Patent US5074334A successfully refreshed from Google Patents.
US5074334A
Expired / Lapsed
US
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Multi-way cock
Assignee: Terumo Corp
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Filing: 1990-07-27
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Granted: 1991-12-24
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Expires: 2010-07-27
Abstract
Abstract A multi-way cock comprises a housing including a cylinder having a plurality of branch tubes extending from the periphery thereof, and a plug including a barrel adapted to be rotatably fitted in the cylinder and having a corresponding plurality of channels formed therein, the channels corresponding to the branch tubes in assembled condition. The barrel is formed of a polyester elastomer.
Inventors
- 👤 Tsuneyoshi Onodera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/085; F16K11/0853; A; A61; A61M; A61M39/00; A61M39/22; A61M39/223; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/86823
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
A multi-way cock comprising a housing including a cylindrical portion having a plurality of branch tubes extending from the outer periphery thereof, and a plug including a barrel adapted to be rotatably fitted in the cylindrical portion of said housing and having a corresponding plurality of channels formed therein, said channels corresponding to said branch tubes in assembled condition, wherein said barrel is formed of a polyester elastomer having the formula: ##STR3## wherein n is a number ranging from 1 to 50, m is a number ranging from 1 to 5, p is a number ranging from 1 to 8, q is a number ranging from 1 to 8, and x is a number ranging from 5 to 50.
Claim 2
Dependent Claim
119 words
A multi-way cock comprising a housing including a cylindrical portion having a plurality of branch tubes extending from the outer periphery thereof, and a plug including a barrel adapted to be rotatably fitted in the cylindrical portion of said housing and having a corresponding plurality of channels formed therein, said channels corresponding to said branch tubes in assembled condition, wherein said barrel is formed of a polyester elastomer having the formula: ##STR3## wherein n is a number ranging from 1 to 50, m is a number ranging from 1 to 5, p is a number ranging from 1 to 8, q is a number ranging from 1 to 8, and x is a number ranging from 5 to 50.
Claim 3
Dependent Claim
21 words
The cock of claim 1 wherein said polyester elastomer has a modulus in flexure of at least 800 kgf/cm 2 .
Claim 4
Dependent Claim
14 words
The cock of claim 1 wherein said housing is formed of a rigid resin.
Claim 5
Dependent Claim
27 words
The cock of claim 1 wherein the openings that said channels define at the outer periphery of said barrel have a diameter of 1.5 to 5 mm.
Claim 6
Dependent Claim
44 words
The cock of claim 1 wherein said plug includes a lever for turning the plug in the housing, and the outer surface of said lever is entirely or partially coated with a resin which is different in color and/or appearance from the barrel-forming elastomer.
Claim 7
Dependent Claim
15 words
The cock of any one of claims 1 to 5 which is a three-way cock.
Claim 8
Dependent Claim
17 words
The cock of any one of claims 1 to 5 which is useful in the medical field.
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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) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |