US3804366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite flow control device
Assignee: Arco Industries Corp
•
Filing: 1972-06-05
•
Granted: 1974-04-16
•
Expires: 1992-06-05
Abstract
Abstract A flow control device such as a valve, damper and the like for controlling flow through a duct or other flow passage and including a relatively rigid main body portion composed primarily of a first organic resin material and a sealing portion bonded to the main body portion and composed of an elastomeric material including a second organic resin. The bond between the sealing portion and main body portion is increased by mixing some of the second organic resin material with the first organic resin material. Mounting means in the form of a pivot rod is molded to the main body portion for pivotally supporting the device in a duct or the like. The device can be made by a method including steps of mixing the second organic resin in powdered form into a quantity of the first organic resin in liquid form and then pouring the mixture into a portion of a mold defining the configuration of the main body portion. Elastomeric material for the sealing portion is poured into the mold in liquid form and covers the surface of the mixture of the first organic resin and the powdered form of the second organic resin. The contents of the mold is then cured.
Inventors
- 👤 P Rubright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:48
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; B; B29; B29C; B29C39/00; B60; B60H; B60H1/00; B60H1/00642; B60H1/00664; B60H1/00671; B60H1/00678; B60H2001/007; B60H2001/00714; Y; Y10; Y10S; Y10S264/00; Y10S264/60
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
85 words
A composite flow control device comprising: a relatively rigid body portion composed primarily of a first organic resin; and an elastomeric sealing portion bonded to said body portion and projecting outwardly from the periphery thereof for resilient, sealing engagement with the wall of a duct or the like, said sealing portion being composed of a material including a second organic resin, said first organic resin having said second organic resin mixed therewith to increase the bond between said main body portion and said sealing portion.
Claim 2
Dependent Claim
85 words
A composite flow control device comprising: a relatively rigid body portion composed primarily of a first organic resin; and an elastomeric sealing portion bonded to said body portion and projecting outwardly from the periphery thereof for resilient, sealing engagement with the wall of a duct or the like, said sealing portion being composed of a material including a second organic resin, said first organic resin having said second organic resin mixed therewith to increase the bond between said main body portion and said sealing portion.
Claim 3
Dependent Claim
23 words
A device as claimed in claim 1 wherein said sealing portion is composed of vinyl plastisol, said second organic resin thus being vinyl.
Claim 4
Dependent Claim
16 words
A device as claimed in claim 2 wherein said first organic resin comprises thermosetting epoxy resin.
Claim 5
Dependent Claim
16 words
A device as claimed in claim 1 wherein said first organic resin is thermosetting epoxy resin.
Claim 6
Dependent Claim
23 words
A device as claimed in claim 4 wherein said sealing portion is composed of vinyl plastisol, said second organic resin thus being vinyl.
Claim 7
Dependent Claim
26 words
A device as claimed in claim 1 further including mounting means on said body portion for pivotally supporting the device in a duct or the like.
Claim 8
Dependent Claim
19 words
A device as claimed in claim 6 wherein said mounting means comprises a rod molded to said body portion.
Claim 9
Dependent Claim
39 words
A device as claimed in claim 7 wherein said rod has a central portion embedded in the material of said body portion, and offset end portions on said central portion which project from one side of said body portion.
Claim 10
Dependent Claim
18 words
A device as claimed in claim 8 including a crank arm formed on one of said end portions.
Claim 11
Dependent Claim
24 words
A device as claimed in claim 1 wherein said body portion comprises a flat disc with a peripheral flange projecting from one side thereof.
Claim 12
Dependent Claim
19 words
A device as claimed in claim 10 including a central bead projecting from said one side of said disc.
Claim 13
Dependent Claim
20 words
A device as claimed in claim 11 including a mounting rod having a central portion embedded in said central bead.
Claim 14
Dependent Claim
29 words
A device as claimed in claim 12 wherein said rod is formed with offset end portions extending from said central portion and projecting from one side of said disc.
Claim 15
Dependent Claim
31 words
A device as claimed in claim 13 including a locating projection formed on the periphery of said disc for providing vertical support of said disc in a duct or the like.
Claim 16
Dependent Claim
29 words
A device as claimed in claim 1 wherein said body portion includes a relatively rigid framework having a plurality of openings extending therethrough, said sealing portion overlying said openings.
Claim 17
Dependent Claim
65 words
A composite flow control device comprising: a main body portion of substantially rigid plastic material; and a sealing portion of elastomeric material bonded integrally to said main body portion, said sealing portion covering one entire side of said main body portion and projecting outwardly from the periphery of said main body portion for resilient, sealing engagement with the wall of a duct or the like.
Claim 18
Dependent Claim
65 words
A composite flow control device comprising: a main body portion of substantially rigid plastic material; and a sealing portion of elastomeric material bonded integrally to said main body portion, said sealing portion covering one entire side of said main body portion and projecting outwardly from the periphery of said main body portion for resilient, sealing engagement with the wall of a duct or the like.
Claim 19
Dependent Claim
58 words
A device as claimed in claim 16 wherein said main body portion is composed primarily of a first organic resin, and said sealing portion is composed of a material including a second organic resin, said first organic resin having said second organic resin mixed therewith to increase the bond between said main body portion and said sealing portion.
References Cited (Backward Citations)
US2867238A
Cited
US2772850A
Cited
US2923523A
Cited
US3309448A
Cited
US3363039A
Cited
US3595523A
Cited
US3671621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |