US4997466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air filter attachment for compressor
Assignee: Ingersoll Rand Co
•
Filing: 1989-12-26
•
Granted: 1991-03-05
•
Expires: 2009-12-26
Abstract
Abstract As an air filter assembly attaches an air filter to an air compressor. The assembly includes an air filter, an outer plate and a baseplate. The air filter is positioned between the outer plate and the baseplate. A mounting device for attachment to the air compressor extends through the air filter and includes an attaching portion at a first end and a tensioning portion at a second end.
Inventors
- 👤 James A. Hood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:02
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0002; B01D46/0005; B01D46/24; B01D46/2403; B01D46/2411
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
96 words
An apparatus comprising: an air filter; attachment means including a first leg and a second leg connected to each other at one end, and attached to the air filter to support the air filter, wherein the distance between the legs varies along the length of the legs; a plurality of attachment portions, one attachment portion affixed to each leg; baseplate means for spacing the attachment portions a set distance apart; and means for moving the first and second legs in an axial direction relative to the baseplate means, resulting in a change of the set distance.
Claim 2
Independent Claim
96 words
An apparatus comprising: an air filter; attachment means including a first leg and a second leg connected to each other at one end, and attached to the air filter to support the air filter, wherein the distance between the legs varies along the length of the legs; a plurality of attachment portions, one attachment portion affixed to each leg; baseplate means for spacing the attachment portions a set distance apart; and means for moving the first and second legs in an axial direction relative to the baseplate means, resulting in a change of the set distance.
Claim 3
Dependent Claim
22 words
The apparatus as described in claim 1, wherein the attachment means is U shaped, having a connector portion and the two legs.
Claim 4
Dependent Claim
22 words
The apparatus as described in claim 2, wherein the moving means controls the distance between the connector portion and the baseplate means.
Claim 5
Independent Claim
132 words
An apparatus comprising: an air filter affixed to an air inlet; attachment means including a plurality of spaced legs connected to one another at one end, and connected to the air filter to support the air filter, the legs including at least one section wherein the distance between the legs varies along the length of the legs; baseplate means extending between the legs for maintaining the portion of the legs adjacent the baseplate means a constant distance apart; engaging means on portions of the legs distant from said one end adapted to engage a recess formed in the air inlet; and means for moving the legs relative to the baseplate means, wherein the distance between the engaging means will change as the legs are moved lengthwise in relation to the spacer means.
Claim 6
Independent Claim
132 words
An apparatus comprising: an air filter affixed to an air inlet; attachment means including a plurality of spaced legs connected to one another at one end, and connected to the air filter to support the air filter, the legs including at least one section wherein the distance between the legs varies along the length of the legs; baseplate means extending between the legs for maintaining the portion of the legs adjacent the baseplate means a constant distance apart; engaging means on portions of the legs distant from said one end adapted to engage a recess formed in the air inlet; and means for moving the legs relative to the baseplate means, wherein the distance between the engaging means will change as the legs are moved lengthwise in relation to the spacer means.
Claim 7
Dependent Claim
22 words
The apparatus as described in claim 4, wherein the attachment means is U shaped, having a connector portion connecting the two legs.
Claim 8
Dependent Claim
22 words
The apparatus as described in claim 5, wherein the moving means controls the distance between the connector portion and the baseplate means.
Claim 9
Dependent Claim
33 words
The apparatus as described in claim 5, wherein a substantially perpendicular distance between the legs, when the attachment means is in a relaxed state, changes along at least one section of the legs.
Claim 10
Independent Claim
124 words
An apparatus comprising: an air filter means for filtering a fluid flow entering an air inlet; attachment means including a first leg and a second leg connected to each other at one end and attached to the air filter at said one end to support the air filter, wherein the distance between the legs varies along the length of the legs; a plurality of attachment portions, one attachment portion affixed to each leg, the attachment portions adaptable for attachment to a recess formed in the air inlet; baseplate means for spacing the attachment portions a set distance apart; and means for moving the first and second legs in an axial direction relative to the baseplate means, resulting in a change of said set distance.
Claim 11
Independent Claim
124 words
An apparatus comprising: an air filter means for filtering a fluid flow entering an air inlet; attachment means including a first leg and a second leg connected to each other at one end and attached to the air filter at said one end to support the air filter, wherein the distance between the legs varies along the length of the legs; a plurality of attachment portions, one attachment portion affixed to each leg, the attachment portions adaptable for attachment to a recess formed in the air inlet; baseplate means for spacing the attachment portions a set distance apart; and means for moving the first and second legs in an axial direction relative to the baseplate means, resulting in a change of said set distance.
Claim 12
Dependent Claim
34 words
The apparatus as described in claim 8, wherein the attachment portions engage with the recess when the set distance is at a maximum, preventing movement of the air filter relative to the air inlet.
Claim 13
Dependent Claim
35 words
The apparatus as described in claim 9, wherein the attachment portions become disengaged with the recess when the set distance is at a minimum, permitting relative motion between the air filter and the air inlet.
Claim 14
Independent Claim
136 words
An apparatus comprising: an air filter means for filtering a fluid flow entering an air inlet of an air compressor; attachment means including a first leg and a second leg connected to each other at one end and attached to the air filter at said one end to support the air filter on the air inlet, wherein the distance between the legs varies along the length of the legs; a plurality of attachment portions, one attachment portion affixed to each leg, the attachment portions adaptable for attachment to a recess formed in the air inlet of the air compressor; baseplate means for spacing the attachment portions a set distance apart; and means for moving the first and second legs in an axial direction relative to the baseplate means, resulting in a change of said set distance.
Claim 15
Independent Claim
136 words
An apparatus comprising: an air filter means for filtering a fluid flow entering an air inlet of an air compressor; attachment means including a first leg and a second leg connected to each other at one end and attached to the air filter at said one end to support the air filter on the air inlet, wherein the distance between the legs varies along the length of the legs; a plurality of attachment portions, one attachment portion affixed to each leg, the attachment portions adaptable for attachment to a recess formed in the air inlet of the air compressor; baseplate means for spacing the attachment portions a set distance apart; and means for moving the first and second legs in an axial direction relative to the baseplate means, resulting in a change of said set distance.
Claim 16
Dependent Claim
34 words
The apparatus as described in claim 11, wherein the attachment portions engage with the recess when the set distance is at a maximum, preventing movement of the air filter relative to the air inlet.
Claim 17
Dependent Claim
35 words
The apparatus as described in claim 12, wherein the attachment portions become disengaged with the recess when the set distance is at a minimum, permitting relative motion between the air filter and the air inlet.
References Cited (Backward Citations)
US3172749A
Cited
US1639132A
Cited
US1639133A
Cited
US1892210A
Cited
US2580013A
Cited
US2824622A
Cited
US3147101A
Cited
US3174775A
Cited
US3290869A
Cited
US3176367A
Cited
US3298149A
Cited
US3488928A
Cited
US4314832A
Cited
US4726825A
Cited
US4758256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-04 | 1994-09-03 | 1995-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-04 | 1998-09-03 | 1999-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-04 | 2002-09-03 | 2003-03-05 | $7700.00 | Window Closed / Lapsed |