US4770443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inserted part of an industrial endoscope
Assignee: Olympus Corp
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Filing: 1987-04-28
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Granted: 1988-09-13
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Expires: 2007-04-28
Abstract
Abstract An insertable part of an industrial endoscope having an insertable curvable portion and a proximal flexible portions, the portions being interconnected and joined in axial alignment by a connecting means. A protective cover covering the insertable portion and a protective cover covering the proximal portion, the covers being interconnected and joined axially to each other and to the connecting means by interengaging concavoconvex parts having radially aligned grooves with a plurality of plate springs in one of such grooves projecting into the other of such grooves and being compressible through holes in one of the grooves into the other of the grooves to release the abutting ends of the protective covers.
Inventors
- 👤 Tsutomu Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:51
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/24; G02B23/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
An insertable part of an industrial endoscope having a curvable portion formed near the top of the insertable portion, a flexible proximal portion and means interconnecting and joining said curvable insertable portion and said flexible proximal portion in axial alignment characterized in that a tubular protective cover is fitted to and extends axially along the outer periphery of said curvable insertable portion and that a tubular protective cover is fitted to and extends axially along the outer periphery of said flexible proximal portion, said insertable portion protective cover and said proximal portion protective cover abutting at one of their ends and being interconnected and joined at said abutting ends in axial alignment, one with the other, and joined to said means interconnecting and joining said insertable portion and said proximal portion by means at said abutting ends, said insertable portion protective cover being connected at its opposite end to the distal end of said curvable insertable portion and said flexible portion protective cover being connected at its opposite end to the proximal end of said flexible proximal portion.
Claim 2
Dependent Claim
178 words
An insertable part of an industrial endoscope having a curvable portion formed near the top of the insertable portion, a flexible proximal portion and means interconnecting and joining said curvable insertable portion and said flexible proximal portion in axial alignment characterized in that a tubular protective cover is fitted to and extends axially along the outer periphery of said curvable insertable portion and that a tubular protective cover is fitted to and extends axially along the outer periphery of said flexible proximal portion, said insertable portion protective cover and said proximal portion protective cover abutting at one of their ends and being interconnected and joined at said abutting ends in axial alignment, one with the other, and joined to said means interconnecting and joining said insertable portion and said proximal portion by means at said abutting ends, said insertable portion protective cover being connected at its opposite end to the distal end of said curvable insertable portion and said flexible portion protective cover being connected at its opposite end to the proximal end of said flexible proximal portion.
Claim 3
Dependent Claim
44 words
An insertable part of an industrial endoscope according to claim 1, characterized in that said tubular protective cover on the outer periphery of said curvable insertable portion is more flexible than said tubular protective cover on the outer periphery of said flexible proximal portion.
Claim 4
Dependent Claim
25 words
An insertable part of an industrial endoscope according to claim 1, characterized in that said tubular protective covers are tubular members of knitted fine wires.
Claim 5
Dependent Claim
54 words
An insertable part of an industrial endoscope according to claim 3, characterized in that the diameter of said knitted fine wires in said tubular protective cover on the outer periphery of said insertable portion are smaller than said knitted fine wires in said tubular protective cover on the outer periphery of said proximal portion.
Claim 6
Dependent Claim
99 words
An insertable part of an industrial endoscope according to claim 1, characterized in that said means at said abutting ends of said protective covers includes a connecting means on the abutting end of each of said covers, said connecting means each including said plurality of concavoconvex parts on the connecting means of one of said abutting ends of one of said protective covers mating with and being axially movable with respect to said plurality of concavoconvex parts on the connecting means of the other of said abutting ends of said protective cover for connecting and disconnecting said abutting ends.
Claim 7
Dependent Claim
108 words
An insertable part of an industrial endoscope according to claim 5, characterized in that said concavoconvex parts on said connecting means include radially aligned grooves formed in said concavoconvex parts, the aligned groove in one of said connecting means having plate springs projecting into the aligned groove on the other of said connecting means and guide holes in one of said connecting means extending through said groove and forming an opening for pressing said plate springs radially inward for releasing said plate springs from one of said grooves and compressing said plate springs into the other of said grooves for separating the abutting ends of said protective covers.
References Cited (Backward Citations)
US2479483A
Cited
GB784740A
Cited
FR1227327A
Cited
US3081767A
Cited
US3768842A
Cited
US3941410A
Cited
US4341205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |