Patent US4467535A successfully refreshed from Google Patents.
US4467535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laundry drier dividers
Assignee: Individual
•
Filing: 1983-03-04
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Granted: 1984-08-28
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Expires: 2003-03-04
Abstract
Abstract This invention relates to a foldable, removable drier divider assembly with removable suction cup pieces that can be easily inserted into a household drier and quickly secured in its operating unfolded position to act as a drier drum divider for separating materials or objects during the drying process in order to dry several non-mixable materials or objects in one operation that otherwise would take several drying operations. The drier assembly consists essentially of a rotatable core unit with a plurality of divider fins extending from it whose outer periphery in their open operating position substantially fit and rotate with the interior of the rotating drier drum without rubbing against the stationary portions of the drier interior. The centering and securing means for this removable assembly is accomplished effectively by having the rotatable core unit provided with a central hollow cylindrical opening throughout its length to receive a tubular cylindrical centering rod around which the core unit rotates and adjustable suction cup end pieces screw connected to each end of the cylindrical rod and the suction cup action against the stationary portion of the drier interior opposite the drier door as well as against the inside of the drier door in its closed operating position actually centers and secures the entire assembly during operation by the simple turning adjustment of the adjustable suction cup end pieces to obtain the desired distance between suction cup faces.
Inventors
- 👤 Dorothy A. Hardison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:43
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/02; D06F58/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
245 words
A removable drying apparatus for use in a rotary drum dryer comprising: a rotatable core unit, said core unit having a cylindrical opening extending lengthwise through the center of said core unit; a plurality of perforated lower fin dividers integral with and extending outwardly from said core unit; a perforated upper fin divider foldably connected to each of said lower fin dividers; a centering rod disposed within said cylindrical opening of said core unit around which said core unit will rotate, said centering rod being provided with a threaded opening in the center of each end portion of said tubular centering rod; a pair of suction cup pieces, each consisting of a flexible suction cup face portion and a suction cup base portion integral with and opposite of said suction cup face portion, and said suction cup base portion being provided with a cylindrical opening extending part way into the center of said suction cup base portion perpendicular to the plane of said flexible suction cup face outer periphery; a pair of adjusting connecting bolts, each threaded on one end portion and substantially smooth on its other end portion to connect each of said suction cup pieces one to each end of said centering piece; the threaded end portion being provided for adjustably screwing into each of the said threaded openings on said center rod, and the smooth end portion for slidably fitting snuggly into the said cylindrical opening in said suction cup base portion.
Claim 2
Dependent Claim
245 words
A removable drying apparatus for use in a rotary drum dryer comprising: a rotatable core unit, said core unit having a cylindrical opening extending lengthwise through the center of said core unit; a plurality of perforated lower fin dividers integral with and extending outwardly from said core unit; a perforated upper fin divider foldably connected to each of said lower fin dividers; a centering rod disposed within said cylindrical opening of said core unit around which said core unit will rotate, said centering rod being provided with a threaded opening in the center of each end portion of said tubular centering rod; a pair of suction cup pieces, each consisting of a flexible suction cup face portion and a suction cup base portion integral with and opposite of said suction cup face portion, and said suction cup base portion being provided with a cylindrical opening extending part way into the center of said suction cup base portion perpendicular to the plane of said flexible suction cup face outer periphery; a pair of adjusting connecting bolts, each threaded on one end portion and substantially smooth on its other end portion to connect each of said suction cup pieces one to each end of said centering piece; the threaded end portion being provided for adjustably screwing into each of the said threaded openings on said center rod, and the smooth end portion for slidably fitting snuggly into the said cylindrical opening in said suction cup base portion.
Claim 3
Dependent Claim
61 words
A removable drying apparatus as set forth in claim 1 with the inclusion of an adjustable threaded coupling screwed on each end portion of said elongated tubular centering piece to receive the said threaded end portion on the said adjusting connecting bolt, and said adjustable threaded coupling outer surface being the bearing surface around which the said core unit will rotate.
Claim 4
Dependent Claim
41 words
A removable drying apparatus as set forth in claim 1 with the foldable means being a perforated flexible sheet material securely attached to both the lower and upper fin dividers on one side only, thus permitting folding in one direction only.
Claim 5
Dependent Claim
37 words
A removable drying apparatus as set forth in claim 1 with the foldable means being a hinge connection connecting the lower and upper fin dividers and permitting folding of the upper fin divider in one direction only.
Claim 6
Dependent Claim
38 words
A removable drying apparatus as set forth in claim 3 with a securing means for securely holding the lower and upper fin dividers in the same plane when in their open and unfolded operating position within the drier.
Claim 7
Dependent Claim
61 words
A removable drying apparatus as set forth in claim 5 with the securing means being provided by a magnetic piece attached to the top edge of the lower fin divider and the corresponding bottom edge of the upper fin divider, so as to hold the lower and upper fin dividers in the same plane when in their open or unfolded position.
Claim 8
Dependent Claim
38 words
A removable drying apparatus as set forth in claim 4 with a securing means for securely holding the lower and upper fin dividers in the same plane when in their open and unfolded operating position within the drier.
Claim 9
Dependent Claim
45 words
A removable drying apparatus as set forth in claim 7 with the securing means being provided by a pair of magnets one attached to the upper edge of said lower fin divider and one correspondingly attached to the lower edge of said upper fin divider.
Claim 10
Dependent Claim
20 words
A removable drying apparatus as set forth in claim 1 with said centering rod being slightly flexible and not rigid.
Claim 11
Dependent Claim
20 words
A removable drying apparatus as set forth in claim 2 with said centering rod being slightly flexible and not rigid.
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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) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |