US3829952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming a cylinder and inserting it into a battery can
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1973-03-07
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Granted: 1974-08-20
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Expires: 1993-03-07
Abstract
Abstract An apparatus for forming a cylinder is disclosed. It is useful, for example, for forming cylindrical battery can separator liners from a continuous strip of paper liner stock. The apparatus includes a forming tube having a receiving chamber that is defined by the inner surface of an outer tubular member and the outer surface of a central cylindrical member. The apparatus also includes means for sequentially positioning said forming tube at receiving and eject stations, and means for feeding the leading edge of a predetermined length of liner into said receiving chamber through a longitudinal slot in said outer tubular member. The outer tubular member has at least one transverse opening that is constructed to permit the extension therethrough of a friction element to engage the liner in the receiving chamber as said forming tube is moved from said receiving station toward the eject station to thereby wind the liner up into cylindrical configuration by catching the liner between the friction element and the central cylindrical member. After the liner has been wound up into a cylinder, ejection means ejects the liner from the forming tube, for instance, into a battery can.
Inventors
- 👤 D Trask
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:07
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/36; B29C53/38; B29C53/40; B29C53/42; B31; B31C; B31C1/00; H; H01; H01M; H01M50/00; H01M50/40; H01M50/463; H01M50/469; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53135; Y10T29/53139
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
260 words
An apparatus for forming a cylinder, which includes: a forming tube having a longitudinal axis and a receiving chamber having an annular cross section, said receiving chamber being defined by the inner surface of an outer tubular member and the outer surface of a central cylindrical member, wherein said outer tubular member has a longitudinal slot substantially parallel to said longitudinal axis and communicating with said receiving chamber, and wherein said outer tubular member has at least one transverse opening communicating with said receiving chamber, said transverse opening being substantially perpendicular to said longitudinal axis; means for indexing said forming tube to a receiving station, and means for inserting the leading edge of a predetermined length of cylinder forming material through said longitudinal slot into said receiving chamber while said forming tube is in receiving position at said receiving station; means for moving said forming tube past at least one friction element which is constructed to extend through said transverse opening to engage said material whereby said material is caught between said friction element and said central cylindrical member and is rolled up into cylindrical configuration as said forming tube is moved past said friction element; means for moving said forming tube to an eject station where said material that has been rolled up into cylindrical configuration is ejected from said forming tube; and means for indexing a cylindrical battery can to receiving position adjacent to said eject station whereby said material that has been rolled up into cylindrical configuration is ejected from said forming tube into said battery can.
Claim 2
Independent Claim
260 words
An apparatus for forming a cylinder, which includes: a forming tube having a longitudinal axis and a receiving chamber having an annular cross section, said receiving chamber being defined by the inner surface of an outer tubular member and the outer surface of a central cylindrical member, wherein said outer tubular member has a longitudinal slot substantially parallel to said longitudinal axis and communicating with said receiving chamber, and wherein said outer tubular member has at least one transverse opening communicating with said receiving chamber, said transverse opening being substantially perpendicular to said longitudinal axis; means for indexing said forming tube to a receiving station, and means for inserting the leading edge of a predetermined length of cylinder forming material through said longitudinal slot into said receiving chamber while said forming tube is in receiving position at said receiving station; means for moving said forming tube past at least one friction element which is constructed to extend through said transverse opening to engage said material whereby said material is caught between said friction element and said central cylindrical member and is rolled up into cylindrical configuration as said forming tube is moved past said friction element; means for moving said forming tube to an eject station where said material that has been rolled up into cylindrical configuration is ejected from said forming tube; and means for indexing a cylindrical battery can to receiving position adjacent to said eject station whereby said material that has been rolled up into cylindrical configuration is ejected from said forming tube into said battery can.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1 wherein said forming tube is mounted on a rotatable turret.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 wherein said central cylindrical member has a rotatable surface.
Claim 5
Dependent Claim
20 words
The apparatus of claim 1 wherein said outer tubular member, said receiving chamber, and said central cylindrical member are concentric.
Claim 6
Dependent Claim
92 words
The apparatus of claim 1 wherein said means for inserting the leading edge of said predetermined length of cylinder forming material through said longitudinal slot into said receiving chamber includes: a feed channel having a front, back, two sides, and an outlet; means for feeding said material through said feed channel in increments equal to said predetermined length; means for guiding the leading edge of said material into said longitudinal slot as said leading edge emerges from said outlet; and means for cutting said material into lengths equal to said predetermined length.
Claim 7
Dependent Claim
99 words
The apparatus of claim 5 wherein said means for guiding said leading edge of said cylinder forming material into said longitudinal slot includes: a guide plate comprising the front of said feed channel and adapted to reciprocate between a first position and a second position, wherein said guide plate moves from said first position to said second position during at least part of the time that said material is moving through said feed channel, and wherein said guide plate guides the leading edge of said material into said longitudinal slot when said guide plate is in the second position.
Claim 8
Dependent Claim
74 words
The apparatus of claim 6 wherein the means for cutting said material into lengths equal to said predetermined length comprises a movable cutter blade and a stationary cutter blade, the stationary cutter blade being adjacent to said outlet, wherein the movable cutter blade is adapted to reciprocate in a direction transverse To the direction of movement of said material through said feed channel, and to cut said material by engaging said stationary cutter blade.
Claim 9
Dependent Claim
81 words
The apparatus of claim 7 wherein said means for guiding said leading edge of said material into said longitudinal slot includes a guide member having a guiding surface, said guide member being positioned at a guiding position adjacent to said longitudinal slot when said forming tube is in receiving position at said receiving station, whereby said leading edge of said material is guided into said longitudinal slot by passing between said guide plate and said guiding surface of said guide member.
Claim 10
Dependent Claim
31 words
The apparatus of claim 8 wherein said guide member is adapted to retract from said guiding position when said movable cutter blade engages said stationary cutter blade to cut said material.
Claim 11
Dependent Claim
29 words
The apparatus of claim 9 wherein said apparatus contains a plurality of forming tubes mounted on a rotatable turret, and wherein said central cylindrical member has a rotatable surface.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |