US4655922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire locking structure for a filter device
Assignee: Arai Machinery Corp
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Filing: 1985-11-19
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Granted: 1987-04-07
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Expires: 2005-11-19
Abstract
Abstract This invention relates to a wire locking structure for a filter device, in which an outer circumference of a cylinder body is provided with a screw thread portion. The screw thread portion is wrapped by a wire of isosceles triangle in section. An end of the wire is drawn into a recess and firmly supported in a U-shape by an insert member to be inserted in the recess, thereby a conventional welding means has been removed.
Inventors
- 👤 Koichi Arai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:46
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/088; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/44; B01D29/48; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
A wire locking structure for a filter device, comprising: a cylinder body having a plurality of passages formed on an outer circumference thereof, said plurality of passages communicating with a cavity of said cylinder; a screw thread portion formed on said outer circumference containing screw bottoms; a wire wrapped around said screw thread by inserting said wire towards said screw bottoms of said screw thread portion; a recess in said cylinder body for an end portion of said wire; an insert member for said recess including a cutaway portion for receiving an end portion of said wire; and bolt means to secure said insert member within said recess.
Claim 2
Dependent Claim
108 words
A wire locking structure for a filter device, comprising: a cylinder body having a plurality of passages formed on an outer circumference thereof, said plurality of passages communicating with a cavity of said cylinder; a screw thread portion formed on said outer circumference containing screw bottoms; a wire wrapped around said screw thread by inserting said wire towards said screw bottoms of said screw thread portion; a recess in said cylinder body for an end portion of said wire; an insert member for said recess including a cutaway portion for receiving an end portion of said wire; and bolt means to secure said insert member within said recess.
Claim 3
Dependent Claim
26 words
The wire locking structure as defined in claim 1 wherein said body proximate said recess and said insert member are formed with cooperating counter-sunk hole portions.
Claim 4
Dependent Claim
30 words
The wire locking structure as defined in claim 2 wherein said locking means is a threaded bolt for positioning within a counter-sunk hole formed by said cooperating counter-sunk hole portions.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |