Patent US3670534A successfully refreshed from Google Patents.
US3670534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for treating hides
Assignee: Automatic Sprinkler Corp
•
Filing: 1969-03-20
•
Granted: 1972-06-20
•
Expires: 1989-03-20
Abstract
Abstract The hide-processing apparatus is comprised of a rotatable and axially inclined drum having two helical T-shaped blades fixed to its inside wall. The web of each blade is perforated. In treatment of hide, the drum is partially filled with a processing solution and with hide. Upon rotation of the drum in a tumbling direction, the hide is dehaired by being worked upon by the rotating blade and the removed hair is moved in an opposite direction to the movement of the hide and towards the open end of the drum. Upon rotation of the drum in a discharging direction, the treated hides are discharged through the loading end, yet, because of the perforations, most of the hide-treating liquid is retained in the drum during the discharging phase.
Inventors
- 👤 Bruce Michael Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:47
CPC Classifications
C; C14; C14B; C14B1/00; C14B2700/00; C14B2700/27
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
Hide-processing apparatus for agitating hides in a liquid processing solution, comprising: an axially inclined vessel having an opening at its upper end; helical blade means fixed to the inside wall of said vessel and extending to the edge of said opening; motor means to rotate said vessel around its inclined axis in a charging direction during which said helical blade means move the hides in a direction towards the bottom section of said vessel, and to rotate said vessel in a discharging direction (opposite to said charging direction) during which said hides are moved by said helical blade means towards and out said opening; and perforations in said helical blade means extending substantially for the entire length of said helical blade means and allowing a counterflow of said solution through such perforations in a direction opposite to the effective blade movement in the solution.
Claim 2
Dependent Claim
144 words
Hide-processing apparatus for agitating hides in a liquid processing solution, comprising: an axially inclined vessel having an opening at its upper end; helical blade means fixed to the inside wall of said vessel and extending to the edge of said opening; motor means to rotate said vessel around its inclined axis in a charging direction during which said helical blade means move the hides in a direction towards the bottom section of said vessel, and to rotate said vessel in a discharging direction (opposite to said charging direction) during which said hides are moved by said helical blade means towards and out said opening; and perforations in said helical blade means extending substantially for the entire length of said helical blade means and allowing a counterflow of said solution through such perforations in a direction opposite to the effective blade movement in the solution.
Claim 3
Dependent Claim
79 words
Hide-processing apparatus according to claim 1 wherein said blade means is comprised of a web section which extends radially inwardly in respect to said vessel and a cross-member fixed to the inner end of said web section; and wherein said perforations are in said web section, thus, causing said cross-member, upon rotation of said vessel, to block the upwardly component of solution flow and to thereby increase the counterflow producing force which acts on the solution at said perforations.
Claim 4
Dependent Claim
39 words
Hide-processing apparatus according to claim 2 wherein said web and cross-member provide a T-shaped cross-sectional contour to said blade means and, thus, cause said cross-member to increase said counterflow producing force upon rotation of said vessel in either direction.
References Cited (Backward Citations)
US1266041A
Cited
US1358601A
Cited
US1469975A
Cited
US1746481A
Cited
US2175936A
Cited
US2490215A
Cited
US3161403A
Cited
US3328006A
Cited
US3518849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |