Boliven PRO is more than just patent search

  • Build and save lists using the powerful Lists feature
  • Analyze and download your search results
  • Share patent search results with your clients

Patents »

US4345386: Air agitation device


Filing Information

Inventor(s) Carra Gianni ·
Assignee(s) Carra Officine Meccaniche S.p.A. ·
Attorney/Agent(s) Fleit & Jacobson ·
Primary Examiner Larry I. Schwartz ·
Application Number US6220919
Filing date 12/29/1980
Issue date 08/24/1982
Predicted expiration date 12/29/2000
U.S. Classifications 34/218  · 34/229  · 34/222  · 34/223  · 34/219  · 34/230  · 415/70  · 416/64  · 416/78  ·
International Classifications F26B 906  ·
Kind CodeA
International Classifications 34219;218;222;223;229;230 ·
Foreign Priority IT3582A79 - 12/31/1979 ·
2 Claims, No Drawings


Disclosed herein is an air agitation device that is positioned between two opposite sets of shelves on which the articles to be dried are placed. The device constitutes two identical crankshafts, oriented in the same direction, that rotate in synchrony with respect to axes perpendicular to the opposite surfaces of the said sets of shelves. To the crankpins of the said shafts are articulated, on opposite sides, two ventilation frames, each of which provided with a plurality of fins oriented suitably with respect to the said sets of shelves. The synchronous rotation of the crankshafts renders movable each frame, which oscillates with a harmonic motion in two inter-perpendicular directions, one of which is coincident with the longitudinal axis of the passageway existing between the sets of shelves. The longitudinal harmonic oscillation of each frame causes, on the part of this, a flow of air directed alternately towards the upper and the lower part of one and the other set of shelves, respectively; the contrary occurs for the other frame.

Independent Claims | See all claims (2)

  1. 1. An air agitation device placed in a multiple section drying chamber having a central passageway between shelf sections, the device positioned in the passageway existing between two opposite sets of shelves on which articles to be dried are placed, the air agitation device comprising: at least two crankshafts, each having a crankpin, said crankshafts being identical, oriented in the same direction and rotating with respect to axes perpendicular to the longitudinal surfaces of said sets of shelves that face the passageway, and situated in proximity of the extremities of the said passageway; motor means for driving at least one of said crankshafts; journal means allowing the rotation of said crankshafts about said perpendicular axes; at least two frames articulated to corresponding crankpins of the said crankshafts, and placed on two parallel planes positioned one on each side of said journal means of the said crankshafts and perpendicular to the said journal means; and means of ventilation, carried by the same frames, for producing a flow of air in the direction perpendicular to the said longitudinal surfaces of the sets of shelves.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US1339131 FRANK PATRONO Patrono et al. May 1920
US4021928 Research Corporation Johnson May 1977
US4182049 Lestraden Jan 1980
US4184805 ARNOLD LEE Arnold Jan 1980

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
AT313149OHG CARRAFeb 1974

Referenced By

The current document is not referenced by other documents.