US4972829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cure bandage
Assignee: PACIFIC EXPLORATION Inc A CA Corp
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Filing: 1988-11-23
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Granted: 1990-11-27
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Expires: 2008-11-23
Abstract
Abstract A protective bandage is provided having a circumferentially shaped foam base topped with a protective grill or screen. The grill is attached to the foam base either mechanically or with an adhesive bonding sheet. The underside of the foam base is coated with an adhesive for attachment to the skin. The resulting bandage provides protection from physical trauma, enhances the flow of air to the wound, and allows application of medication to the wound without the need for bandage removal.
Inventors
- 👤 Richard P. Knerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:11
CPC Classifications
A; A61; A61F; A61F15/00; A61F15/008; A61F13/00; A61F13/02; A61F13/0203; A61F13/0206; A61F13/0226; A61F13/0246; A61F2013/00361; A61F2013/00365; A61F2013/00387; A61F2013/00795; A61F2013/00829; A61F2013/00834; A61F2013/00855; A61F2013/00859
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
112 words
A protective apparatus for promoting healing of a wound, comprising: a frame-like foam base enclosing an inner region of predetermined geometric shape, said frame having an upper face, a lower face, and a predetermined thickness sufficient to create an enclosure of a predetermined volume surrounding the wound on all sides; a grill comprising a network of more than two crossed tines defining a plurality of openings, attached to the upper face of the foam base and disposed over the inner region; means for attaching the grill to said upper face; and means for attaching the foam base around a wound, whereby flow of air into the enclosure surrounding the wound is facilitated.
Claim 2
Dependent Claim
112 words
A protective apparatus for promoting healing of a wound, comprising: a frame-like foam base enclosing an inner region of predetermined geometric shape, said frame having an upper face, a lower face, and a predetermined thickness sufficient to create an enclosure of a predetermined volume surrounding the wound on all sides; a grill comprising a network of more than two crossed tines defining a plurality of openings, attached to the upper face of the foam base and disposed over the inner region; means for attaching the grill to said upper face; and means for attaching the foam base around a wound, whereby flow of air into the enclosure surrounding the wound is facilitated.
Claim 3
Dependent Claim
16 words
The apparatus as claimed in claim 1, wherein the grill is constructed of a semi-rigid material.
Claim 4
Dependent Claim
26 words
The apparatus as claimed in claim 2, wherein the means for attaching the grill to the upper face of the foam base comprises an adhesive material.
Claim 5
Dependent Claim
41 words
The apparatus as claimed in claim 3, wherein the adhesive material comprises a bonding sheet of a shape similar to the foam base such that the grill is disposed between the bonding sheet and the upper face of the foam base.
Claim 6
Dependent Claim
35 words
The apparatus as claimed in claim 4, wherein the means for attaching the foam base around a wound comprises an adhesive coating on at least some portion of the lower face of the foam base.
Claim 7
Dependent Claim
14 words
The apparatus as claimed in claim 5, further comprising means for absorbing wound discharge.
Claim 8
Dependent Claim
37 words
The apparatus as claimed in claim 6, wherein the means for absorbing wound discharge comprises: an absorbent inset of a predetermined shape surrounded by the foam base; and means for attaching the inset to the foam base.
Claim 9
Dependent Claim
23 words
The apparatus as claimed in claim 7, wherein the means for attaching the absorbent inset to the foam base comprises an adhesive material.
Claim 10
Dependent Claim
22 words
The apparatus as claimed in claim 6, further comprising: an air permeable covering and means for attaching the covering to the grill.
Claim 11
Dependent Claim
21 words
The apparatus as claimed in claim 9, wherein the means for attaching the covering to the grill comprises an adhesive material.
Claim 12
Dependent Claim
24 words
The apparatus as claimed in claim 1, wherein the means for attaching the grill to the upper face of the foam base is mechanical.
Claim 13
Independent Claim
132 words
An apparatus for protecting a wound on an appendage of a human or animal, comprising: at least one foam ring through which an appendage can be inserted, each foam ring having an inner surface, an outer surface and a predetermined thickness; a generally cylindrical grill having an open end and a closed end and defining a plurality of openings attached to the outer surface of each foam ring, the grill and foam ring cooperating to form an enclosure of a predetermined volume surrounding the wound on all sides and to space the grill a predetermined distance away from the appendage; means for attaching the grill to the outer surface of each foam ring; and means for attaching each foam ring to said appendage, whereby flow of air to the wound is facilitated.
Claim 14
Independent Claim
132 words
An apparatus for protecting a wound on an appendage of a human or animal, comprising: at least one foam ring through which an appendage can be inserted, each foam ring having an inner surface, an outer surface and a predetermined thickness; a generally cylindrical grill having an open end and a closed end and defining a plurality of openings attached to the outer surface of each foam ring, the grill and foam ring cooperating to form an enclosure of a predetermined volume surrounding the wound on all sides and to space the grill a predetermined distance away from the appendage; means for attaching the grill to the outer surface of each foam ring; and means for attaching each foam ring to said appendage, whereby flow of air to the wound is facilitated.
Claim 15
Dependent Claim
16 words
The apparatus as claimed in claim 12, wherein the grill is constructed of a semi-rigid material.
Claim 16
Dependent Claim
26 words
The apparatus as claimed in claim 13, wherein the means for attaching the grill to the outer surface of each foam ring is an adhesive material.
Claim 17
Dependent Claim
36 words
The apparatus as claimed in claim 14, wherein the adhesive material comprises a bonding ring overlying the grill, such that the grill is secured between the bonding ring and the outer surface of the foam ring.
Claim 18
Dependent Claim
29 words
The apparatus as claimed in claim 15, wherein the means for attaching each foam ring to an appendage comprises an adhesive coating on the inner surface of the ring.
Claim 19
Dependent Claim
14 words
The apparatus as claimed in claim 16, further comprising means for absorbing wound discharge.
Claim 20
Dependent Claim
26 words
The apparatus as claimed in either claim 11 or claim 16, further comprising: an air permeable covering and means for attaching said covering to the grill.
Claim 21
Dependent Claim
16 words
The apparatus as claimed in claim 18, wherein the means for attaching is an adhesive material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-26 | 1994-05-28 | 1994-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-26 | 1998-05-28 | 1998-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-26 | 2002-05-28 | 2002-11-27 | $7700.00 | Window Closed / Lapsed |