Disposable microscope slide dispenser

• US 5,950,865 A
• Filed: 01/02/1998
• Issued: 09/14/1999
• Est. Priority Date: 01/02/1998
• Status: Expired due to Fees

• Current Assignee: Cesar Menes
• Original Assignee: Cesar Menes
• Inventors: Menes, Cesar
• Primary Examiner(s): Noland, Kenneth W.
• Application Number:
  US09/002,444
• Time in Patent Office: 620 Days
• Field of Search: 221/232, 221/268, 221/226, 221/279, 221/259, 221/178, 221/190, 221/258, 221/281
• US Class Current: 221/232
• CPC Class Codes: B65H 1/06 for separation from bottom of pile
• CPC Class Codes: B65H 2301/42322 from bottom of the pile
• CPC Class Codes: B65H 2403/941 Manually powered handling device
• CPC Class Codes: B65H 3/24 by pushers engaging the edges of the articles

Abstract

A microscope slide dispenser is formed with a base having a slide dispensing mechanism and a disposable, plastic slide case that is removably mounted atop the base. Positioning members on the base interact with corresponding members on the case to properly position the slide upon a seating platform. A slide carrier has a finger that projects upwardly from the base and engages the rear edge of the lowermost of a plurality of microscope slides vertically stacked in the case. The case is provided with carrier finger opening and a slide dispensing slot. Operation of the dispensing mechanism engages the carrier finger behind the lowermost slide and pushes it out of the slide case through the slide dispensing slot. The carrier is spring biased so that the slide engaging finger returns to a slide engaging position behind the next slide, which drops down in place of the slide ejected. Once all slides have been ejected from the case, the case is discarded.

Claims

1. A microscope slide dispenser comprising:

a hollow dispenser base having a floor, a horizontally disposed slide case seating platform that defines a carrier finger opening therethrough and a slide case seat thereatop, base sides supporting said seating platform above said base floor, and at least one horizontally oriented dispenser actuator slot defined in at least one of said base sides,

a slide carrier mounted in said base and having a slide engaging finger projecting upwardly through said carrier finger opening in said platform and having at least one actuator handle projecting through said at least one dispenser actuator slot, whereby said slide carrier is mounted for reciprocal movement relative to said base so that said slide engaging finger travels in a prescribed horizontal path between a slide engaging position and a slide ejection position within the limits of said carrier finger opening in said platform and said carrier is advanced by manually forcing said at least one actuator handle relative to said at least one dispenser actuator slot,

a disposable slide case having first and second pairs of mutually perpendicular, upright side walls, a slide case roof, and a slide case floor all permanently fastened to each other to form a hollow slide cavity therewithin shaped as a rectangular prism, and wherein an actuator access opening is defined in said slide case floor, and wherein a slide ejection slot is defined in one of said side walls in said first pair of side walls immediately adjacent to said slide case floor, and wherein said slide case is removably seatable on said slide case seating platform such that said actuator access opening in said slide case floor overlies said carrier finger opening in said base platform and such that said carrier finger projects through said slide case floor and into said slide cavity, and

a plurality of flat, microscope slides stacked within said slide storage cavity and removable therefrom only through said slide ejection slot by advancement of said carrier.

2. A microscope slide dispenser according to claim 1 wherein said carrier finger opening and said actuator access opening are rectangular openings elongated in a direction parallel to said second pair of side walls and the width of said walls in said second pair of side walls is more than twice the width of said walls in said first pair of side walls, and further comprising at least one vertically oriented slide case divider located proximate to the other side wall in said first pair of side walls, whereby said at least one divider divides said slide cavity into a slide storage compartment that overlies only a portion of said actuator access opening in said slide case floor and only a portion of said carrier finger opening in said platform, and a carrier return compartment that overlies the remaining portions of said actuator access opening and said carrier finger opening, whereby said divider provides clearance above said actuator access opening for said slide engaging finger to travel the entire length of said prescribed horizontal path between said slide engaging position and said slide ejection position.

3. A microscope slide dispenser according to claim 2 wherein said at least one divider includes a flat, vertical partition that extends between said side walls in said second pair of sidewalls and terminates above the level of said slide engaging finger when said slide case is seated on said slide case seating platform.

4. A microscope slide dispenser according to claim 1 further comprising a track mechanism in said base to hold said carrier finger at a fixed elevation relative to said slide case floor as it travels in said prescribed horizontal path.

5. A microscope slide dispenser according to claim 4 further comprising a flat, horizontal shelf secured to said base sides beneath said platform and in spaced separation therefrom, and said carrier is further comprised of an upper arm having a forward end and an opposite, rearward end that terminates in said carrier finger, and a lower arm having a forward end and a rearward end, and said arms are joined together at their forward ends in front of said shelf, whereby said arms extend rearwardly in mutually parallel and horizontal alignment above and beneath said shelf, so that said arms of said carrier and said shelf together form said track mechanism, and said carrier is further comprised of a pair of actuator handles as aforesaid and said base is formed with a pair of dispenser actuator slots as aforesaid, and said actuator handles extend transversely from said first ends of said arms and perpendicular to said arms through said dispenser actuator slots on opposite sides of said base.

6. A microscope slide dispenser according to claim 1 further comprising a spring housed within said base and acting between said carrier and said base to bias said slide engaging finger to said slide engaging position which is remote from said slide ejection slot.

7. A microscope slide dispenser according to claim 1 wherein said slide case seating platform is provided with seating devices that interact with said slide case to seat said slide case atop said seating platform and restrain said slide case from horizontal movement relative to said base.

8. A microscope slide dispenser according to claim 7 wherein said seating devices are formed as restraining members that project upwardly from said platform to snugly embrace said second pair of case side walls therewithin.

9. A microscope slide dispenser according to claim 8 wherein at least some of said restraining members and said second pair of side walls of said case are formed with vertically oriented, interengageable ribs and grooves whereby said restraining members permit relative vertical movement between said slide case and said slide case seating platform and prohibit relative longitudinal and transverse movement therebetween.

10. A microscope slide dispenser according to claim 1 wherein said slide case is formed as a disposable plastic slide shipment and storage box.

11. A microscope slide dispenser according to claim 10 wherein said roof, said floor, and all but a single one of said slide case walls are formed as a unitary, molded structure, and said single one of said slide case walls is permanently secured to said roof, said floor and said other slide case wall once said microscope slides are stacked in said slide storage cavity.

12. A microscope slide dispenser according to claim 1 further comprising a resilient spacer located in said slide storage cavity between said microscope slides and said roof of said case.

13. In a microscope slide dispenser having a base with a dispensing mechanism including a slide engaging finger that projects upwardly from said base and which is movable relative thereto along a slide ejection path, a slide case located atop said base, and a plurality of smooth, flat microscope slides vertically stacked within said slide case, the improvement wherein said slide case is disposable and seats upon and is removable from said base and is formed with confining floor, roof, and side wall members that are permanently sealed together to encapsulate said slides within said slide case with the lowermost of said flat slides in contact with said slide case floor, and said slide case floor has an actuator access opening therein to receive said slide engaging finger in its movement along said slide ejection path, and a slide ejection slot is defined within one of said side wall members immediately adjacent to said floor member and lying in alignment with said slide ejection path, whereby said slide engaging finger is engageable with said lowermost of said slides to eject it from said case through said slide ejection slot as said slide engaging finger moves along said slide ejection path toward said slide ejection slot.

14. A microscope slide dispenser according to claim 13 wherein said slide case encloses a slide cavity and is provided with a divider that extends parallel to and is located remote from said slide wall member in which said slide ejection slot is formed to delineate said slide cavity into a slide storage compartment bounded on one side by said slide wall in which said slide ejection slot is formed and a return compartment remote from said slide wall in which said slide ejection slot is formed.

15. A microscope slide dispenser according to claim 14 further comprising a spring biasing said slide engaging finger to a position on said slide ejection path remote from said slide ejection slot and within said return compartment of said slide case.

16. A microscope slide dispenser according to claim 13 further comprising case retaining members projecting upwardly above said base and said case retaining members seat said slide case in a predetermined position relative to said slide engaging finger and restrain said slide case from horizontal movement relative to said base when said slide case is seated atop said base.

17. A microscope slide dispenser according to claim 13 wherein said slide case is formed as a disposable plastic slide shipment and storage box.

18. In a combination, a microscope slide dispenser base defining a horizontal seating platform having a carrier finger opening therein, a dispenser mechanism mounted on said slide dispenser base and including a carrier that has a slide engaging finger that projects upwardly from said base through said carrier finger opening in said seating platform and is movable in longitudinal reciprocation along a horizontal, linear slide ejection path, a plurality of smooth, flat microscope slides vertically stacked one atop another, and a disposable slide case having side walls, a roof, and a floor and defining a slide storage cavity within which said vertically stacked, flat slides are encapsulated, with the lowermost of said slides resting upon said floor of said case, and wherein said floor of said case has an actuator access opening defined therein and one of said side walls has a slide ejection slot defined therein adjacent to said floor, and said case is positionable upon said seating platform and said carrier finger engages said lowermost of said slides and said slide ejection slot is linearly aligned with said slide ejection path, and said case is removable from said base.

19. A microscope slide dispenser according to claim 18 wherein said seating platform is provided with case locator members that guide said slide case into a predetermined seating position in which said lowermost slide is located between said slide ejection slot and said carrier finger.