Sealant dispensers

Claim 2

A dispenser comprising an elongated, hollow container for dispensable viscous material, said container having a forward, dispensing end; impellent means disposed within said container adjacent to the rearward end thereof; fluid pressure coupling means adapted to be disposed at the rearward end of said container in airtight engagement therewith; the coupling means and said impellent means disposed in spaced relation and defining a pressure chamber therebetween; said coupling means adapted to be connected to a pressure fluid source wherefor fluid pressure may be forced into said chamber behind said impellent means to force said material toward said dispensing end; means for detachably securing said coupling means to said container; said container being open at the rearward end thereof and said impellent means comprising a closure member closely and slidably fitted within said container and spaced inwardly from said rearward end in airtight engagement therewith; said coupling means having connector means adapted to extend forwardly generally parallel with the sides of said container; retainer means carried by the forward portion of said connector means for overlapping the forward end of said container and retaining said coupling means in assembled relation with said container when fluid pressure is forced into said chamber; said connector means comprising a pair of elongated struts pivotalLy attached at opposite sides of said coupling means and extending substantially the full length of said container whereby in assembly of said dispenser, said coupling means is first fitted within said open rearward end after which said retainer means is pivoted to a position overlapping the forward end of said container; an end closure carried at the forward end of said container; means defining a dispensing aperture in said end closure; said retainer means comprising a forward coupling member; a dispensing spout carried by said coupling member and adapted to be aligned with said aperture for discharging said material through said spout; said spout having a radiating flange at the rearward end thereof whereby said spout can be shifted laterally to cause a portion of said flange to overlie said aperture and stop the flow of said material.

Claim 3

A dispenser as set forth in claim 1; said end closure having a forwardly projecting rim adjacent to the outer edge thereof; said radiating flange being disposed generally within said rim when said spout is in dispensing position and having a portion extending radially a lesser distance on one side of said spout than the portion on the other side thereof whereby said spout can be shifted laterally to a position wherein the flange portion on said one side abuts the inner periphery of said rim and whereby the flange portion on said other side overlies said aperture.

Claim 4

A dispenser comprising an elongated, hollow container for dispensable viscous material, said container having a forward, dispensing end; impellent means disposed within said container adjacent to the rearward end thereof; fluid pressure coupling means adapted to be disposed at the rearward end of said container in airtight engagement therewith; the coupling means and said impellent means disposed in spaced relation and defining a pressure chamber therebetween; said coupling means adapted to be connected to a pressure fluid source wherefor fluid pressure may be forced into said chamber behind said impellent means to force said material toward said dispensing end; means for detachably securing said coupling means to said container; said container being open at the rearward end thereof and said impellent means comprising a closure member closely and slidably fitted within said container and spaced inwardly from said rearward end in airtight engagement therewith; said coupling means having connector means adapted to extend forwardly generally parallel with the sides of said container; retainer means carried by the forward portion of said connector means for overlapping the forward end of said container and retaining said coupling means in assembled relation with said container when fluid pressure is forced into said chamber; said connector means comprising a pair of elongated struts pivotally attached at opposite sides of said coupling means and extending substantially the full length of said container whereby in assembly of said dispenser, said coupling means is first fitted within said open rearward end after which said retainer means is pivoted to a position overlapping the forward end of said container; said container having a perforable forward closure member disposed within the forward end portion of said container, said forward closure member being closely and slidably fitted within said container; a forward coupling member carried by the forward ends of said struts adapted to be fitted within the forward end of said container adjacent to said forward closure member; means defining an aperture through said forward coupling member; a perforating spout having means comprising a perforating end portion and means for engaging edge portions of a perforation upon twisting said spout about its own axis; said container adapted to contain dispensable, viscous material whereby application of fluid pressure to said chamber moves said forward closure member forwardly against said forward coupling member whereby said perforating spout can be inserted through said aperture in said forward coupling member, pushed into said forward closure member to perforate the same, and twisted to engage edge portions of the perforation thus provided.

Claim 5

A dispenser comprising an elongated, hollow container for dispensable viscous material, said container having a forward, dispensing end; impellent means disposed within said container adjacent to the rearward end thereof; fluid pressure coupling means adapted to be disposed at the rearward end of said container in airtight engagement therewith; the coupling means and said impellent means disposed in spaced relation and defining a pressure chamber therebetween; said coupling means adapted to be connected to a pressure fluid source wherefor fluid pressure may be forced into said chamber behind said impellent means to force said material toward said dispensing end; means for detachably securing said coupling means to said container; said container being open at the rearward end thereof and said impellent means comprising a closure member closely and slidably fitted within said container and spaced inwardly from said rearward end in airtight engagement therewith; said coupling means having connector means adapted to extend forwardly generally parallel with the sides of said container; retainer means carried by the forward portion of said connector means for overlapping the forward end of said container and retaining said coupling means in assembled relation with said container when fluid pressure is forced into said chamber; said connector means comprising a pair of elongated struts pivotally attached at opposite sides of said coupling means and extending substantially the full length of said container whereby in assembly of said dispenser, said coupling means is first fitted within said open rearward end after which said retainer means is pivoted to a position overlapping the forward end of said container; said container having a perforable forward closure member disposed within the forward end portion of said container, said forward closure member being closely and slidably fitted within said container; a forward coupling member carried by the forward ends of said struts adapted to be fitted within the forward end of said container adjacent to said forward closure member; means defining an aperture through said forward coupling member; a perforating spout having means comprising a perforating end portion and means for engaging edge portions of a perforation upon twisting said spout about its own axis; said container adapted to contain dispensable, viscous material whereby application of fluid pressure to said chamber moves said forward closure member forwardly against said forward coupling member whereby said perforating spout can be inserted through said aperture in said forward coupling member, pushed into said forward closure member to perforate the same, and twisted to engage edge portions of the perforation thus provided.

Claim 6

A dispenser as set forth in claim 3: valve means carried by said perforating spout adapted to shut off the flow of material therethrough; and manual means carried by said spout for actuating said valve.

Claim 7

A dispenser comprising an elongated, hollow container for dispensable viscous material, said container having a forward, dispensing end and an open rearward end; impellent means disposed within said container adjacent to the rearward end thereof, said impellent being spaced inwardly of the rearmost edge of said container and movable through said container to dispense said material; a fluid pressure coupling means having a portion thereof slidable telescoped into the open rearward end of said container in fluid tight engagement therewith and adapted to direct pressure fluid behind said impellent and force said material toward said dispensing end; said coupling means having laterally shiftable connector means adapted to extend forwardly generally parallel with the sides of the container; retainer means carried by the forward portion of said connector means for overlapping the forward end of said container, said connector means and container having relative lengths whereby said retainer means can be forced into overlapping position relative to the forward end of said container with manual pressure to retain said coupling means in substantially fluid tight engagement with said container when pressure fluid is applied to said impellent means; an end closure carried at the forward end of said container; means defining a dispensing aperture in said end closure; said retainer means comprising a forward coupling member; a dispensing spout carried by said coupling member and adapted to be aligned with said aperture for discharging said material through said spout; said spout having a radiating flange at the rearward end thereof whereby said spout can be shifted laterally to cause a portion of said flange to overlie said aperture and stop the flow of said material.

Claim 8

A dispenser comprising an elongated, hollow container for dispensable viscous material, said container having a forward, dispensing end and an open rearward end; impellent means disposed within said container adjacent to the rearward end thereof, said impellent being spaced inwardly of the rearmost edge of said container and movable through said container to dispense said material; a fluid pressure coupling means having a portion thereof slidable telescoped into the open rearward end of said container in fluid tight engagement therewith and adapted to direct pressure fluid behind said impellent and force said material toward said dispensing end; said coupling means having laterally shiftable connector means adapted to extend forwardly generally parallel with the sides of the container; retainer means carried by the forward portion of said connector means for overlapping the forward end of said container, said connector means and container having relative lengths whereby said retainer means can be forced into overlapping position relative to the forward end of said container with manual pressure to retain said coupling means in substantially fluid tight engagement with said container when pressure fluid is applied to said impellent means; an end closure carried at the forward end of said container; means defining a dispensing aperture in said end closure; said retainer means comprising a forward coupling member; a dispensing spout carried by said coupling member and adapted to be aligned with said aperture for discharging said material through said spout; said spout having a radiating flange at the rearward end thereof whereby said spout can be shifted laterally to cause a portion of said flange to overlie said aperture and stop the flow of said material.

Claim 9

A dispenser as set forth in claim 5: said end closure having a forwardly projecting rim adjacent to the outer edge thereof; said radiating flange being disposed generally within said rim when said spout is in dispensing position and having a portion extending radially a lesser distance on one side of said spout than the portion on the other side thereof whereby said spout can be shifted laterally to a position wherein the flange portion on said one side abuts the inner periphery of said rim and whereby the flange portion on said other side overlies said aperture.

Claim 10

A dispenser comprising an elongated, hollow container for dispensable viscous material, said container having a forward, dispensing end and an open rearward end; impellent means disposed within said container adjacent to the rearward end thereof, said impellent being spaced inwardly of the rearmost edge of said container and movable through said container to dispense said material; a fluid pressure coupling means having a portion thereof slidable telescoped into the open rearward end of said container in fluid tight engagement therewith and adapted to direct pressure fluid behind said impellent and force said material toward said dispensing end; said coupling means having laterally shiftable connector means adapted to extend forwardly generally parallel with the sides of the container; retainer means carried by the forward portion of said connector means for overlapping the forward end of said container, said connector means and container having relative lengths whereby said retainer means can be forced into overlapping position relative to the forward end of said container with manual pressure to retain said coupling means in substantially fluid tight engagement with said container when pressure fluid is applied to said impellent means; said container having an open forward end; a closuRe member slidably disposed within said container adjacent to said forward end and spaced inwardly from the forward edge of said container; said closure member having a transverse, perforable closing wall adapted to seat against said retainer means when pressure fluid is directed behind said impellent, said retainer means affording on opening adjacent to said closing wall whereby perforating means can be projected through said opening to perforate said closing wall for dispensing said material.

Claim 11

A dispenser comprising an elongated, hollow container for dispensable viscous material, said container having a forward, dispensing end and an open rearward end; impellent means disposed within said container adjacent to the rearward end thereof, said impellent being spaced inwardly of the rearmost edge of said container and movable through said container to dispense said material; a fluid pressure coupling means having a portion thereof slidable telescoped into the open rearward end of said container in fluid tight engagement therewith and adapted to direct pressure fluid behind said impellent and force said material toward said dispensing end; said coupling means having laterally shiftable connector means adapted to extend forwardly generally parallel with the sides of the container; retainer means carried by the forward portion of said connector means for overlapping the forward end of said container, said connector means and container having relative lengths whereby said retainer means can be forced into overlapping position relative to the forward end of said container with manual pressure to retain said coupling means in substantially fluid tight engagement with said container when pressure fluid is applied to said impellent means; said container having an open forward end; a closuRe member slidably disposed within said container adjacent to said forward end and spaced inwardly from the forward edge of said container; said closure member having a transverse, perforable closing wall adapted to seat against said retainer means when pressure fluid is directed behind said impellent, said retainer means affording on opening adjacent to said closing wall whereby perforating means can be projected through said opening to perforate said closing wall for dispensing said material.

Claim 12

A dispenser as set forth in claim 7: said retainer means having a portion thereof adapted to be telescoped into the forward end of said container.