Claims
- 1. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube formed of a length of substantially constant diameter thin-walled glass tubing of substantially constant wall thickness along its length and having a wall thickness substantially smaller than the outer and inner wall diameters of said glass tubing,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being frictionally secured in annularly extending stretch-fit along their sheath sections over and along respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing,
- said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow by-pass cavity of larger internal diameter than the internal diameter of said cylindrical glass tube,
- and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube,
- said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow by-pass cavity at all corresponding annular and longitudinal points along the length and annular periphery of said plug and said by-pass cavity to enable free plug movement within said by-pass cavity and fluid by-pass flow around the annular periphery of said pop-out valve plug when such plug is longitudinally popped out into said by-pass cavity by forward motion of said plunger.
- 2. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing,
- said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube,
- and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube,
- said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid,
- said valve seal elastic plug having a cruciform forward and rear face forming fluid flow channels on each of said forward and rear faces.
- 3. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube having fire-polished slightly enlarged opposite ends,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube,
- said finger-grip sheath annular enlargement being a fillet connecting with an annular finger-grip section,
- said annular enlargement on said nose-forming sleeve forming a raised ring disposed in spaced relation from the opposite longitudinal ends of its respective said sheath section.
- 4. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube having fire-polished slightly enlarged opposite ends,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing,
- said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube,
- and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube,
- said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid,
- both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube.
- 5. An arrangement according to claim 4,
- said finger-grip sheath annular enlargement being a fillet connecting with an annular finger-grip section.
- 6. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube having fire-polished beaded opposite ends,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite fire-polished beaded ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing,
- said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube,
- and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube,
- said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid,
- and an annular enlargement on said nose-forming sleeve forming a raised ring disposed in spaced relation from the opposite longitudinal ends of its respective said sheath section and in substantial lateral encompassing relation about the respective said fire-polished end bead.
- 7. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- said reduced diameter section of said nose-forming sheath including a laterally extending wall spaced longitudinally forwardly of the respective adjacent end of said glass tube and having a reduced diameter central orifice formed therein for fluid flow therethrough during dispensing,
- said nose-forming thermoplastic resin sleeve sheath section extending longitudinally beyond the respective overlain said end of said glass tube to form a fluid flow cavity of larger internal diameter than the internal diameter of said cylindrical glass tube,
- and said valve seal being a pop-out elastic plug frictionally sealing the nose sleeve end of said tube,
- said plug having a free relaxed diameter and length size less than the corresponding diameter and length sizes of said fluid flow cavity and having a channeled forward face to ensure fluid flow therearound and through said reduced diameter orifice upon popping said valve plug into said cavity by forward motion of said piston and contained liquid,
- said pop-out valve plug having a raised cruciform forward surface.
- 8. An arrangement according to claim 7,
- said pop-out valve plug having raised cruciform forward and rearward surfaces.
- 9. An arrangement according to claim 8,
- said pop-out valve plug having a plurality of annular sealing rings and grooves formed on its annular surface.
- 10. An arrangement according to claim 9,
- a sloped annular cam surface formed on one of the longitudinally inner end of said sheath section of said finger-grip sleeve and the respective longitudinally outer said end of said glass tube,
- and a sloped annular cam surface formed on one of the longitudinally inner end of said sheath section of said nose-forming sleeve and the respective said end of said glass tube.
- 11. An arrangement according to claim 10,
- at least one of said sloped annular cam surfaces being formed on said one end of said glass tube.
- 12. An arrangement according to claim 11,
- at least one of said sloped annular cam surfaces being an annular bevel.
- 13. An arrangement according to claim 11,
- at least one of said sloped annular cam surfaces being smoothly arcuate in longitudinal section.
- 14. An arrangement according to claim 13,
- at least one of said sloped annular cam surfaces being formed by and as a part of an annular fire-polished rim formed on one end of said glass tube.
- 15. An arrangement according to claim 14,
- said annular fire-polished rim comprising a fire-polished raised annular bead, and said fire-polished bead being formed at both longitudinal ends of said glass tube.
- 16. An arrangement according to claim 10,
- said sloped annular cam surfaces being formed on the respective longitudinally inner end each of said sleeve sheaths and facing away from the respective overlain longitudinal ends of said glass tube in the mutually assembled position of said tube and sleeves.
- 17. An arrangement according to claim 16,
- said sloped annular cam surface being formed on both longitudinal ends of said tube and on said longitudinally inner ends of both of said sleeves.
- 18. An arrangement according to claim 17,
- at least one end of said glass tube having an annular fire-polished rim smoothly arcuate in longitudinal section, formed thereon and forming said annular cam surface,
- said annular fire-polished rim comprising a fire-polished raised annular bead.
- 19. An arrangement according to claim 18,
- said finger-grip sleeve having at its axially outer end an internal shoulder stop adjacent and extending into the longitudinally extended path of said glass tube one end.
- 20. An arrangement according to claim 19,
- said shoulder stop extending radially inwardly beyond the inner diameter of said glass tube.
- 21. An arrangement according to claim 19,
- said shoulder stop extending radially inwardly no further than the effective inner diameter of said tube.
- 22. An arrangement according to claim 21,
- said laterally extending finger-grip protrusion having a smoothly arcuate fillet forming a forward connecting zone with the tube-engaging sheath section of said finger-grip sleeve at the outer end of said finger-grip sleeve lying over and in lateral alignment with said fire-polished beaded one end of said tube.
- 23. An arrangement according to claim 22,
- said laterally extending finger-grip protrusion comprising a laterally extending flange,
- said laterally extending flange being annular in extent and disposed axially beyond the respective end of said tube, and a smoothly enlarged annular fillet formed at the annular juncture zone between the longitudinally tubular portion of said finger-grip sleeve and said annular flange, said enlarged annular fillet laterally overlying and encompassing the respective annular beaded end of said tube.
- 24. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube having fire-polished beaded opposite ends,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- said laterally extending finger-grip protrusion having an enlarged annular fillet juncture with the longitudinally extending tube-engaging portion of said finger-grip sleeve and lying over and in lateral alignment with said fire-polished beaded one end of said tube,
- said laterally extending finger-grip protrusion comprising a laterally extending flange,
- said laterally extending flange being annular in extent and having a main forward surface disposed longitudinally facing an imaginary plane extending across the end face of the respective annular fire-polished beaded end of said tube.
- 25. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube having fire-polished beaded opposite ends,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- both of said sleeve sheaths having a laterally outwardly extending annular enlargement section at and in substantial lateral encompassing relation with the respective annular fire-polished end bead on said glass tube.
- 26. A glass tube and non-glass finger grip and nose-forming arrangement for use particularly in packaging and subsequent dispensing of chemicals, comprising
- a substantially cylindrical glass tube,
- a finger-grip sleeve of thermoplastic resin and having a tube-gripping sheath section laterally extending finger-grip protrusion integrally formed thereon,
- and a nose-forming sleeve of thermoplastic resin and having a reduced diameter section integral with a tube-gripping sheath section thereof,
- said sleeves being stretch-fit along their sheath sections over and onto respectively opposite ends of said glass tube,
- a piston slidably disposed in sealing relation within and at said end of said glass tube having said finger-grip sleeve thereon,
- a valve seal disposed at the opposite nose end of said glass tube,
- and a dispensable liquid contained within said tube between said piston and said valve seal,
- said sleeves being fitted onto said glass tube while said sleeves are at an elevated stress-relieving temperature substantially higher than the temperature of said glass tube and any material contained therein.
- 27. A dispenser arrangement comprising
- a barrel section having a straight cylindrical bore with a liquid containment and plunger-guiding midsection and an open forward discharge end section which is contiguous to and forms an extension of said midsection, said bore being of substantially constant diameter along its effective liquid-containment and plunger-guiding midsection and its contiguous forward discharge end section,
- a slidable pop-out valve plug having a section of soft elastic material disposed in radially elastically compressed sealing condition in and across said forward end of said tube bore,
- and a nose section disposed at and connecting with said forward discharge end and having a forward end wall with a reduced diameter dispensing orifice formed therein,
- said nose section forming a fluid flow by-pass cavity between the respective forward end of said tube barrel section and said reduced diameter dispensing portion of said nose section, said by-pass cavity being of greater effective size than the relaxed size of said pop-out valve plug at all corresponding annular and longitudinal points along the length and annular periphery of said plug and said cavity to enable free plug movement within said cavity and fluid by-pass flow around the annular periphery of said pop-out valve plug when such plug is longitudinally popped out into said by-pass cavity by forward motion of said plunger.
- 28. A dispenser according to claim 27,
- said barrel section being a cylindrical tube of substantially constant internal diameter along its effective bore length and said nose section being a separate element having an internal diameter larger than said diameter of said cylindrical tube and forming said by-pass cavity.
- 29. A dispenser according to claim 28,
- and a longitudinally manually movable plunger seal slidably disposed in said substantially constant diameter bore rearwardly of said pop-out valve plug.
- 30. A dispenser according to claim 29,
- said cylindrical tube barrel section comprising a substantially cylindrical glass tube formed of a length of substantially constant diameter thin-walled glass tubing of substantially constant wall thickness along its length and having a wall thickness substantially smaller than the outer and inner wall diameters of said glass tubing,
- said nose section comprising a plastic sleeve sheath secured about the forward end of said glass tubing.
- 31. A dispenser according to claim 30,
- said plastic sleeve sheath engaging said forward end of said glass tubing in a stretch fit and having a substantially constant circumferential interior extending beyond the end of said glass tubing and forming the circumferential bounding wall of said by-pass cavity.
- 32. A dispenser according to claim 30,
- said plastic sleeve sheath being cam stretch fit over said forward end of said glass tubing.
- 33. A dispenser according to claim 32,
- and a sloped annular cam surface formed on one of the longitudinally inner end of said nose-forming sheath and the respective forward end of said glass tubing.
- 34. A dispenser according to claim 33,
- said sloped annular cam surface being formed on said forward end of said glass tubing.
- 35. A dispenser according to claim 33,
- said sloped annular cam surface being an annular bevel.
- 36. A dispenser according to claim 33,
- said sloped annular cam surface being smoothly arcuate in longitudinal section.
- 37. A dispenser according to claim 36,
- said sloped annular cam surface being formed by and as a part of an annular fire-polished rim formed on said forward end of said glass tubing.
- 38. A dispenser according to claim 37,
- said annular fire-polished rim comprising a fire-polished raised annular bead.
- 39. A dispenser according to claim 38,
- a said sloped annular cam surface being formed on both said glass tubing and the longitudinally inner end of said sleeve.
- 40. A dispenser according to claim 30,
- said nose sleeve sheath being formed of polypropylene.
- 41. A dispenser according to claim 30,
- and a finger-gripping plastic sleeve sheath secured about the rear of said glass tubing.
- 42. A dispenser according to claim 27,
- and a longitudinally manually movable plunger seal slidably disposed in said substantially constant diameter bore rearwardly of said pop-out valve plug.
- 43. A dispenser according to claim 27,
- said barrel section comprising a glass tube formed of a length of die-formed cylindrical glass tubing of substantially constant diameter along its length and of substantially constant wall thickness along its length, said wall thickness being substantially smaller than the inner and outer wall diameters of said glass tubing,
- said nose section comprising a plastic sleeve sheath secured in annular frictional fit about the forward end of said glass tubing.
- 44. A dispenser according to claim 43,
- said plastic sleeve sheath engaging said forward end of said glass tubing in a stretch fit.
- 45. A dispenser according to claim 43,
- said plastic sleeve sheath being cam stretch fit over said forward end of said glass tubing.
- 46. A dispenser according to claim 45,
- and a sloped annular cam surface formed on one of the longitudinally inner end of said nose sheath and the respective forward end of said glass tubing.
- 47. A dispenser according to claim 46,
- said sloped annular cam surface being formed on said forward end of said glass tubing.
- 48. A dispenser according to claim 46,
- said sloped annular cam surface being an annular bevel.
- 49. A dispenser according to claim 46,
- said sloped annular cam surface being smoothly arcuate in longitudinal section.
- 50. A dispenser according to claim 49,
- said sloped annular cam surface being formed by and as a part of an annular fire-polished rim formed on said forward end of said glass tubing. 51
- 51. A dispenser according to claim 50,
- said annular fire-polished rim comprising a fire-polished raised annular bead.
- 52. A dispenser according to claim 51,
- a said sloped annular cam surface being formed on both said glass tubing and the longitudinally inner end of said sleeve.
- 53. A dispenser according to claim 27,
- said fluid by-pass cavity being substantially cylindrical and having a circumferentially oversized interior relative to said plug, along a length greater than the length of said plug.
- 54. A dispenser according to claim 27,
- said oversized interior of said cavity being substantially cylindrical along a length thereof.
- 55. A dispenser according to claim 54,
- said oversized interior of said cavity being substantially cylindrical along its length.
- 56. A dispenser according to claim 27,
- said fluid by-pass cavity being substantially cylindrical and having a circumferentially oversized interior relative to said plug, along a length greater than the length of said plug.
- 57. A dispenser according to claim 27,
- said fluid by-pass cavity having an oversized interior relative to said plug, along a length thereof greater than the effective sealing length of said plug.
Parent Case Info
This is a division, of application Ser. No. 197,845 filed Nov. 11, 1971 now abandoned.
US Referenced Citations (5)
Divisions (1)
|
Number |
Date |
Country |
Parent |
197845 |
Nov 1971 |
|