CA2181968A1 - Latex prophylactics adhered to a deformed knitted fabric and their manufacturing procedure - Google Patents
Latex prophylactics adhered to a deformed knitted fabric and their manufacturing procedureInfo
- Publication number
- CA2181968A1 CA2181968A1 CA002181968A CA2181968A CA2181968A1 CA 2181968 A1 CA2181968 A1 CA 2181968A1 CA 002181968 A CA002181968 A CA 002181968A CA 2181968 A CA2181968 A CA 2181968A CA 2181968 A1 CA2181968 A1 CA 2181968A1
- Authority
- CA
- Canada
- Prior art keywords
- fabric
- prophylactic
- condom
- adhered
- bands
- 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.)
- Abandoned
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A procedure for the manufacturing of an improved condom features a knitted fabric adhered to the condom.
The fabric is deformed in a longitudinal sense in relation to its axle, by means of a system through which the fabric, in the shape of a tube, is introduced into a cone. Two parallel conveyor bands with fastening devices are adhered to the fabric. Once the fabric is cut through in the middle of both bands, it is conveniently guided onto the condom matrixes where elastomeric rings deform and fit it tight, The whole set thus thus is ready to be dipped into an adhesive coating and later dried after which drying, electrically heated metallic rings cut away the remainder of the fabric that failed to adhere to the condom. Thus the latter is rolled and readied for packaging.
The fabric is deformed in a longitudinal sense in relation to its axle, by means of a system through which the fabric, in the shape of a tube, is introduced into a cone. Two parallel conveyor bands with fastening devices are adhered to the fabric. Once the fabric is cut through in the middle of both bands, it is conveniently guided onto the condom matrixes where elastomeric rings deform and fit it tight, The whole set thus thus is ready to be dipped into an adhesive coating and later dried after which drying, electrically heated metallic rings cut away the remainder of the fabric that failed to adhere to the condom. Thus the latter is rolled and readied for packaging.
Description
'~ 2 ~ 68 ~ ~ v~ in latex prophylactics a~red to a Ae-f-- - a knitt~d fabric and th~ir 3~uf ~::tusing y~vc~
Fl~ld o~ th~ Inv~nt~Qn The present invention re~er~ to a prophylactic having a knitted fabric adhered to it from it~ clo6ed end. The fabric is de~ormed in a lonsitudinal ~ensc in relation to 5 its axi~. This makes the condom highly resistant and reli~ble, fP~tl~rin~ great practical advantage~. The ~n--~A~tUring procedure for the prophylactic of the present invention is ~180 ~ ;1P~ be~ow.
Ba~ç~rQuud of the :~:nv~ntion Condoms made out of latex or other in-kind elastomeric material are known in the market, ali of which have heen notoriou~ly and definitely irnproved by the subject matter of the pres~nt inve~tion. It consists of the i~troduction, during the condom ' ~ manuf ~cturing stage, of a layer of 15 knitted ~ab~ic, deformed in a longitudinal sen~e in relation to the condom'~ ~xis, ~7hich iB preferably capab~e o~ avoiding lon~itudinal st~etching and permitting tLall~v~:L~al elasticity, thus decreasing almost to ~ero the chance~ of tearin~.
20 O~ t8 8nd .~~ 'ry C~ th~ Inv~ntion .~lth~ h it i5 true that it ~ee~s apparently easy to introduce this knitted fa~ric, practice has proven chat _ _ , . _ complex means must be dealt with to obtain the best results in the procedure ~or the present invention of the improved product referred to above. It is ~c~ ry to develop the followi~g ~oc6du. ~ t~; 1 ed below, consisting basically 5 in the manufact--rln~ of a machine that bear~ a rectangular structure at which vertexes, by means of axles and rin~s, pinions revolve and in turn move a flapped chai~
that carries supports, at which end~ there are hubs within ~hich axles slide. The axles have the condom matrixes 10 attached to one of their ends and at the other end they bear sliding devices which act on cams. It should be i7ed that the knitted fabric in the shape of a tube i8 i~troduced into a cone, where two parallel conveyor ~ands having fa~tQning devices adhere to the fabric. o~ce lS the fabric is cut t~rough the middle of both conveyor bands it i8 guided and placed over the condom matrixes. The axles where th~ condom matrixe~ :~re attached to slide do~nwards, introducing themselves into the elastomeric rings whic~ are located in compar~ment~ fixed to a chain, 20 which is parallel, and cooperates with the previously r ~ ed flapped chain. The elastomeric rings fix the fabric tight to the prophylactic. The fabric is cut at a line above the elastomeric ring to allow the condom matrix, upon ~liding upwards, to take along the whole set including 25 the prophylactic, the de~ormed fastened ~abric, and the elastomeric ring, and thus free it~el~ from the ring carrier chain. The set i5 then dipped into an adhesive coating ~nd later placed in an oven for drying. The left ~ 2181968 over portio~ oL unul;ed fabrlc i3 then cut atoay and the elastomeric ~ing withdrawn. The prophylac~ic is then withdrawn ~rom the co~dom matrix to be te~ted as usual, rolled ap, ~;11co~ d and pa ~ed.
.' ~ 2181968 D~riPtion of D~winas Figure 1 is a ~3ide elevational view of a prophylactic eondom being formed in accordance with the pre~ent invention;
s S~i~ure lA is a close up view of t~Se weaYe of the, prophylactic condom as in Figure l;
F~gure 2 is a plan view of an apparatus forming a plurality of prophylactic condoms, such as the condom in Fig. 1;
Figure ~ i8 a ~ide view of the apparatus ~or forming a plurality of prophylactic condoms as in Fig. 2;
Fig~-sre 3A is a close up view of the weave o~ a fabric used in making th~ condom as in Fig . 1, bef ore the prophylactic fa'~ric is longitv~;n~lly stretched in accoL~l~ss~ee with the pre~ent invention;
Figure 33 i~ a close up view of the weave of a ~abric used iIl makin~ the prophylactic condom as in Fig. 1, after the fabric is longitu~;nA~ly stretched in accordance with the prese~t invention;
Figure 4 i8 a ~ide elevational view of the prophylaetic corsd~m made in accordance with the pre~ent invention;
S~igure 4A is a close up view of the weave of a fa~ric used in making the proFhylactic condom as in ~ig. 4, after the fabric i3 l~7n~7itl~;ns~lly stretched in accordance with the present invention;
Figure S is a side elevational view of the ~ . 2181q68 prophylactic condom o~ the present invention, shown with ~abric adhered thereto;
~igure sA is a clo~e up view o~ the weave o~ the prophylactic co~dom as in Fig. 5;
Fig 6 i9 a side elevational view of an alternate S ' :!Al-- - for an apparatus for making a prophylactic condom in accordance with the preserLt invention;
Fig. 7 is a side view of the prophylactic condom being formed in accordance with ~he alternate ' ~;m~nt as in Fig . 6 i Fig. 7A is a close up view o~ the weave of the ~abric o~ the prophylactic condom as in Fig. 6;
Fig. 7B is a close up side s~c~ n~l vlew of the prophylactic condom a6 in Fig. 6;
Fig. 8 i9 a top plan view of the alternate ~
for the ~rparatl~ for making a prophylactic condom as in Fig 6 i Fig. 9 is a top plan ~iew of the cone portion of the apparatus as in Figs. 6 ~ 8;
Fig. lo i8 a side view of the apparatus as in Figs. 6, 8 and 9;
Fig. lOA is a close up view of the weave o~ the fabric a~ ~n the alternate ~mho~ ~ for the condom as in Fig. 6, , before longitudinal stretching of the fabric;
Fig. loB is a close up view of the weave of the fabric as in the alternate ~mhodi~~nt for the condom as in Fig. 6, after longit~inal stretching of the fabric.
~ 2181968 D~t~iled D~33cript~02~ of th~ Drawin~~
It is noted that Figure3 1-5 ~how ~he preferred t of the pre~ent invention. Moreover, Figures 6-lO
show an alter~ate ~ ';r ~ for providing a prophylactic in accordance with the present invention.
Figure l is a 3ide Yiew showin~ the condom matrix (l) Re~erence numeral (la~ 3how3 the prophylactic placed over the condom matrix. Re~erence numeral ~2) show3 the axle 10 whe~e the condom matrix is attached to, and refe::ence numeral ~3) ~how3 the hubs within which the axle ~2) slide~. Reference numeral ~4~ show~ carrier set for the hubs (3), which i8 fa~tened, through screw3 ~5), to the chain (6) by means of flaps (6a). Pinions ~7) move the 15 chain (6). Wheel ~8) hold3 the carrier set (4~ in a horizontal position. Re~erence numerai (9) shows the wheel restin3 on the cams ~10) thu~ allowing the axle (2~ to ~lide. Reference nume~al ~ hows the two conveyor band~
having an adhering ~urfac~ to which the fabric (12) becomes 20 fixed. Reference numeral (13) shows the ~lapped carrier chain which, ~y mean~ of screws ~14), i8 fastened to the ~et ~15~ which in turn carrie~ an elastomeric ring ~16).
Pigure lA shows the ~abric (F) deformed in a longitudinal 3ense in relation to the axle o~ the condom 2 5 mat~ix .
Figure 2 i~ a plan vi~w showing the chain (6) carrying the carrier ~ets (4), where the condom matrixes with their corresponding hub~, axles, cam~ and wheels are found.
_ _ . _ _ . , . _ . . _ . . . _ _ .
~- 2181968 Refere~ce character tC~ shows th~ pinionE~ that move tha chain (6) . Chain (13) bears the ela itomeric ring carrier sets. Re~erence nurneral (14) represents the adh~sive coating. Reference character ~G~ show~ the oven used for 5 drying . Reference character tX~ shows the f irst cutting device uqed to separate the unused remains of the fabric that cover~ the prophylactic, which is placed on the corresponding condom matrix. ~nother clltting device (Xl)' perfo~Tns the cutting of fabric one mi ~ l irl ~er above the 10 ~lhP~i~ line in order to di~pose of the grcate~t possible amount of fabric not adhered to the condom. Pinions (~a~
move the chairl (13~. Roller (B~ regulates the height of the cU~ yuL ~ands (1l~. Rollers (20) mOVe the bands (ll).
Zone ~'A~' show~ where the ela~tomeric rirg as well as the 15 ~in; Rh~d condom are withdrawn. Zone "B" qhows wherc the prophylactic is placed on the condom matrix, Zone "C"
~hows the place where the el~stomeric ring~ (16) are once again placed within the ~et (15).
Figure 3 iq a side view showing ~he fabric (l9) as it 20 enter3 into the cone (D). The fabric ~l9) adheres to the cor.v.:yul bands (11~, and i~ then CUt along the rl~iddle of both bands ~18). Rollers ~20~ mo~e the co~v~yor band~
, which band~ ) in tu~n carry the ~abric ~19) towards a co~venient position on the condom rnatrixes, ac 25 can be appreciated by the drawing. Roller (B~ iq used to re~ulate the conveyor bands ~ 80 that the knitted fabric ca~ hold on tight, deform itself and re~t on the prophylactic. Chain ~13~ hold~ the el~stomeric ring , _ _ _ _ _ _ _ ,, , ., ,, . , .. , _ _ , . , . _, , , _ , _ ~ 2t81968 carriers (7). ~inions (7a) move the chain (13~. Wheel~
(9) act on the cam (10) 90 that the prophylactic, which is placed on the condom matrix and covered by the knitted fa}:ric, may slide ~ . ds to introduce itself into the 5 elaseomeric ring chus keeping the ~abric (19) fastened to the condom. Reference numeral (16) shows the ela3tomeric ring at its best point in ~astening the fabric (19).
Refere~ce character (K) shows the complete illustration of the condom matrix, the ~abric ~19) and the elastomeric 10 ri~, which matrix slides upwards talcing along the el~ct~. - c ring (16) and detaches it~elf ~rom the chain and from the device that cnnt~in~ t~e ela~tomeric rings.
Re~erenc~ rh~r~rt~r (J) shows how the cam (10) moves ~pward~ so that the wh2el (9) can perform this operation.
15 First cutting device (X) is used to separate the ~, ;ning portion o~ the unused fabric and thus is able to separate the whole set from the co..v~y~ bands ~11). Two rollers ~Zl) are used to withdraw the unused rem~ins, adhered to the conveyor band3 (11).
~s is show~ in Figures 3A and 3B reference character (E) ~hows the fabric i~ its natural state as i~ enters into the cone (r)) and re~erence character ~F) shows the defor~ed ~abric already placed over the prophylactic.
Figure 4 i~ a side view showing the condom matrix (1), the axle (2), the ela6tomeric ring (16~, the parallel ~:C~v~:yvl bands ~11) which adh~re to the iabri~, the first cutting zone (X), and the de~ormed ~abric (F) placed over the condom. Reference numeral (la~ shows the prophylactic .. . ... ,, . , .. _, .. _ _ , , , ~ 2181968 placed on the condom matrix.
Figure 5 is a side view of the propbylactic already bearing the adhered fabric. Reference character ~F) showg an enlarged v~ew of the deforlned fabric.
While Figures 1-5 uhow the preferred .Qrnhorli - t, Figures 6-10 8how an alternate: '- r~ It for forming the prophylactic of the present invention.
For example, Figure 6 is a side~ view depicting a flapped chain ~1) which is fixed to a carrier plate (3~ by 10 Inean3 of a screw (2~. At the other end of the plate ~3) there i9 a wheel (4) that re~t~ on a support ~5) to ~-int~n horizontal stability. The axles are marked with le~te~ ~A), which s~ide on the plate ~3) where point~ (A1~
are present to hold tight and guide the convayor bands (B) 15 that at point ~B5) have fastening devices, such as VE~CR0~-type to hold the ~a~ric. At reiere~ce character (C~ there i6 ~hown the ~abric adhered tO point BS. Re~erence character ~D) ~hows the axles sliding on the plate (3) and at one o~ it~ ends there lies an elastomeric ring (D9~ used 20 to deform and ~it the fabric tight ~C) to the matrix (10), which i~ cov~red by the condom (11). Ther~ is al~o shown the axles (E) that slide on the plate (3) bearing, at one of its ends, a ring in the shape o~ a blade ~EG) which i~
electrically heated and ~s appropriate ~or cutting, by 25 means of heat temperature, the Ll in~r o~ the fabric ~hat did not ~dhere to t~e condom. Letter (J~ shows all the u~pport point~ of the sliaing axles that work in their own cams (F).
~' 2181968 ~ igure 7 is a side vlew ~howing that once the rod~
ha~re ~lid over to the bafie of the condom matrix ~10), carryillg the Cvl~Ve:yu~ band ~B) that has the fabric (C) fastened to it at point ~B5), it is maae ea6ier ~or the 5 elastomeric ring ~Dg) to deform and fit the faoric tight in a longit~dinal sen3e i~ relatio~ to the condom's axle (11).
In ~rame ~C1) there is 6hown the fabric thus de~ormed.
Figure ~ is a plan view that 3~0ws the ~lapped chain ~1) whic~l, by mean~ of 3crews (2~ fixe3 a plate (3~ at 10 which end the wheel (4~ acts t~po~ the tra~k (5~. These ~eatures are all moved by pinion3 ~15) located at both end~ ~igure 8 also shows two cuYlv~yur bands ~B) that rotate by means o~ the pulleys ~G) and rest on the cor~e ~R~
to adhere to the fabric through a fastening system ~B5).
Pigure 9 is a plan view of the cone (K~ where th~
fabric in the ahape o~ a tube i8 P~t:~rn~ y i~troduced.
~wo parallel conveyor bands ~B) that have fa~qt~nin~ de~iceQ
(BS) are adhered to the fabric. I~ the middls of both band6 there is provided a cutting device (~ which works 20 ~ t~ly after the fabric i6 adhere~ by the mentioned devices ~B5~. Figu~e 9 al~o shows how the ~;v~v~yu~ bands ~ B~ come apart to adequately locate themsslve3 on the matrixe6 .
Figure lo is a side ~riew in which is showr~ th~ c~ain 25 ~1~ mûved by the pinions (15~ that ca~ry the condom ~atrixes ~10) upon which the elastomeric rings (D9~, as well as ths c~tting ~lades (~G~, act. ~abric (C) i~ ~ho~n ., _ . . _ . _ _ _ _ _ _ .
~ 21~1968 being introduced into the cone (R). ~igure lO also shows th~ c~"veyo~ bands (B) that, through ~heir devices ~B5?, adhere to the fab~ic, which after beLng cut, i8 conveniently located on the condom matrixes (10) . Once the 5 ring~ (D9) do their job, the prophylactic i8 all introduced into the adhe~lve coat (12~ and later dried in the oven (l3~ . That part of the fabric which has not become adh~red to the condom is separated ~rom it by meanC o~ cylinder.~l shaped afi blades (EG), after which the c~linder~ ll4) take 10 away tlle ~ ;ning portion o~ fabric ~rom the machine~s c~rc~lit .
Pigur~ lOA show~ t~e fabric (C2) as it i~ introduced into the cone ~R) in its natural state. In Figure lOB, the ~a~ric ~Cl1 is ~hown deformed and fitted ti~htly to the 15 condom by the elastomeric ring ~D9).
Other modifications may be made to the present invention, ~ithout depar~ing from the scope o~ the i~e~eion, ~ Dc-e~d in th~ r~rp~d~d cla~
.
Fl~ld o~ th~ Inv~nt~Qn The present invention re~er~ to a prophylactic having a knitted fabric adhered to it from it~ clo6ed end. The fabric is de~ormed in a lonsitudinal ~ensc in relation to 5 its axi~. This makes the condom highly resistant and reli~ble, fP~tl~rin~ great practical advantage~. The ~n--~A~tUring procedure for the prophylactic of the present invention is ~180 ~ ;1P~ be~ow.
Ba~ç~rQuud of the :~:nv~ntion Condoms made out of latex or other in-kind elastomeric material are known in the market, ali of which have heen notoriou~ly and definitely irnproved by the subject matter of the pres~nt inve~tion. It consists of the i~troduction, during the condom ' ~ manuf ~cturing stage, of a layer of 15 knitted ~ab~ic, deformed in a longitudinal sen~e in relation to the condom'~ ~xis, ~7hich iB preferably capab~e o~ avoiding lon~itudinal st~etching and permitting tLall~v~:L~al elasticity, thus decreasing almost to ~ero the chance~ of tearin~.
20 O~ t8 8nd .~~ 'ry C~ th~ Inv~ntion .~lth~ h it i5 true that it ~ee~s apparently easy to introduce this knitted fa~ric, practice has proven chat _ _ , . _ complex means must be dealt with to obtain the best results in the procedure ~or the present invention of the improved product referred to above. It is ~c~ ry to develop the followi~g ~oc6du. ~ t~; 1 ed below, consisting basically 5 in the manufact--rln~ of a machine that bear~ a rectangular structure at which vertexes, by means of axles and rin~s, pinions revolve and in turn move a flapped chai~
that carries supports, at which end~ there are hubs within ~hich axles slide. The axles have the condom matrixes 10 attached to one of their ends and at the other end they bear sliding devices which act on cams. It should be i7ed that the knitted fabric in the shape of a tube i8 i~troduced into a cone, where two parallel conveyor ~ands having fa~tQning devices adhere to the fabric. o~ce lS the fabric is cut t~rough the middle of both conveyor bands it i8 guided and placed over the condom matrixes. The axles where th~ condom matrixe~ :~re attached to slide do~nwards, introducing themselves into the elastomeric rings whic~ are located in compar~ment~ fixed to a chain, 20 which is parallel, and cooperates with the previously r ~ ed flapped chain. The elastomeric rings fix the fabric tight to the prophylactic. The fabric is cut at a line above the elastomeric ring to allow the condom matrix, upon ~liding upwards, to take along the whole set including 25 the prophylactic, the de~ormed fastened ~abric, and the elastomeric ring, and thus free it~el~ from the ring carrier chain. The set i5 then dipped into an adhesive coating ~nd later placed in an oven for drying. The left ~ 2181968 over portio~ oL unul;ed fabrlc i3 then cut atoay and the elastomeric ~ing withdrawn. The prophylac~ic is then withdrawn ~rom the co~dom matrix to be te~ted as usual, rolled ap, ~;11co~ d and pa ~ed.
.' ~ 2181968 D~riPtion of D~winas Figure 1 is a ~3ide elevational view of a prophylactic eondom being formed in accordance with the pre~ent invention;
s S~i~ure lA is a close up view of t~Se weaYe of the, prophylactic condom as in Figure l;
F~gure 2 is a plan view of an apparatus forming a plurality of prophylactic condoms, such as the condom in Fig. 1;
Figure ~ i8 a ~ide view of the apparatus ~or forming a plurality of prophylactic condoms as in Fig. 2;
Fig~-sre 3A is a close up view of the weave o~ a fabric used in making th~ condom as in Fig . 1, bef ore the prophylactic fa'~ric is longitv~;n~lly stretched in accoL~l~ss~ee with the pre~ent invention;
Figure 33 i~ a close up view of the weave of a ~abric used iIl makin~ the prophylactic condom as in Fig. 1, after the fabric is longitu~;nA~ly stretched in accordance with the prese~t invention;
Figure 4 i8 a ~ide elevational view of the prophylaetic corsd~m made in accordance with the pre~ent invention;
S~igure 4A is a close up view of the weave of a fa~ric used in making the proFhylactic condom as in ~ig. 4, after the fabric i3 l~7n~7itl~;ns~lly stretched in accordance with the present invention;
Figure S is a side elevational view of the ~ . 2181q68 prophylactic condom o~ the present invention, shown with ~abric adhered thereto;
~igure sA is a clo~e up view o~ the weave o~ the prophylactic co~dom as in Fig. 5;
Fig 6 i9 a side elevational view of an alternate S ' :!Al-- - for an apparatus for making a prophylactic condom in accordance with the preserLt invention;
Fig. 7 is a side view of the prophylactic condom being formed in accordance with ~he alternate ' ~;m~nt as in Fig . 6 i Fig. 7A is a close up view o~ the weave of the ~abric o~ the prophylactic condom as in Fig. 6;
Fig. 7B is a close up side s~c~ n~l vlew of the prophylactic condom a6 in Fig. 6;
Fig. 8 i9 a top plan view of the alternate ~
for the ~rparatl~ for making a prophylactic condom as in Fig 6 i Fig. 9 is a top plan ~iew of the cone portion of the apparatus as in Figs. 6 ~ 8;
Fig. lo i8 a side view of the apparatus as in Figs. 6, 8 and 9;
Fig. lOA is a close up view of the weave o~ the fabric a~ ~n the alternate ~mho~ ~ for the condom as in Fig. 6, , before longitudinal stretching of the fabric;
Fig. loB is a close up view of the weave of the fabric as in the alternate ~mhodi~~nt for the condom as in Fig. 6, after longit~inal stretching of the fabric.
~ 2181968 D~t~iled D~33cript~02~ of th~ Drawin~~
It is noted that Figure3 1-5 ~how ~he preferred t of the pre~ent invention. Moreover, Figures 6-lO
show an alter~ate ~ ';r ~ for providing a prophylactic in accordance with the present invention.
Figure l is a 3ide Yiew showin~ the condom matrix (l) Re~erence numeral (la~ 3how3 the prophylactic placed over the condom matrix. Re~erence numeral ~2) show3 the axle 10 whe~e the condom matrix is attached to, and refe::ence numeral ~3) ~how3 the hubs within which the axle ~2) slide~. Reference numeral ~4~ show~ carrier set for the hubs (3), which i8 fa~tened, through screw3 ~5), to the chain (6) by means of flaps (6a). Pinions ~7) move the 15 chain (6). Wheel ~8) hold3 the carrier set (4~ in a horizontal position. Re~erence numerai (9) shows the wheel restin3 on the cams ~10) thu~ allowing the axle (2~ to ~lide. Reference nume~al ~ hows the two conveyor band~
having an adhering ~urfac~ to which the fabric (12) becomes 20 fixed. Reference numeral (13) shows the ~lapped carrier chain which, ~y mean~ of screws ~14), i8 fastened to the ~et ~15~ which in turn carrie~ an elastomeric ring ~16).
Pigure lA shows the ~abric (F) deformed in a longitudinal 3ense in relation to the axle o~ the condom 2 5 mat~ix .
Figure 2 i~ a plan vi~w showing the chain (6) carrying the carrier ~ets (4), where the condom matrixes with their corresponding hub~, axles, cam~ and wheels are found.
_ _ . _ _ . , . _ . . _ . . . _ _ .
~- 2181968 Refere~ce character tC~ shows th~ pinionE~ that move tha chain (6) . Chain (13) bears the ela itomeric ring carrier sets. Re~erence nurneral (14) represents the adh~sive coating. Reference character ~G~ show~ the oven used for 5 drying . Reference character tX~ shows the f irst cutting device uqed to separate the unused remains of the fabric that cover~ the prophylactic, which is placed on the corresponding condom matrix. ~nother clltting device (Xl)' perfo~Tns the cutting of fabric one mi ~ l irl ~er above the 10 ~lhP~i~ line in order to di~pose of the grcate~t possible amount of fabric not adhered to the condom. Pinions (~a~
move the chairl (13~. Roller (B~ regulates the height of the cU~ yuL ~ands (1l~. Rollers (20) mOVe the bands (ll).
Zone ~'A~' show~ where the ela~tomeric rirg as well as the 15 ~in; Rh~d condom are withdrawn. Zone "B" qhows wherc the prophylactic is placed on the condom matrix, Zone "C"
~hows the place where the el~stomeric ring~ (16) are once again placed within the ~et (15).
Figure 3 iq a side view showing ~he fabric (l9) as it 20 enter3 into the cone (D). The fabric ~l9) adheres to the cor.v.:yul bands (11~, and i~ then CUt along the rl~iddle of both bands ~18). Rollers ~20~ mo~e the co~v~yor band~
, which band~ ) in tu~n carry the ~abric ~19) towards a co~venient position on the condom rnatrixes, ac 25 can be appreciated by the drawing. Roller (B~ iq used to re~ulate the conveyor bands ~ 80 that the knitted fabric ca~ hold on tight, deform itself and re~t on the prophylactic. Chain ~13~ hold~ the el~stomeric ring , _ _ _ _ _ _ _ ,, , ., ,, . , .. , _ _ , . , . _, , , _ , _ ~ 2t81968 carriers (7). ~inions (7a) move the chain (13~. Wheel~
(9) act on the cam (10) 90 that the prophylactic, which is placed on the condom matrix and covered by the knitted fa}:ric, may slide ~ . ds to introduce itself into the 5 elaseomeric ring chus keeping the ~abric (19) fastened to the condom. Reference numeral (16) shows the ela3tomeric ring at its best point in ~astening the fabric (19).
Refere~ce character (K) shows the complete illustration of the condom matrix, the ~abric ~19) and the elastomeric 10 ri~, which matrix slides upwards talcing along the el~ct~. - c ring (16) and detaches it~elf ~rom the chain and from the device that cnnt~in~ t~e ela~tomeric rings.
Re~erenc~ rh~r~rt~r (J) shows how the cam (10) moves ~pward~ so that the wh2el (9) can perform this operation.
15 First cutting device (X) is used to separate the ~, ;ning portion o~ the unused fabric and thus is able to separate the whole set from the co..v~y~ bands ~11). Two rollers ~Zl) are used to withdraw the unused rem~ins, adhered to the conveyor band3 (11).
~s is show~ in Figures 3A and 3B reference character (E) ~hows the fabric i~ its natural state as i~ enters into the cone (r)) and re~erence character ~F) shows the defor~ed ~abric already placed over the prophylactic.
Figure 4 i~ a side view showing the condom matrix (1), the axle (2), the ela6tomeric ring (16~, the parallel ~:C~v~:yvl bands ~11) which adh~re to the iabri~, the first cutting zone (X), and the de~ormed ~abric (F) placed over the condom. Reference numeral (la~ shows the prophylactic .. . ... ,, . , .. _, .. _ _ , , , ~ 2181968 placed on the condom matrix.
Figure 5 is a side view of the propbylactic already bearing the adhered fabric. Reference character ~F) showg an enlarged v~ew of the deforlned fabric.
While Figures 1-5 uhow the preferred .Qrnhorli - t, Figures 6-10 8how an alternate: '- r~ It for forming the prophylactic of the present invention.
For example, Figure 6 is a side~ view depicting a flapped chain ~1) which is fixed to a carrier plate (3~ by 10 Inean3 of a screw (2~. At the other end of the plate ~3) there i9 a wheel (4) that re~t~ on a support ~5) to ~-int~n horizontal stability. The axles are marked with le~te~ ~A), which s~ide on the plate ~3) where point~ (A1~
are present to hold tight and guide the convayor bands (B) 15 that at point ~B5) have fastening devices, such as VE~CR0~-type to hold the ~a~ric. At reiere~ce character (C~ there i6 ~hown the ~abric adhered tO point BS. Re~erence character ~D) ~hows the axles sliding on the plate (3) and at one o~ it~ ends there lies an elastomeric ring (D9~ used 20 to deform and ~it the fabric tight ~C) to the matrix (10), which i~ cov~red by the condom (11). Ther~ is al~o shown the axles (E) that slide on the plate (3) bearing, at one of its ends, a ring in the shape o~ a blade ~EG) which i~
electrically heated and ~s appropriate ~or cutting, by 25 means of heat temperature, the Ll in~r o~ the fabric ~hat did not ~dhere to t~e condom. Letter (J~ shows all the u~pport point~ of the sliaing axles that work in their own cams (F).
~' 2181968 ~ igure 7 is a side vlew ~howing that once the rod~
ha~re ~lid over to the bafie of the condom matrix ~10), carryillg the Cvl~Ve:yu~ band ~B) that has the fabric (C) fastened to it at point ~B5), it is maae ea6ier ~or the 5 elastomeric ring ~Dg) to deform and fit the faoric tight in a longit~dinal sen3e i~ relatio~ to the condom's axle (11).
In ~rame ~C1) there is 6hown the fabric thus de~ormed.
Figure ~ is a plan view that 3~0ws the ~lapped chain ~1) whic~l, by mean~ of 3crews (2~ fixe3 a plate (3~ at 10 which end the wheel (4~ acts t~po~ the tra~k (5~. These ~eatures are all moved by pinion3 ~15) located at both end~ ~igure 8 also shows two cuYlv~yur bands ~B) that rotate by means o~ the pulleys ~G) and rest on the cor~e ~R~
to adhere to the fabric through a fastening system ~B5).
Pigure 9 is a plan view of the cone (K~ where th~
fabric in the ahape o~ a tube i8 P~t:~rn~ y i~troduced.
~wo parallel conveyor bands ~B) that have fa~qt~nin~ de~iceQ
(BS) are adhered to the fabric. I~ the middls of both band6 there is provided a cutting device (~ which works 20 ~ t~ly after the fabric i6 adhere~ by the mentioned devices ~B5~. Figu~e 9 al~o shows how the ~;v~v~yu~ bands ~ B~ come apart to adequately locate themsslve3 on the matrixe6 .
Figure lo is a side ~riew in which is showr~ th~ c~ain 25 ~1~ mûved by the pinions (15~ that ca~ry the condom ~atrixes ~10) upon which the elastomeric rings (D9~, as well as ths c~tting ~lades (~G~, act. ~abric (C) i~ ~ho~n ., _ . . _ . _ _ _ _ _ _ .
~ 21~1968 being introduced into the cone (R). ~igure lO also shows th~ c~"veyo~ bands (B) that, through ~heir devices ~B5?, adhere to the fab~ic, which after beLng cut, i8 conveniently located on the condom matrixes (10) . Once the 5 ring~ (D9) do their job, the prophylactic i8 all introduced into the adhe~lve coat (12~ and later dried in the oven (l3~ . That part of the fabric which has not become adh~red to the condom is separated ~rom it by meanC o~ cylinder.~l shaped afi blades (EG), after which the c~linder~ ll4) take 10 away tlle ~ ;ning portion o~ fabric ~rom the machine~s c~rc~lit .
Pigur~ lOA show~ t~e fabric (C2) as it i~ introduced into the cone ~R) in its natural state. In Figure lOB, the ~a~ric ~Cl1 is ~hown deformed and fitted ti~htly to the 15 condom by the elastomeric ring ~D9).
Other modifications may be made to the present invention, ~ithout depar~ing from the scope o~ the i~e~eion, ~ Dc-e~d in th~ r~rp~d~d cla~
.
Claims (3)
1. An improved prophylactic comprising a prophylactic tube including the adhesion of a knitted fabric starting from a closed end of said prophylactic, said fabric being previously deformed make said fabric inelastic in a longitudinal sense in relation to a longitudinal axis of said prophylactic axis.
2. A procedure for the manufacturing of a prophylactic according to claim 1, comprising the steps by which a knitted fabric in the shape of a tube is introduced into a cone and two parallel conveyor bands that have fastening devices adhere to said fabric; said fabric, after being cut in the middle of both bands, is adequately guided onto said prophylactics, which said prophylactics are in turn placed on the condom matrixes where elastomeric rings deform and fasten the fabric tight; wherein further the whole set is ready to be dipped into an adhesive coating and later dried, after which some electrically heated devices cut away any left over fabric that did not adhere to said prophylactic, and said prophylactic is subsequently rolled up and readied for packaging.
3. An improved prophylactic comprising a prophylactic having a knitted fabric adhered to said prophylactic from the closed end of said prophylactic, said fabric being previously deformed to make it inelastic in its longitudiual sense in relation to an axis of said prophylactic.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AR336,351 | 1996-04-30 | ||
| AR33635196A AR001821A1 (en) | 1996-04-30 | 1996-04-30 | Procedure for the manufacture of prophylactics adhered to a knitted fabric |
| AR33748996 | 1996-07-16 | ||
| AR337,489 | 1996-07-16 | ||
| US08/683,796 | 1996-07-18 | ||
| US08/683,796 US5816249A (en) | 1996-04-30 | 1996-07-18 | Latex prophylactics adhered to a deformed knitted fabric and their manufacturing procedure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2181968A1 true CA2181968A1 (en) | 1997-10-31 |
Family
ID=27145691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002181968A Abandoned CA2181968A1 (en) | 1996-04-30 | 1996-07-24 | Latex prophylactics adhered to a deformed knitted fabric and their manufacturing procedure |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2181968A1 (en) |
-
1996
- 1996-07-24 CA CA002181968A patent/CA2181968A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20000724 |