Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Reexamination Certificate
2000-04-03
2001-09-11
Nguyen, Thong (Department: 2872)
Optical: systems and elements
Extended spacing structure for optical elements
Extension of tubular element adjustable
C359S399000, C359S405000, C359S503000, C359S828000
Reexamination Certificate
active
06286963
ABSTRACT:
BACKGROUND OF INVENTION
FIELD OF INVENTION
This invention relates to telescopes and, more particularly, to quick connect and disconnect means for telescope accessories.
Telescopes such as the Schmidt Cassegrain Telescopes can be used with many accessories including astrophotography devices. A fine thread accessory ring of conventional diameter is provided on these telescopes.
The conventional method of changing accessories is to unscrew the accessory to remove it and then to thread the new accessory back on the telescope accessory ring. Since this is usually done in the dark so as not to affect the night vision of the user, cross threading of the fine threads on the accessory ring is common. Once the accessory is cross threaded then the whole rear plate of the telescope must be removed and replaced.
Using the conventional method of changing accessories, the skilled astronomer still takes 10 to 12 seconds to install and 7 to 8 seconds to remove the same.
CONCISE EXPLANATION OF REFERENCES
There are no known prior art references.
BRIEF SUMMARY OF INVENTION
After much research and study into the above mentioned problems, the present invention has been developed to provide a quick connect and disconnect means for telescope accessories that is mounted the standard threaded accessory ring of the telescope. Through the use of locking pin and locking slots, the male and female adapters can be connected and disconnected in one to two seconds in the dark.
In view of the above, it is an object of the present invention to provide a means for quick connect and disconnect of accessories to and from telescopes.
Another object of the present invention is to provide a means for rapidly changing accessories on telescopes including astrophotography devices.
Another object of the present invention is to provide a means for changing accessories on telescopes while eliminating the possibility of cross threading.
Other objects and advantages of the present invention will become apparent and obvious from a study of the following description and the accompanying drawings which are merely illustrative of such invention.
REFERENCES:
patent: 3831862 (1974-08-01), Calder
patent: 4600277 (1986-07-01), Murray, Jr.
patent: 4695702 (1987-09-01), Gartland
patent: 4807594 (1989-02-01), Chatenever
patent: 5054886 (1991-10-01), Ozaki et al.
patent: 5959770 (1999-09-01), Perkins et al.
Mills Law Firm PLLC
Nguyen Thong
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