US4677696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust-free garment for clean room
Assignee: Toyo Lint Free Co Ltd
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Filing: 1986-11-17
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Granted: 1987-07-07
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Expires: 2006-11-17
Abstract
Abstract A dust-free garment for clean rooms made of anti-static woven cloth and comprising a jacket, pants and a hood which are sewn together in a manner that a front part of the jacket and pants are formed with a continuous single piece of cloth without seams and facings in the front, an open/close member with a fastener is provided between the front and back of the pants along the insides of the legs and crotch thereof, seams between the jacket and the hood, between the front and back parts of the jacket and pants, between front and back parts of the jacket and sleeves, between right and left parts of the back at the center are covered with piping of pieces of tape attached from outside to maintain airtightness, and drawstrings are provided at the waist and neck along the back portions of the back and the hood to thereby securely prevent harmful dust generated from underwears or the skin of workers from leaking outside.
Inventors
- 👤 Norito Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:25
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/12; A41D13/1209; A41D13/02; A41D2200/00; A41D2200/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
218 words
A dust-free garment for clean rooms, comprising: a jacket portion having sleeves, a pants portion having legs and a crotch portion, and a hood portion which are sewn together and made from synthetic woven cloth having an anti-static property, said jacket portion and said pants portion each having a front part and a back part, the front part of said jacket portion and pants portion being formed with one single continuous piece of cloth without seams or facings therein; an open-close portion provided along the insides of both legs and the crotch of the pants; fastener means coupled to said open-close portion of the garment for selectively opening and closing said open-close portion; seams between said jacket portion and said hood portion, between the front part and back parts of said jacket and pants portions, between front and back parts of said jacket portion and said sleeves, and between right and left back parts at the center of the back, being covered with piping of pieces of tape attached from the outside of the garment to keep airtightness; a first drawstring provided at the waist of the garment along the center of a back portion of the garment; and a second drawstring provided at a neck portion of the garment along the back side of said hood portion.
Claim 2
Dependent Claim
218 words
A dust-free garment for clean rooms, comprising: a jacket portion having sleeves, a pants portion having legs and a crotch portion, and a hood portion which are sewn together and made from synthetic woven cloth having an anti-static property, said jacket portion and said pants portion each having a front part and a back part, the front part of said jacket portion and pants portion being formed with one single continuous piece of cloth without seams or facings therein; an open-close portion provided along the insides of both legs and the crotch of the pants; fastener means coupled to said open-close portion of the garment for selectively opening and closing said open-close portion; seams between said jacket portion and said hood portion, between the front part and back parts of said jacket and pants portions, between front and back parts of said jacket portion and said sleeves, and between right and left back parts at the center of the back, being covered with piping of pieces of tape attached from the outside of the garment to keep airtightness; a first drawstring provided at the waist of the garment along the center of a back portion of the garment; and a second drawstring provided at a neck portion of the garment along the back side of said hood portion.
Claim 3
Dependent Claim
40 words
The dust-free garment of claim 1, wherein said fastener means comprises an elongated slide fastener means having at least one slider member for opening and closing said slide fastener means to open and close said open-close portion of the garment.
Claim 4
Dependent Claim
30 words
The dust-free garment of claim 2, wherein said slide fastener means comprises a pair of said slider members which are operable from respective opposite ends of said slide fastener means.
Claim 5
Dependent Claim
23 words
The dust-free garment of claim 3, wherein said open-close portion includes a flap for covering said slide fastener means when it is closed.
Claim 6
Dependent Claim
23 words
The dust-free garment of claim 2, wherein said open-close portion includes a flap for covering said slide fastener means when it is closed.
Claim 7
Dependent Claim
23 words
The dust-free garment of claim 1, wherein said open-close portion includes a flap for covering said slide fastener means when it is closed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |