US5062370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip sheet having permanently bent pull tab and method of making the same
Assignee: Baron Industries Inc
•
Filing: 1990-07-03
•
Granted: 1991-11-05
•
Expires: 2010-07-03
Abstract
Abstract Herein is an idea related to creating and improving the ease of loading and unloading palletized materials. Its prime functions are to increase speed and ease of handling and to prolong the life of the plastic slip pallets. By using a method to pull small unconnected lines or areas of an extruded plastic sheet downward, an upward angle will result on one or both sides of these indentations depending on their size, shape and design.
Inventors
- 👤 Leon D. Etlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:36
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/36; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24488
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
112 words
A slip sheet device for supporting and pulling a load positioned thereon onto the fork arms of a lift truck comprising: a sheet of deformable plastic material having a flat main support portion; a flap portion non-separably connected to said flat main support portion by an elongation transverse hinge portion providing a longitudinal pivotal axis enabling resilient pivotal movement of said flap portion relative to said main support portion; said flap portion being normally outwardly inclined relative to said main support portion; said hinge portion comprising a uniform continuous pattern of equal size and equally spaced indentations formed in said plastic material; and the indentations have triangular-shape flat unformed sheet portions therebetween.
Claim 2
Dependent Claim
112 words
A slip sheet device for supporting and pulling a load positioned thereon onto the fork arms of a lift truck comprising: a sheet of deformable plastic material having a flat main support portion; a flap portion non-separably connected to said flat main support portion by an elongation transverse hinge portion providing a longitudinal pivotal axis enabling resilient pivotal movement of said flap portion relative to said main support portion; said flap portion being normally outwardly inclined relative to said main support portion; said hinge portion comprising a uniform continuous pattern of equal size and equally spaced indentations formed in said plastic material; and the indentations have triangular-shape flat unformed sheet portions therebetween.
Claim 3
Dependent Claim
32 words
The invention as defined in claim 1 and wherein: the indentations are elongated and adjacent ones of said indentations are oppositely equally inclined relative to the longitudinal axis of said hinge portions.
Claim 4
Dependent Claim
41 words
The invention as defined in claim 2 and wherein: the indentations have equal lengths and adjacent ones of said indentations alternately provide a first pair of closely laterally spaced end portions and a second pair of widely laterally spaced end portions.
Claim 5
Dependent Claim
157 words
A slip sheet for pulling a load positioned thereon onto the fork arms of a lift truck comprising: (a) a thin sheet of deformable plastic material having a flat main load support portion and an inclined flat non-separable pull tab portion with at least one substantially straight outer edge; (b) said sheet having a series of discontinuous indentations formed therein, said indentations defining a hinge-like boundary between said support portion and said tab portion which is located in inwardly spaced relationship to said edge; (c) said indentations having an angle of inclination with respect to said edge, with the angle of each indentation being supplementary to the angle of each adjacent indentation; and (d) said indentations have first predetermined lengths and spaced opposite end portions and said opposite end portions of adjacent indentations are separated from each other by spaces having second predetermined lengths, and said first predetermined lengths are substantially larger than said second predetermined lengths.
Claim 6
Dependent Claim
157 words
A slip sheet for pulling a load positioned thereon onto the fork arms of a lift truck comprising: (a) a thin sheet of deformable plastic material having a flat main load support portion and an inclined flat non-separable pull tab portion with at least one substantially straight outer edge; (b) said sheet having a series of discontinuous indentations formed therein, said indentations defining a hinge-like boundary between said support portion and said tab portion which is located in inwardly spaced relationship to said edge; (c) said indentations having an angle of inclination with respect to said edge, with the angle of each indentation being supplementary to the angle of each adjacent indentation; and (d) said indentations have first predetermined lengths and spaced opposite end portions and said opposite end portions of adjacent indentations are separated from each other by spaces having second predetermined lengths, and said first predetermined lengths are substantially larger than said second predetermined lengths.
Claim 7
Dependent Claim
107 words
A slip sheet device for supporting a load comprising: a sheet of deformable plastic material having a flat main load support portion; a non-separable integral pull flap portion connected to said flat main load support portion by an elongated transverse hinge portion providing a longitudinal pivotal axis therebetween; said flap portion being outwardly inclined relative to said main support portion; and said hinge portion comprising a uniform continuous pattern of a plurality of equal size and equally spaced separate discontinuous indentations formed in said plastic material between said flat main load support portion and said pull flap portion and extending transversely relative to said longitudinal pivotal axis.
Claim 8
Dependent Claim
107 words
A slip sheet device for supporting a load comprising: a sheet of deformable plastic material having a flat main load support portion; a non-separable integral pull flap portion connected to said flat main load support portion by an elongated transverse hinge portion providing a longitudinal pivotal axis therebetween; said flap portion being outwardly inclined relative to said main support portion; and said hinge portion comprising a uniform continuous pattern of a plurality of equal size and equally spaced separate discontinuous indentations formed in said plastic material between said flat main load support portion and said pull flap portion and extending transversely relative to said longitudinal pivotal axis.
Claim 9
Dependent Claim
52 words
The invention as defined in claim 5 and wherein: said indentations have first predetermined lengths and spaced opposite end portions and said opposite end portions of adjacent indentations are separated from each other by spaces having second predetermined lengths, and said first predetermined lengths are substantially larger than said second predetermined lengths.
Claim 10
Dependent Claim
18 words
The invention as defined in claim 4 and wherein: the indentations have triangular-shape flat unformed sheet portions therebetween.
Claim 11
Dependent Claim
32 words
The invention as defined in claim 7 and wherein: the indentations are elongated and adjacent ones of said indentations are oppositely equally inclined relative to the longitudinal axis of said hinge portion.
Claim 12
Dependent Claim
37 words
The invention as defined in claim 8 and wherein: the indentations have equal lengths and said indentations have a first pair of closely laterally spaced end portions and a second pair of widely laterally spaced end portions.
References Cited (Backward Citations)
US29192A
Cited
US2302137A
Cited
USRE29192E
Cited
US4051285A
Cited
US4042127A
Cited
US4198912A
Cited
US4507348A
Cited
US4649007A
Cited
US4570546A
Cited
US4738153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-04 | 1995-05-06 | 1995-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-04 | 1999-05-06 | 1999-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-04 | 2003-05-06 | 2003-11-05 | $7700.00 | Window Closed / Lapsed |