← Back to Patent Explorer
US4758158A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydrocolloid injection system

Assignee: SOL BELPORT CO Inc
•
Filing: 1983-10-21
•
Granted: 1988-07-19
•
Expires: 2003-10-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The hydrocolloid injection system which utilizes a dispensing syringe as the vial within which the hydrocolloid impression material is shipped and stored prior to usage. The syringe includes a transparent barrel within which the hydrocolloid material is located. A plunger is slidingly mounted within the barrel which is to function to cause the hydrocolloid material to flow from the barrel through an outlet opening. The plunger forms an airtight and watertight seal with respect to the barrel with also a cap being located about the outlet opening of the barrel also forming an airtight and watertight seal. The barrel, plunger and cap can all be located within boiling water with no fear of the water itself actually coming into contact with the hydrocolloid impression material. During usage, the cap will be removed and a nozzle assembly mounted in conjunction with the barrel to facilitate depositing of the hydrocolloid impression material at its desired location.

Inventors

  • 👤 James E. Pierce
  • 👤 Daniel N. Kottler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 07:54
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/0026; B; B05; B05C; B05C17/00; B05C17/005; B05C17/00503; B05C17/00506; B05C17/00516

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 214 words
A hydrocolloid injection system comprising: a quantity of hydrocolloid impression material; a syringe, having a barrel in which is slidingly located a plunger, said barrel terminating at an outlet opening, said hydrocolloid impression material being located within said barrel, said syringe being constructed of transparent plastic so as to be readily able to visually observe the quantity of hydrocolloid material within said barrel; a sleeve attached to said barrel around said outlet opening, said hydrocolloid impression material being conductable through said sleeve, said sleeve having an exterior surface; a cap removably connected to said exterior surface, said cap to form a first watertight and airtight seal with said sleeve, said plunger forming a second watertight and airtight seal with said barrel, whereby said syringe is to be locatable within boiling water to cause the hydrocolloid material to be flowable through said outlet opening and the boiling water does not intermix with said hydrocolloid material; and a nozzle assembly, said hydrocolloid material to be dispensed through said nozzle assembly into the ambient, said nozzle assembly being attached to said sleeve upon said cap having been removed from said sleeve, there being a plurality of different sizes of nozzle assemblies with any one of said nozzle assemblies to be selected to be connected to said sleeve.
Claim 2
Dependent Claim 214 words
A hydrocolloid injection system comprising: a quantity of hydrocolloid impression material; a syringe, having a barrel in which is slidingly located a plunger, said barrel terminating at an outlet opening, said hydrocolloid impression material being located within said barrel, said syringe being constructed of transparent plastic so as to be readily able to visually observe the quantity of hydrocolloid material within said barrel; a sleeve attached to said barrel around said outlet opening, said hydrocolloid impression material being conductable through said sleeve, said sleeve having an exterior surface; a cap removably connected to said exterior surface, said cap to form a first watertight and airtight seal with said sleeve, said plunger forming a second watertight and airtight seal with said barrel, whereby said syringe is to be locatable within boiling water to cause the hydrocolloid material to be flowable through said outlet opening and the boiling water does not intermix with said hydrocolloid material; and a nozzle assembly, said hydrocolloid material to be dispensed through said nozzle assembly into the ambient, said nozzle assembly being attached to said sleeve upon said cap having been removed from said sleeve, there being a plurality of different sizes of nozzle assemblies with any one of said nozzle assemblies to be selected to be connected to said sleeve.

References Cited (Backward Citations)

US2265118A Cited
US2505028A Cited
US2903794A Cited
US2991224A Cited
US3191809A Cited
US3345497A Cited
US3346147A Cited
US3731453A Cited
US3760503A Cited
US4232688A Cited
US4260597A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-07-19 1992-01-18 1992-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-07-19 1996-01-18 1996-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-07-19 2000-01-18 2000-07-19 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag