Patent US3638991A successfully refreshed from Google Patents.
US3866950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-size adapters
Assignee: Versatile Industries Inc
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Filing: 1973-05-21
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Granted: 1975-02-18
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Expires: 1993-05-21
Abstract
Abstract A versatile multi-size adaptor to be connected to a duct in a hot or cold air distribution system and having a box-like air discharge outlet in which an air diffuser can be mounted, and having an air inlet made in stepped sections of different size for enabling the same to be connected to one of several sizes of ducts to suit installation requirements A modified embodiment includes a bellows section between the air outlet and the stepped air inlet that can be axially compressed, or extended, and/or flexed so that the stepped inlet can be connected to a duct disposed at an angle to the outlet. Both embodiments have a groove in each stepped section to reduce wall thickness and facilitate breaking or cutting away of the section or sections of smaller size than that of the particular duct to be connected to the inlet end of the adapter.
Inventors
- 👤 Edward L Skoch
- 👤 Sigfried W Anderson
- 👤 Ronald R Slogick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/26; F16L47/265; F16L21/00; F16L21/002; F24; F24F; F24F13/00; F24F13/02; F24F13/0218
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
140 words
A multi-size connector unit for use in air distribution systems, comprising: an adapter having an outlet end of generally rectangular, box-like configuration to receive an air diffuser, and having an inlet end including at least two axially extending wall sections of different size to fit ducts of corresponding size; a transverse wall connecting the lower end of the smaller section to the upper end of the larger section, said transverse wall having a groove formed therein at its juncture with the wall of said larger section to reduce the thickness of the transverse wall at said juncture to facilitate separation of the smaller section from the larger section by severing along said groove; and a bellows section comprising a series of interconnected convolutions generally V-shaped in radial cross-section disposed between the inlet end and the outlet end of the adapter.
Claim 2
Dependent Claim
140 words
A multi-size connector unit for use in air distribution systems, comprising: an adapter having an outlet end of generally rectangular, box-like configuration to receive an air diffuser, and having an inlet end including at least two axially extending wall sections of different size to fit ducts of corresponding size; a transverse wall connecting the lower end of the smaller section to the upper end of the larger section, said transverse wall having a groove formed therein at its juncture with the wall of said larger section to reduce the thickness of the transverse wall at said juncture to facilitate separation of the smaller section from the larger section by severing along said groove; and a bellows section comprising a series of interconnected convolutions generally V-shaped in radial cross-section disposed between the inlet end and the outlet end of the adapter.
Claim 3
Dependent Claim
142 words
A multi-size connector unit, comprising: an adapter having an outlet end and an inlet end, a horizontal wall between said outlet end and said inlet end connecting said outlet and inlet end together, said inlet end including at least two axially extending wall sections of different size, a transverse wall disposed parallel with said horizontal wall and connecting the lower end of the smaller size section to the upper end of the larger size section, said transverse wall having a V-shaped groove formed therein at its juncture with the wall of said larger size section, to reduce the thickness of said transverse wall to faciliTate separation of the smaller size section from the larger size section by severing along said groove, the bottom of said V-shaped groove being vertically aligned with the inner face of the wall of the larger size section.
Claim 4
Dependent Claim
142 words
A multi-size connector unit, comprising: an adapter having an outlet end and an inlet end, a horizontal wall between said outlet end and said inlet end connecting said outlet and inlet end together, said inlet end including at least two axially extending wall sections of different size, a transverse wall disposed parallel with said horizontal wall and connecting the lower end of the smaller size section to the upper end of the larger size section, said transverse wall having a V-shaped groove formed therein at its juncture with the wall of said larger size section, to reduce the thickness of said transverse wall to faciliTate separation of the smaller size section from the larger size section by severing along said groove, the bottom of said V-shaped groove being vertically aligned with the inner face of the wall of the larger size section.
Claim 5
Dependent Claim
37 words
A unit as claimed in claim 2 wherein the axially extending wall section are cylindrical and the lower end of the smaller section is connected by an annular wall to the upper end of the larger section.
Claim 6
Dependent Claim
39 words
A unit as claimed in claim 2, wherein the inlet end comprises at least three cylindrical sections, each of a different diameter corresponding to a standard size duct, and wherein an annular wall connects the sections in step formation.
Claim 7
Dependent Claim
18 words
A unit as claimed in claim 2, wherein the outlet includes a chamber to receive an air diffuser.
Claim 8
Dependent Claim
43 words
A unit as claimed in claim 2, wherein the outlet end has an outwardly extending flange, and wherein the flange has a portion shaped to form a projection on one side thereof, said projection having a conical recess for receiving a screw fastener.
Claim 9
Dependent Claim
32 words
A unit as claimed in claim 6, wherein the bottom wall of the conical recess is relatively thin compared to the flange and is flexible and has an opening at its apex.
Claim 10
Dependent Claim
38 words
A unit as claimed in claim 2, in which a generally cylindrical bellows section comprising a series of interconnected convolutions generally v-shaped in radial cross-section is disposed between the inlet end and the outlet end of the adapter.
Claim 11
Dependent Claim
47 words
A unit as claimed in claim 8, in which the bellows section is extensible and contractible axially and is capable of being flexed so that the inlet end can be moved toward or away from the outlet end and/or disposed at an angle to the outlet end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |