US3675866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling pneumatic web roll winding shafts
Assignee: FMP/RAUMA COMPANY AN ALABAMA CORP
•
Filing: 1970-12-28
•
Granted: 1972-07-11
•
Expires: 1990-12-28
Abstract
Abstract Apparatus for inflating and deflating pneumatic winding shafts and for pulling them from and inserting them into web roll cores comprises a face-type air coupling mechanism and a jaw-type shaft gripping mechanism which maintains complementary components of the air coupling mechanism in sealing contact with each other. A pneumatic circuit with associated control valves provides for substantial automation of the air coupling and uncoupling operations, as well as for substantial automation of the shaft gripping and releasing operations.
Inventors
- 👤 Donald L Lemke
- 👤 Ronald D Ostrander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:21
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/243; B65H75/2437; B65H19/00; B65H19/22; B65H19/30; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53652
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
Apparatus for pulling and inserting pneumatic winding shafts from and into web roll cores comprising, a reciprocable puller carriage, face-type complementary air coupling means mounted, respectively, on said carriage and on the end of a pneumatic web roll winding shaft adjacent thereto for movement of said coupling means into and out of sealing contact with each other by movement of said carriage toward and away from said shaft; and releasable shaft gripping means mounted on said carriage and cooperable with said shaft so as to maintain said complementary air coupling means in sealing contact with each other.
Claim 2
Dependent Claim
97 words
Apparatus for pulling and inserting pneumatic winding shafts from and into web roll cores comprising, a reciprocable puller carriage, face-type complementary air coupling means mounted, respectively, on said carriage and on the end of a pneumatic web roll winding shaft adjacent thereto for movement of said coupling means into and out of sealing contact with each other by movement of said carriage toward and away from said shaft; and releasable shaft gripping means mounted on said carriage and cooperable with said shaft so as to maintain said complementary air coupling means in sealing contact with each other.
Claim 3
Dependent Claim
84 words
Apparatus as set forth in claim 1, wherein each of said carriage mounted and shaft mounted air coupling means comprises a seat member presenting a sealing face and internal passage means terminating at said sealing face, the internal passage means of said carriage mounted seat member enclosing a reciprocable plunger element, and the internal passage means of said shaft mounted seat member enclosing a spring biased movable check valve element adapted to be unseated by said plunger element of said carriage mounted seat member.
Claim 4
Dependent Claim
50 words
Apparatus as set forth in claim 2, and further comprising a double acting pneumatic ram operatively connected with said reciprocable plunger element so that movement of the latter by said ram in opposite directions will unseat and reseat said spring biased check valve element within said shaft mounted seat member.
Claim 5
Dependent Claim
53 words
Apparatus as set forth in claim 3, wherein said plunger element has a radially reduced end portion, and wherein said carriage mounted seat member is ported for admission and emission of air pressure to and from a portion of said internal passage means surrounding said radially reduced end portion of said plunger element.
Claim 6
Dependent Claim
111 words
Apparatus as set forth in claim 4 and further comprising a pneumatic circuit and associated valve means operable sequentially to first admit air pressure to one end of said double acting pneumatic ram so as to project said reduced end portion of said plunger element into unseating engagement with said movable check valve element and simultaneously vent the other end of said double acting pneumatic ram and the internal passage means of said carriage mounted seat member; and to subsequently pressurize said other end of said ram and admit air pressure to said internal passage means of said carriage mounted seat member, and simultaneously vent said one end of said ram.
Claim 7
Dependent Claim
44 words
Apparatus as set forth in claim 5 and further comprising air pressure control means associated with said pneumatic circuit and operable to maintain said internal passage means of said carriage mounted seat member vented until air pressure therein has decreased to a predetermined value.
Claim 8
Dependent Claim
39 words
Apparatus as set forth in claim 5 and further comprising pressure control means associated with said pneumatic circuit and operable to limit pressure build-up in said internal passage means of said carriage mounted seat member to a predetermined value.
Claim 9
Dependent Claim
79 words
Apparatus as set forth in claim 1, wherein said shaft gripping means comprises a pair of clamping jaws movably mounted on said puller carriage, spring means urging said jaws into shaft engaging position, a pneumatic one-way ram mounted on said carriage, and motion transmitting means operatively interposed between said clamping jaws and said one-way ram so as to move said jaws to a shaft releasing position in opposition to said spring means by a power stroke of said ram.
Claim 10
Dependent Claim
70 words
Apparatus as set forth in claim 8 wherein said clamping jaws are mounted on said puller carriage at fixed pivot centers, and wherein said seat member of said carriage mounted air coupling means is mounted on a resilient support operative to maintain the seat members of said carriage mounted and shaft mounted air coupling means in sealing contacT with each other upon engagement of said shaft by said clamping jaws.
Claim 11
Dependent Claim
42 words
A system as set forth in claim 9, wherein said seat member of said carriage mounted air coupling means and said double acting pneumatic ram are connected to each other for back and forth movement as a unit relative to said carriage.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |