Slide for chemical analysis

• US 4,668,472 A
• Filed: 11/15/1984
• Issued: 05/26/1987
• Est. Priority Date: 11/24/1983
• Status: Expired due to Fees

• Current Assignee: Konishiroku Photo Industry Co., Ltd.
• Original Assignee: Konishiroku Photo Industry Co., Ltd.
• Inventors: Ikariya, Toshiyuki, Sakamoto, Norio, Yanagisawa, Akira, Nakamura, Masao, Takahashi, Kiyohiko
• Primary Examiner(s): Turk, Arnold
• Application Number:
  US06/672,098
• Time in Patent Office: 922 Days
• Field of Search: 422/58, 422/61, 422/56, 422/66, 422/102, 422/104, 206/305, 206/455, 206/456, 356/244, 356/246, 40/158 R, 40/158 B
• US Class Current: 422/401
• CPC Class Codes: B29C 65/00 Joining or sealing of preformed parts , e.g. welding of plastics materials; Apparatus therefor general aspects of processes or apparatus for joining preformed parts B29C66/00; using porous material formed by internal pressure generated therein for joining preformed parts B29C44/1228, B29C44/326
• CPC Class Codes: B29C 65/08 using ultrasonic vibrations non-plastics element to plastics elements B29C65/645
• CPC Class Codes: B29C 66/112 Single lapped joints
• CPC Class Codes: B29C 66/131 Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
• CPC Class Codes: B29C 66/53461 joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
• CPC Class Codes: B29C 66/8432 Machines for making separate joints at the same time mounted in parallel or in series
• CPC Class Codes: B29C 66/849 Packaging machines
• CPC Class Codes: B29L 2031/7164 Blister packages
• CPC Class Codes: B65B 61/08 using rotary cutters
• CPC Class Codes: B65B 9/045 for single articles, e.g. tablets
• CPC Class Codes: G01N 1/2813 Producing thin layers of samples on a substrate, e.g. smearing, spinning-on G01N1/30 takes precedence
• CPC Class Codes: G01N 1/286 involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising microtomes G01N1/06; pulverising in general B02C; mixing in general B01F
• CPC Class Codes: G01N 2001/2833 Collecting samples on a sticky, tacky, adhesive surface
• CPC Class Codes: G01N 2001/2873 Cutting or cleaving
• CPC Class Codes: G01N 33/525 Multi-layer analytical elements

Abstract

A process for the continuous preparation of slides to be chemically analyzed comprises forming regularly a plurality of hollows on an advancing web material; putting a piece of film to be chemically analyzed in each of the hollows; sticking a long covering member having a plurality of apertures corresponding in their positions to the hollows on the web material onto the surface of the web material so that the apertures and the hollows on the web material are in registration; and cutting the circumference outside of each of the hollows. Also disclosed is a slide to be chemically analyzed which comprises a web material having a hollow in the central region thereof in which a film to be chemically analyzed is put, a covering member having an aperture on the surface thereof stuck to the web material; and downwardly extending flanges on a circumferential portion of the slide having heights substantially equal to that of the hollow to stabilize positioning of the slide.

Claims

1. A slide to be chemically analyzed, comprising:

a web material having a hollow substantially in a central region thereof, said hollow protruding downwardly from the bottom of a substantially central portion of said web material, said web material having an upper surface surrounding said hollow;

a film received in said hollow and which is to be chemically analyzed;

a covering member stuck to said upper surface of said web material for covering at least a portion of said hollow to retain said film in said hollow, said covering member having an opening therein in communication with said hollow, said opening being smaller than said film so as to prevent said film from coming out of said hollow; and

downwardly extending flanges on a circumferential portion of said web material or covering member and located outside of and spaced a substantial distance from said hollow, said flanges each having a height substantially equal to that of said hollow to stabilize positioning of said slide in use, said flanges having a thickness in a transverse direction of said slide which is substantially less than the transverse dimension of said slide.

2. A slide as claimed in claim 1, wherein said flanges comprise bent-over peripheral portions of said web material.

3. A slide as claimed in claim 1, wherein said flanges comprise flange members secured to the underside of circumferential portions of said web material.

4. A slide as claimed in claim 1, wherein said web material comprises openings at circumferential portions thereof, and said covering material extends through said openings in the direction of said hollow to form said flanges.

5. A slide as claimed in claim 1, wherein said covering member is adhesively secured to an upper surface of said web material.

6. A slide as claimed in claim 1, wherein said flanges are integrally formed on said slide from at least one of said web material and covering member.

7. A slide as claimed in claim 1, wherein said flanges comprise bent-over peripheral portions of said covering member.

8. The slide of claim 7, wherein said bent-over portions of said covering member extend around peripheral portions of said web material.

9. A slide as claimed in claim 1 wherein said flanges are arranged at least on two opposite sides of said hollow.

10. A slide as claimed in claim 9, wherein said flanges are arranged at least on two pairs of opposing sides of said hollow.