Incremental advance means

• US 5,415,060 A
• Filed: 12/01/1993
• Issued: 05/16/1995
• Est. Priority Date: 09/04/1992
• Status: Expired due to Fees

• Current Assignee: Albert M. Destefano Jr
• Original Assignee: Albert M. Destefano Jr
• Inventors: DeStefano, Albert M. Jr.
• Primary Examiner(s): LUONG, VINH
• Application Number:
  US08/160,417
• Time in Patent Office: 531 Days
• Field of Search: 74/527, 74/529, 74/528, 74/535, 74/536, 74/540, 74/541, 74/503
• US Class Current: 74/540
• CPC Class Codes: B01L 2200/025 Align devices or objects to ensure defined positions relative to each other
• CPC Class Codes: B01L 2300/0829 Multi-well plates; Microtitration plates
• CPC Class Codes: B01L 3/02 Burettes; Pipettes
• CPC Class Codes: B01L 3/5085 for multiple samples, e.g. microtitration plates
• CPC Class Codes: B01L 9/54 Supports specially adapted for pipettes and burettes automated pipetting stations G01N35/10
• CPC Class Codes: B01L 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: Y10T 403/599 Spring biased manipulator
• CPC Class Codes: Y10T 403/602 by separate spring
• CPC Class Codes: Y10T 74/20648 Interrelated lever release
• CPC Class Codes: Y10T 74/2069 Handle release
• CPC Class Codes: Y10T 74/20714 Lever carried rack

Abstract

There is provided a lab-top work station which is designed for use in the manual application of liquid to a slide or microwell plate and consists of a slide holder, a bridge for support of manual liquid dispensers at a predetermined location with respect to the slide holder, and a manual incremental advance mechanism for manually moving the slide holder a predetermined distance.

Claims

1. Incremental manual advance means comprised of a control rod having both a surface with notches spaced a predetermined distance apart and an unnotched surface, manual lever means secured to the control rod to rotate the control rod and to advance the control rod the incremental distance corresponding to the distance between said notches, ratchet means engaging with the notched surface of the control rod and to advance said predetermined distance with the control rod, holder means secured to said ratchet means to move with the ratchet means, said ratchet means contacting the unnotched surface of the control rod upon manual rotation of the control rod and to slide along the unnotched surface of the control rod without motion of the control rod, and spring means returning the control rod to the original position after each incremental advance.