The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 1986
Filed:
Oct. 04, 1983
T Charles Podvin, Poway, CA (US);
Peter J Van Benschoten, Rancho Santa Fe, CA (US);
The Micromanipulator Microscope Company, Inc., Escondido, CA (US);
Abstract
Apparatus is provided for attachment to a microscope which alternately positions a filter in alignment with the objective of the microscope and stowed along the side of the body of the microscope. A stationary post is screwed to an accessory fitting associated with the body of the microscope, and a filter holder, which includes a filter-retaining ring and an extending stem, is mounted for rotation from the end of the end of the post. To register the holder stabilized in its aligned and stowed positions, the stem rotates against a face of the post in which a groove is formed, and the stem is biased against the face by a spring so that it catches in the groove in either of the registered positions. The post is screwed to the fitting by means of a stud threaded at both ends, one end being insertable into the fitting opening and one end being insertable into an axial threaded bore of the post, and with the post in the correct rotational position, a set screw is tightened against the stud, fixing the rotational positions of the post and stud. This allows the post to be removed from and reattached to the fitting in an indexed rotational position which positions the filter holder, when in its aligned position relative to the post, directly below the objective. The filter is retained in the ring by a removable O-ring, whereby the filter is removable so that any one of a collection of filters may be retained in the ring.