US3371604A - Blasting mat - Google Patents
Blasting mat Download PDFInfo
- 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
- Authority
- 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
Links
- 238000005422 blasting Methods 0.000 title description 30
- 239000000463 material Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241000428198 Lutrinae Species 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Images
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7059/65A SE301780B (fi) | 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 (fi) |
AT (1) | AT270394B (fi) |
DE (1) | DE1571268C3 (fi) |
DK (1) | DK113003B (fi) |
ES (1) | ES327293A1 (fi) |
FI (1) | FI48953C (fi) |
FR (1) | FR1482307A (fi) |
GB (1) | GB1115421A (fi) |
NO (1) | NO117357B (fi) |
SE (1) | SE301780B (fi) |
Cited By (12)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2926605A (en) * | 1958-09-23 | 1960-03-01 | Jr James R Hammel | Blasting mats |
-
1965
- 1965-05-31 SE SE7059/65A patent/SE301780B/xx unknown
-
1966
- 1966-05-16 NO NO163032A patent/NO117357B/no unknown
- 1966-05-24 FI FI661361A patent/FI48953C/fi active
- 1966-05-25 DK DK266666AA patent/DK113003B/da unknown
- 1966-05-26 US US553213A patent/US3371604A/en not_active Expired - Lifetime
- 1966-05-27 AT AT507466A patent/AT270394B/de active
- 1966-05-27 FR FR63348A patent/FR1482307A/fr not_active Expired
- 1966-05-28 DE DE1571268A patent/DE1571268C3/de not_active Expired
- 1966-05-28 ES ES327293A patent/ES327293A1/es not_active Expired
- 1966-05-31 GB GB24283/66A patent/GB1115421A/en not_active Expired
Patent Citations (1)
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)
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 (fi) | 1968-06-24 |
DE1571268B2 (de) | 1974-03-28 |
FI48953B (fi) | 1974-10-31 |
FI48953C (fi) | 1975-02-10 |
FR1482307A (fr) | 1967-05-26 |
NO117357B (fi) | 1969-08-04 |
DK113003B (da) | 1969-02-10 |
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