Bilateral slit assembly, and method of use
US5661589A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Feb 24, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for translating applied linear motion into a slit width present between facing edges of two "Knife-blade" elements. In its preferred embodiment, two slide assemblies are firmly affixed to a frame such that loci of motion of slide elements thereof form an acute angle therebetween. Lower ends of each slide element, as viewed in vertically oriented frontal elevation, allow horizontal motion therebetween when said slide element lower ends are caused to simultaneously move vertically. An alternative embodiment provides that the slide elements be oriented such that said loci of motion of said slide elements are, for instance, horizontally directed. In its preferred embodiment the simultaneous motion of the slide elements is effected by a motor, preferably a precisely controlled computer driven stepper motor, which motor causes a threaded shaft therein to move vertically as a result of screw thread translation of motor imparted rotational motion to said threaded shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.