Patent US5522150A successfully refreshed from Google Patents.

US5522150A Expired / Lapsed US ⏱️ 0.0 years remaining

Modular air dryer for compressed air with dessicant

Assignee: Bendix Commercial Vehicle Systems LLC

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Filing: 1994-02-14

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Granted: 1996-06-04

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Expires: 2014-02-14

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Abstract

Abstract Air dryer mechanism for a compressed air system includes a cover member, a desiccant housing, and an adapter member securing the desiccant housing to the cover member. In one embodiment, the adapter member is a integral purge volume which is releasably attached to both the cover member and to the desiccant housing and which defines a purge volume which stores purge air for later regeneration of the desiccant. In another embodiment, the adaptive member is a plate which is attached to both the cover member and the desiccant housing and provides flow paths communicating the supply port to the desiccant and the desiccant to the delivery port. The second embodiment, the cover member is provided with a purge volume port for connection to a remote purge volume.

Inventors

👤 Paul A. Schultz

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-08 19:13

CPC Classifications

B; B60; B60T; B60T17/00; B60T17/002; B60T17/004

Claims Analysis

Total Claims: 12

Claim 1

Independent Claim 150 words

Air drying mechanism for a compressed air system comprising a cover member having a supply port, a delivery port, a control port, a purge port, a purge valve responsive to a signal at said control port for causing said purge valve to open said purge port, a desiccant housing containing a desiccant, means defining a flow path communicating said supply port, said delivery port, and said purge port with said desiccant in said housing, an adapter member securing said desiccant housing to said cover member, first securing means for releasably securing said desiccant housing to said adapter member, and second securing means for releasably securing said cover member to said adapter member, said flow path including a first branch extending through said adapter member communicating said supply and purge ports with said desiccant and a second branch also extending through said adapter member communicating said desiccant with the delivery port.

Claim 2

Dependent Claim 150 words

Claim 3

Dependent Claim 44 words

Air drying mechanism as claimed in claim 1, wherein said adapter member includes inner and outer circumferentially extending surfaces, said inner surface defining a passage through which said first branch of said flow path communicating said desiccant with the supply and purge ports extends.

Claim 4

Dependent Claim 40 words

Air drying mechanism as claimed in claim 2, wherein said adapter member includes transverse surfaces extending between said circumferentially extending surfaces, said second branch of said flow path being in part defined by an aperture extends through said transverse surfaces.

Claim 5

Dependent Claim 17 words

Air drying mechanism as claimed in claim 3, wherein said adapter member is a substantially flat plate.

Claim 6

Dependent Claim 28 words

Air drying mechanism as claimed in claim 3, wherein said adapter member is a purge housing defining a purge volume for storing compressed air for purging said desiccant.

Claim 7

Dependent Claim 69 words

Air drying mechanism as claimed in claim 5, wherein said purge housing includes an outer circumferentially extending wall cooperating with an inner circumferentially extending wall to define said purge volume as an annular chamber between said inner and outer walls, said inner wall defining a passage within the inner wall through which said first branch of said flow path communicating said desiccant with the supply and purge ports extends.

Claim 8

Dependent Claim 33 words

Air drying mechanism as claimed in claim 6, wherein said transverse surfaces are a pair of transversely extending walls cooperating with said inner and outer circumferentially extending walls to define said purge volume.

Claim 9

Dependent Claim 17 words

Air drying mechanism as claimed in claim 1, wherein said adapter member is a substantially flat plate.

Claim 10

Dependent Claim 28 words

Air drying mechanism as claimed in claim 1, wherein said adapter member is a purge housing defining a purge volume for storing compressed air for purging said desiccant.

Claim 11

Dependent Claim 69 words

Air drying mechanism as claimed in claim 9, wherein said purge housing includes an outer circumferentially extending wall cooperating with an inner circumferentially extending wall to define said purge volume as an annular chamber between said inner and outer walls, said inner wall defining a passage within the inner wall through which said first branch of said flow path communicating said desiccant with the supply and purge ports extends.

Claim 12

Dependent Claim 33 words

Air drying mechanism as claimed in claim 10, wherein said transverse surfaces are a pair of transversely extending walls cooperating with said inner and outer circumferentially extending walls to define said purge volume.

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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)	1999-06-04	1999-12-04	2000-06-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2003-06-04	2003-12-04	2004-06-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2007-06-04	2007-12-04	2008-06-04	$7700.00	Window Closed / Lapsed

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