Automatic injector with improved glass container protector
Patent 4678461 Issued on July 7, 1987. Estimated Expiration Date: 
November 1, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 1, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2832339 3380449 3391695 3424155 3712301 3797489 3882863 Syringe barrel with protective plastic cover Hypodermic injection device having means for varying the medicament capacity thereof Plural injecting device InventorApplicationNo. 06/667443 filed on 11/01/1984US Classes:604/157, Conduit impelled by spring604/225Means for preventing destructive piston impact on end of material reservoirExaminersPrimary: Yasko, John D.Attorney, Agent or FirmInternational ClassA61M 5/20 (20060101)AbstractAn automatic injector having a glass container protecting sleeve of thin plastic material assembled in an operative position within the injector housing with respect to the glass medicament container when the stressed spring actuating assembly is in an unreleased condition so as to protect the glass container against fracture (1) due to handling impacts prior to release of the stressed spring assembly and (2) due to the force transmitted to the plunger following the release of the stressed assembly. The sleeve includes a cylindrical portion disposed in engagement with a cylindrical periphery of the glass container when the protective sleeve is in its operative position and an annular flange extending from the rear end of the cylindrical portion disposed in rearwardly adjacent relation to the rear end edge of the glass container when the protective sleeve is in its operative position.Field of SearchMeans for preventing destructive piston impact on end of material reservoirInjector components pivoted relative to each other to move piston Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) Conduit forced into body by self-acting fluid pressure, motor-driven, or mechanical energy storing means Conduit impelled by spring | |
