Nova Patents
US3175338A

Device for closing sacks or the like

Abstract

This record has no abstract on file.

US3175338A, drawing sheet 1
Sheet 1 of 7

Term

Term ended

Expired 30 March 1982, 44.5 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

3 claims: 3 independent, 0 dependent

  1. 1
    We claim:1. A device for forming a bag or the like and closing the open top thereof comprising an elongated horizontal base member, portions of said base member defining an opening intermediate the ends thereof to receive a sheet of material of sufficient size to form a bag, holding means underslung below a pair of coaxial pivots which are mounted on said base member adjacent one end, the latter means being movable to a position spaced from and over the opening to engage the top of a sheet bag disposed from the top in the opening in said base member, horizontal guide means secured to opposite marginal edges of said base member, a slide member carried by said base member and movable only longitudinally thereof in said guide means, said slide member upon movement into engagement with the bag adjacent the top thereof constricting the bag whereby a tie can be applied thereto, and means to limit the extent of longitudinal movement of said slide member in each direction relative to said base, whereby the slide can be neither removed from the base when the former is moved to an initial open position, nor moved in an opposite direction beyond a position wherein the opening in the base is completely closed when observed from above.
  2. 2
    A device for forming a bag or the like and closing the open top thereof comprising a rectangular in plan base member including pairs of top edges and a top-uncovered bottom plate portion possessing a plurality of through walls, the walls located so as to define a longitudinally off-center opening, the edges of the opening being capable of receiving from above a centrally depressed and paired top edge overhanging sheet of material of sufficient size to form a bag, a slide plate member carried by said base directly above said bottom plate and longitudinally movable only relatively thereto, said slide member being capable of partially supporting the bag sheet, a pair of upstanding lugs with horizontal and transversely aligned coaxial apertures located near one perimetric edge of the device, a hold down plate pivotally supported by pivot pins carried by said apertures, and in underslung relationship with respect to said pins, the under surface of said hold down plate being closely adjacent the upper surface of said slide plate, to thus clamp and retain the top edge overhanging portions of the sheet above said opening, whereby upon engagement of the moving slide member with the top edge portion of the sheet, a constriction is effected to form a closed bag which may then be permanently closed by application of a tie. References Cited by the Examiner UNITED STATES PATENTS 336,823 2/86 Rice__________________ 53—226 1,116,736 11/14 Ramsey_______________53—135 2,394,219 2/46 Vachon_____________ 53—222X 2,486,762 11/49 Pfeiffer 53—30 2,831,302 4/58 Jensen et al._________ 53—198X 2,836,941 6/58 Hultkrans et al._______ 53—30X 2,838,897 6/58 Ponten et al.___________ 53—226 2,867,066 1/59 Platt et al______________53—198
  3. 3
    3,000,158 9/61 Naslund_________ 53—198 FRANK E. BAILEY, Primary Examiner. BROMLEY SEELEY, Examiner.