering
US5118542A (en) * 1990-08-13 1992-06-02 Mcleod Warren H Assembly of articulated members for forming a surface
US5287580A (en) * 1990-12-21 1994-02-22 Nelson Steven H Folding portable ramp
US5325558A (en) * 1993-10-04 1994-07-05 Labreche Brent J Wheelchair ramp apparatus
US5457837A (en) * 1994-01-21 1995-10-17 Zuckerbrod; Pamelia Portable tracks for a wheelchair
US5527128A (en) * 1995-05-26 1996-06-18 Portapath International Limited Ground covering
US6551016B2 (en) * 2001-03-27 2003-04-22 John Kevin Guidon Paver Guid-on system
US20030214117A1 (en) * 2002-05-17 2003-11-20 Steins Karl M. Collapsible trailer
US20070044412A1 (en) * 2003-06-24 2007-03-01 Forster Cheryl M Interlocking floorboard tile system and method of manufacture
US8955268B2 (en) 2004-02-25 2015-02-17 Connor Sport Court International, Llc Modular tile with controlled deflection
US8596023B2 (en) 2004-02-25 2013-12-03 Connor Sport Court International, Llc Modular tile with controlled deflection
US7849642B2 (en) 2004-03-12 2010-12-14 Connor Sport Court International, Inc. Tile with wide coupling configuration and method for the same
FR2874940A1 (en) * 2004-09-03 2006-03-10 Georges Martin Seng Prefabricated plates for constructing e.g. pedestrian path, have ribs inlaid in soil to anchor plates that are concave and convex at respective ends to connect plates such that plates` axes form angle between specific degrees
US8407951B2 (en) 2004-10-06 2013-04-02 Connor Sport Court International, Llc Modular synthetic floor tile configured for enhanced performance
US20060070314A1 (en) * 2004-10-06 2006-04-06 Connor Sport Court Int'l., Inc. Tile with multiple-level surface
US8397466B2 (en) 2004-10-06 2013-03-19 Connor Sport Court International, Llc Tile with multiple-level surface
WO2007096490A1 (en) * 2006-02-21 2007-08-30 Georges Seng Plates intended to be laid flat on the ground to construct pathways and roadways
US20070266667A1 (en) * 2006-05-17 2007-11-22 Antonio Rapaz Multi-purpose construction module
US20080235886A1 (en) * 2006-10-13 2008-10-02 Zhongrong Yang Ramp-platform device and an on-board relocatable vehicle inspection system having the same
US8060965B2 (en) * 2006-10-13 2011-11-22 Nuctech Company Limited Ramp-platform device and an on-board relocatable vehicle inspection system having the same
US8207502B2 (en) 2006-10-13 2012-06-26 Nuctech Company Limited On-board relocatable vehicle inspection system having ramp-platform device
US8166593B1 (en) * 2009-01-28 2012-05-01 Trauernicht Catharine W Stabilizing system
US20100247984A1 (en) * 2009-03-27 2010-09-30 Sanyo Electric Co., Ltd. Sealed cell
US10179979B1 (en) 2017-07-12 2019-01-15 Tidy Site Services, LLC Bridge span and methods of moving a bridge span
US20210087760A1 (en) * 2018-03-30 2021-03-25 Traffix Devices, Inc. Modular travel warning strip system and methods
US11414822B2 (en) * 2018-03-30 2022-08-16 Traffix Devices, Inc. Modular travel warning strip system and methods
US11535993B2 (en) * 2018-03-30 2022-12-27 Traffix Devices, Inc. Modular travel warning strip system and methods
US11773546B2 (en) 2018-03-30 2023-10-03 Traffix Devices, Inc. Modular travel warning strip system and methods

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