← Back to Patent Explorer
US4917393A Expired / Lapsed US ⏱️ 0.0 years remaining

Two wheel trolley for carrying bags

Assignee: Individual
•
Filing: 1989-02-27
•
Granted: 1990-04-17
•
Expires: 2009-02-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A trolley holds a container such as a plastic bag or sack in the open position for filling and has a rotatable table at the base which allows the bag to be twisted when at least partially full for tying and sealing. The trolley comprises two upright members forming a rigid frame with a short platform at the base, a rotatable table to hold the container is supported on a leg pivoted out from the platform, the table has skirt protector strips to prevent corners of the bag overlapping the table, and flexible support arms extending out from the two upright members with external ends to hold open the container resting on the table, the support arms being movable down in line with the two upright members to take into account different sized containers, and to allow the top of the container to be lowered when twisted on the table.

Inventors

  • 👤 Ralph J. Rogers

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:20
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/12; B62B2202/00; B62B2202/22

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 205 words
A two wheel trolley for holding a flexible container comprising: two upright members, each member extending down from a handle portion to a short platform between bottom ends of the two upright members, the upright members spaced apart and joined as a rigid frame; a pair of wheels, each wheel located adjacent to the lower ends of the upright members, positioned to support and transport the trolley when the upright members are tipped back; a rotatable table to hold he container, the table supported on a leg pivotally attached to the short platform, the table having a stored position when the leg is pivoted up against the upright members; opposing skirt protector strips on the rotatable table to prevent corners of the bag overlapping the table; flexible support arms extending out from the two upright members with external ends to hold open the container resting on the table, the support arms having means to move down in line with the two upright members to take into account different sized containers, and to allow the top of the container to be lowered when twisted on the table, and grip means to hold the open edges of the container and support the container from the support arms.
Claim 2
Dependent Claim 205 words
A two wheel trolley for holding a flexible container comprising: two upright members, each member extending down from a handle portion to a short platform between bottom ends of the two upright members, the upright members spaced apart and joined as a rigid frame; a pair of wheels, each wheel located adjacent to the lower ends of the upright members, positioned to support and transport the trolley when the upright members are tipped back; a rotatable table to hold he container, the table supported on a leg pivotally attached to the short platform, the table having a stored position when the leg is pivoted up against the upright members; opposing skirt protector strips on the rotatable table to prevent corners of the bag overlapping the table; flexible support arms extending out from the two upright members with external ends to hold open the container resting on the table, the support arms having means to move down in line with the two upright members to take into account different sized containers, and to allow the top of the container to be lowered when twisted on the table, and grip means to hold the open edges of the container and support the container from the support arms.
Claim 3
Dependent Claim 33 words
The trolley according the claim 1 wherein the rotatable table rests on a single point contact surface at the end of the arm, and has limited ability to be tipped in all directions.
Claim 4
Dependent Claim 29 words
The trolley according to claim 1 wherein the flexible support arms each have a Z-bend therein to allow the edges of the container to fold over the external ends.
Claim 5
Dependent Claim 60 words
The trolley according to claim 1 wherein the flexible support arms have a substantially square cross-section, one end of each arm fitting into a substantially square tube extending from a sliding member free to move up and down each of the two upright members, and spring means to retain the flexible arms at a high position to support a container.
Claim 6
Dependent Claim 29 words
The troley according to claim 4 wherein a clamp means is provided on each sliding member to clamp the flexible arms at any position on the two upright members.

References Cited (Backward Citations)

US228733A Cited
US3633932A Cited
US3754771A Cited
US3935692A Cited
US4031689A Cited
US4202521A Cited
US4448434A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-04-16 1993-10-16 1994-04-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-04-16 1997-10-16 1998-04-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-04-16 2001-10-16 2002-04-17 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag