Patent US4093500A successfully refreshed from Google Patents.
US4093500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag forming apparatus
Assignee: Lehigh Valley Industries Inc
•
Filing: 1977-03-28
•
Granted: 1978-06-06
•
Expires: 1997-03-28
Abstract
Abstract A portable unit useful as a household appliance for making plastic bags from multi-layered plastic films. The unit comprises a housing which includes a compartment for a roll of multi-layered plastic film, a lid for the housing which, when closed, defines an elongated slot with the housing for the withdrawal of the plastic film and a hinge means between the lid and the housing for closing and opening the lid. A wire element is mounted on the upper front edge of the housing and an electric circuit, including a switch, in said housing is used to energize said wire when the lid is firmly closed. A first insulating strip overlies the wire and a second insulating strip in the lid is adapted to firmly overlie said first insulating strip. The lid also includes a channel and a cutting means slidably mounted in said channel for severing the plastic bags, and a post for actuating the switch when the lid is closed.
Inventors
- 👤 Thomas J. Browne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:14
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/84; B29C66/861; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/222; B29C65/228; B29C65/74; B29C65/745; B29C65/7451; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/70; B29C66/72; B29C66/723; B29C66/81; B29C66/814; B29C66/8145; B29C66/81457; B29C66/818; B29C66/8182; B29C66/81821; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/832; B29C66/8324; B29C66/849; B29C65/229; B29C66/004; B29C66/0042; B29C66/0044; B29C66/71; B29C66/812; B29C66/8122; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/87; B29C66/874; B29C66/8742; B29L; B29L2031/00; B29L2031/712; B29L2031/7128; B31; B31B; B31B2247/00; Y; Y10; Y10T; Y10T156/00; Y10T156/12
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
168 words
An apparatus for making plastic bags from multilayered tubular plastic film comprising a housing including a front edge portion; a compartment in said housing for said tubular film, a substantially continuous elongated base rigidly secured to and substantially spanning the length of said front edge of the housing, said elongated base having a plurality of spaced integral ridges; a wire element supported by said spaced ridges of said elongated base; a first insulating strip overlying said wire; an electrical circuit including a switch, said electrical circuit having terminals connectable to said switch and to an external power source; means in said lid for actuating said switch when said lid is closed; a second insulating strip in said lid which is substantially coextensive with and overlies said first insulating strip when said lid is closed; an elongated channel in said lid substantially coextensive with and parallel to said second insulating strip and a cutting means slideably mounted in said channel for severing the plastic bags from said tubular film.
Claim 2
Independent Claim
168 words
An apparatus for making plastic bags from multilayered tubular plastic film comprising a housing including a front edge portion; a compartment in said housing for said tubular film, a substantially continuous elongated base rigidly secured to and substantially spanning the length of said front edge of the housing, said elongated base having a plurality of spaced integral ridges; a wire element supported by said spaced ridges of said elongated base; a first insulating strip overlying said wire; an electrical circuit including a switch, said electrical circuit having terminals connectable to said switch and to an external power source; means in said lid for actuating said switch when said lid is closed; a second insulating strip in said lid which is substantially coextensive with and overlies said first insulating strip when said lid is closed; an elongated channel in said lid substantially coextensive with and parallel to said second insulating strip and a cutting means slideably mounted in said channel for severing the plastic bags from said tubular film.
Claim 3
Dependent Claim
53 words
An apparatus as in claim 1 further including an elongated groove on said front edge of said housing adjacent to said compartment, an elongated resilient strip in said groove and an elongated integral ridge in said lid substantially coextensive with and adapted to press said elongated resilient strip when said lid is closed.
Claim 4
Dependent Claim
18 words
An apparatus as in claim 1 wherein said housing includes means for tautly securing said wire in position.
Claim 5
Dependent Claim
18 words
An apparatus as in claim 2 wherein said housing includes means for tautly securing said wire in position.
Claim 6
Dependent Claim
21 words
An apparatus as in claim 1 wherein at least one of said first and second insulating strips is a resilient material.
Claim 7
Dependent Claim
21 words
An apparatus as in claim 2 wherein at least one of said first and second insulating strips is a resilient material.
Claim 8
Dependent Claim
21 words
An apparatus as in claim 3 wherein at least one of said first and second insulating strips is a resilient material.
Claim 9
Dependent Claim
21 words
An apparatus as in claim 4 wherein at least one of said first and second insulating strips is a resilient material.
Claim 10
Dependent Claim
23 words
An apparatus as in claim 1 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
Claim 11
Dependent Claim
23 words
An apparatus as in claim 2 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
Claim 12
Dependent Claim
23 words
An apparatus as in claim 3 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
Claim 13
Dependent Claim
23 words
An apparatus as in claim 4 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
Claim 14
Dependent Claim
23 words
An apparatus as in claim 5 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
Claim 15
Dependent Claim
23 words
An apparatus as in claim 6 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
Claim 16
Dependent Claim
23 words
An apparatus as in claim 7 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
Claim 17
Dependent Claim
23 words
An apparatus as in claim 8 wherein said compartment comprises a pair of spaced retaining members for securely retaining said multilayered tubular film.
References Cited (Backward Citations)
US3496049A
Cited
US3553059A
Cited
US3624349A
Cited
US3671357A
Cited
US3752725A
Cited
US3753829A
Cited
US3731054A
Cited
US4021290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |