← Back to Patent Explorer
EP0078112A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Contamination-free sterilization indicating system

Assignee: American Sterilizer Co
•
Filing: 1982-09-30
•
Granted: —
•
Expires: 2002-09-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A biological system for use in sterilization processes. The system contains a container having test spores and a growth medium therein and means for bringing the medium into effective contact with the spores. The container includes a closure providing a tortuous path from the exterior to the interior of the container.

Inventors

  • 👤 David A. Karle
  • 👤 Raymond C. Kralovic

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 03:38
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/02; C12Q1/22; Y; Y10; Y10S; Y10S435/00; Y10S435/81

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 152 words
A biological indicating system for use in sterilization processes comprising: a container having access means for providing a path of unobstructed fluid communication between the interior of said container and the surrounding environment outside; test spores present within said container; a medium adapted to induce growth of said spores, said medium being present in said container but out of effective contact with said spores; a closure for said container access means, said closure being movable with respect to said access means from a first position, wherein said path of fluid communication is a tortuous path defined by a portion of the body of said container and a portion of the body of said closure, and a second position, wherein said path of fluid communication is blocked by a sealing engagement between portions of said closure and portions of said container; and means for bringing said medium into effective contact with said spores.
Claim 2
Dependent Claim 152 words
A biological indicating system for use in sterilization processes comprising: a container having access means for providing a path of unobstructed fluid communication between the interior of said container and the surrounding environment outside; test spores present within said container; a medium adapted to induce growth of said spores, said medium being present in said container but out of effective contact with said spores; a closure for said container access means, said closure being movable with respect to said access means from a first position, wherein said path of fluid communication is a tortuous path defined by a portion of the body of said container and a portion of the body of said closure, and a second position, wherein said path of fluid communication is blocked by a sealing engagement between portions of said closure and portions of said container; and means for bringing said medium into effective contact with said spores.
Claim 3
Dependent Claim 30 words
The system recited in claim 1 wherein: said medium is brought into effective contact with said spores upon movement of said closure from said first position to said second position.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag