US3371604A - Blasting mat - Google Patents

Blasting mat Download PDF

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Publication number
US3371604A
US3371604A US553213A US55321366A US3371604A US 3371604 A US3371604 A US 3371604A US 553213 A US553213 A US 553213A US 55321366 A US55321366 A US 55321366A US 3371604 A US3371604 A US 3371604A
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US
United States
Prior art keywords
mat
tubes
blasting
wire
mats
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
US553213A
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English (en)
Inventor
Per Folke Wikner
Knut Lundgren
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.)
JOHANNES HANS UDO ELBERT SPEER
Original Assignee
JOHANNES HANS UDO ELBERT SPEER
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 JOHANNES HANS UDO ELBERT SPEER filed Critical JOHANNES HANS UDO ELBERT SPEER
Application granted granted Critical
Publication of US3371604A publication Critical patent/US3371604A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
    • F42D5/045—Detonation-wave absorbing or damping means
    • F42D5/05—Blasting mats

Definitions

  • the present invention relates to a blasting mat of the type which, after placing an explosive charge, is used to cover the site at which the charge has been laid so as to dampen the subsequent detonation waves and prevent the spreading of rock splinters or other debris.
  • Blasting mats for this purpose have almost exclusively been formed of motor tires cut up into required lengths.
  • blasting mats hitherto used are very easily destroyed by the blast and usually last no longer than one or two blasting operations, thus involving high expenses.
  • mats of this type are ditficult to handle and it is the usual practice to employ mechanical excavating machines or the like to move said mats, which is naturally both a drawback and inconvenient.
  • the object of the invention is to eliminate these drawbacks and is mainly characterized in that the blasting mat is constructed of a number of adjacently lying tubes or hoses joined together by means of Wire which passes through the tubes etc.; reinforcing and binding the same together.
  • FIGURE 1 is a perspective view of one end of a blasting mat according to the invention formed of two adjacently positioned mat sections.
  • FIGURE 2 shows in plan view a method of connecting together two mats or mat sections according to the invention.
  • FIGURE 3 is a view seen from one end of the mat and illustrates the method of operation of the mat during the blasting operation.
  • FIGURE 5 is a partial perspective view of a blasting mat according to the present invention, with spacers being interposed between adjacent tubes.
  • FIGURE 1 shows in perspective a blasting mat constructed in accordance to the invention.
  • the shown mat is, for instance, built up of two mat sections placed side-by-side and indicated by atent A and B.
  • Each of these sections is formed of a number of tubes 1 and 2, which in the shown example lie closely adjacent to each other.
  • spacers 20 for the purpose, as shown in FIGURE 5.
  • wire-holes are drilled at specific distances from the ends of the tubes 1 and 2, substantially diametrically through said tubes; after which wire slings 3 and 4 are passed through said holes, and the end portions 5, 6 and 7, 8 respectively of said slings, subsequent to tightening said wire, are locked together, for instance, by means of wire locks indicated by reference numerals 18 and 9 respectively. It is often sufficient to use only one wire sling through each mat section but there is nothing to prevent several separate or possibly snake-like continuous wire slings, being used to retain the tubes in their mat section.
  • FIGURE 2 which is substantially the same as FIGURE 1 except that the reinforcing wire 11 of the mat section A only passes through the tube 1 in this section while wire 12 passes through the tube 2 in the adjacent lying mat section B.
  • the bends, situated substantially opposite each other, in the Wires of each wire reinforcement 11 and 12 are woven or bound together, for instance by means of an additional wire 13 threaded in said bend.
  • One of the objects of the invention is to manufacture blasting mats which are easy to handle. It is also important that the tubes are manufactured of a material capable of resisting the enormous forces which appear during the explosion. Furthermore, this material should at least have a certain degree of flexibility if the mat is to function in the manner desired.
  • FIGURE 3 shows a blasting mat at the instance of blasting; the tubes 1 and 2 in sections A and B (in FIGURE 3) together forming a knee 14 as a result of the blasting effect, represented by the arrows C.
  • the ends 15 and 16 respectively of the tubes are displaced into each other giving a locking effect.
  • the invention otters yet another advantage against the status of the art in that the mat according to the invention can be rolled up in a simple manner, as is illustrated diagrammatically in an end view in FIGURE 4. It should be further noted that such a mat can be both easily rolled up or pulled over the ground, something which is most difficult to do with the previously known blasting mats. The weight of the mat can be easily determined by adjusting the thickness of the wires as well as of the tube Wall.
  • a blasting mat comprising at least one row of tubes extending parallel to each other in each row; at least one rope passing longitudinally through each tube in a tortuous path and transversely through the Walls of said tubes to form a reinforcing rope network lock; said tubes being resilient and lying closely adjacent to one another, and said lock loosely binding said tubes together so that, during blasting, a vent is formed between adjacent tubes for passage of gas and air, while solid debris is retained under said mat.
  • a blasting mat as claimed in claim 1 wherein a plurality of rows of tubes are arranged unidirectionally side by side, and wherein a separate securing rope is passed in loops through all the tubes in each row of tubes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Revetment (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Soil Working Implements (AREA)
US553213A 1965-05-31 1966-05-26 Blasting mat Expired - Lifetime US3371604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7059/65A SE301780B (xx) 1965-05-31 1965-05-31

Publications (1)

Publication Number Publication Date
US3371604A true US3371604A (en) 1968-03-05

Family

ID=20270305

Family Applications (1)

Application Number Title Priority Date Filing Date
US553213A Expired - Lifetime US3371604A (en) 1965-05-31 1966-05-26 Blasting mat

Country Status (10)

Country Link
US (1) US3371604A (xx)
AT (1) AT270394B (xx)
DE (1) DE1571268C3 (xx)
DK (1) DK113003B (xx)
ES (1) ES327293A1 (xx)
FI (1) FI48953C (xx)
FR (1) FR1482307A (xx)
GB (1) GB1115421A (xx)
NO (1) NO117357B (xx)
SE (1) SE301780B (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793953A (en) * 1971-08-31 1974-02-26 Sudbury Blasting Mats Ltd Blasting mat
US3814016A (en) * 1973-03-22 1974-06-04 Burlington Industries Inc Bomb suppression device
US3943853A (en) * 1973-03-06 1976-03-16 Thomas Alexander Robertson Blasting mats
US4132171A (en) * 1974-11-04 1979-01-02 Pawlak Daniel E Apparatus for detonating an explosive charge
US4315463A (en) * 1980-02-05 1982-02-16 Arcand Leo H Blasting mat
US5482754A (en) * 1994-07-29 1996-01-09 Crook; Carol A. Multi-layer rubber mat
US20050188825A1 (en) * 2003-07-31 2005-09-01 Blast Gard International Explosive effect mitigated containers
US20050242093A1 (en) * 2003-07-31 2005-11-03 Blast Gard International Explosive effect mitigated containers and enclosing devices
US8573125B1 (en) 2012-07-13 2013-11-05 Blast Control Systems, L.L.C. Blast control blanket
CN103900431A (zh) * 2014-04-23 2014-07-02 大连经济技术开发区金源爆破工程有限公司 基坑爆破降尘防飞石装置及其防护方法
US10739121B2 (en) * 2018-04-24 2020-08-11 B2B Industrial Inc. Blasting mat and method of manufacturing same
US11585647B2 (en) 2020-08-20 2023-02-21 B2B Industrial Inc. Low density blasting mat and method of utilizing same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926605A (en) * 1958-09-23 1960-03-01 Jr James R Hammel Blasting mats

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926605A (en) * 1958-09-23 1960-03-01 Jr James R Hammel Blasting mats

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793953A (en) * 1971-08-31 1974-02-26 Sudbury Blasting Mats Ltd Blasting mat
US3943853A (en) * 1973-03-06 1976-03-16 Thomas Alexander Robertson Blasting mats
US3814016A (en) * 1973-03-22 1974-06-04 Burlington Industries Inc Bomb suppression device
US4132171A (en) * 1974-11-04 1979-01-02 Pawlak Daniel E Apparatus for detonating an explosive charge
US4315463A (en) * 1980-02-05 1982-02-16 Arcand Leo H Blasting mat
US5482754A (en) * 1994-07-29 1996-01-09 Crook; Carol A. Multi-layer rubber mat
US20070006723A1 (en) * 2003-07-31 2007-01-11 Waddell John L Jr Acoustic shock wave attenuating assembly
US20050242093A1 (en) * 2003-07-31 2005-11-03 Blast Gard International Explosive effect mitigated containers and enclosing devices
US20050188825A1 (en) * 2003-07-31 2005-09-01 Blast Gard International Explosive effect mitigated containers
US7343843B2 (en) 2003-07-31 2008-03-18 Blast Gard International Explosive effect mitigated containers and enclosing devices
US7520223B2 (en) 2003-07-31 2009-04-21 Blastgard Technologies, Inc. Explosive effect mitigated containers
US8316752B2 (en) 2003-07-31 2012-11-27 Blastgard Technologies, Inc. Acoustic shock wave attenuating assembly
US8573125B1 (en) 2012-07-13 2013-11-05 Blast Control Systems, L.L.C. Blast control blanket
CN103900431A (zh) * 2014-04-23 2014-07-02 大连经济技术开发区金源爆破工程有限公司 基坑爆破降尘防飞石装置及其防护方法
US10739121B2 (en) * 2018-04-24 2020-08-11 B2B Industrial Inc. Blasting mat and method of manufacturing same
US11585647B2 (en) 2020-08-20 2023-02-21 B2B Industrial Inc. Low density blasting mat and method of utilizing same

Also Published As

Publication number Publication date
GB1115421A (en) 1968-05-29
AT270394B (de) 1969-04-25
DE1571268C3 (de) 1974-11-07
DE1571268A1 (de) 1970-12-10
ES327293A1 (es) 1967-03-16
SE301780B (xx) 1968-06-24
DE1571268B2 (de) 1974-03-28
FI48953B (xx) 1974-10-31
FI48953C (fi) 1975-02-10
FR1482307A (fr) 1967-05-26
NO117357B (xx) 1969-08-04
DK113003B (da) 1969-02-10

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