← Back to Patent Explorer
US4131172A Expired / Lapsed US ⏱️ 0.0 years remaining

Access panel for enclosures

Assignee: Caterpillar Inc
•
Filing: 1977-07-11
•
Granted: 1978-12-26
•
Expires: 1997-07-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An access panel for enclosures, operable to selectively close or open an access opening, such as in an engine compartment of an engine enclosure assembly, the panel including a pair of separate sections hingedly adjacently interconnected to form a composite unit, the composite unit being operatively hingedly mounted proximate the access opening, and the individual sections being so pivotally angularly movable with respect to one another as to permit an optimum access opening in restricted or obstructed locations of the access opening.

Inventors

  • 👤 Kenneth C. Wolfgram

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 17:25
CPC Classifications
B; B62; B62D; B62D25/00; B62D25/08; B62D25/10

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 203 words
In a wheeled vehicle having an engine compartment, an enclosure for said compartment including a top wall and a vertically disposed side wall, an access opening for said compartment in said side wall, access to said opening being impeded by positionment partially behind an obstructing wheel of said vehicle, an access panel for selectively closing or opening said access opening, said access panel including a first panel section and a second panel section, said panel sections being vertically hingedly adjacently interconnected and forming a composite unit with the sections being pivotal with respect to one another, vertical hinge means at one end of said composite unit hingedly connecting said composite unit proximate said opening and pivotally mounting said first panel section for pivoting about a vertical axis with respect to said opening, and additionally pivotally mounting said composite unit for pivoting about a vertical axis with respect to said opening, the plural pivotal relationships permitting a compound pivotal movement of the individual sections with respect to one another, and of the compound unit to move said access panel in a plane horizontally from behind said obstructing wheel for optimally uncovering said access opening in the restricted operating area behind the access impeding wheel.
Claim 2
Dependent Claim 203 words
In a wheeled vehicle having an engine compartment, an enclosure for said compartment including a top wall and a vertically disposed side wall, an access opening for said compartment in said side wall, access to said opening being impeded by positionment partially behind an obstructing wheel of said vehicle, an access panel for selectively closing or opening said access opening, said access panel including a first panel section and a second panel section, said panel sections being vertically hingedly adjacently interconnected and forming a composite unit with the sections being pivotal with respect to one another, vertical hinge means at one end of said composite unit hingedly connecting said composite unit proximate said opening and pivotally mounting said first panel section for pivoting about a vertical axis with respect to said opening, and additionally pivotally mounting said composite unit for pivoting about a vertical axis with respect to said opening, the plural pivotal relationships permitting a compound pivotal movement of the individual sections with respect to one another, and of the compound unit to move said access panel in a plane horizontally from behind said obstructing wheel for optimally uncovering said access opening in the restricted operating area behind the access impeding wheel.
Claim 3
Dependent Claim 100 words
An access panel as claimed in claim 1, including a hinge inter-connecting said panel sections and being of an extended type covering substantially the length of the hinged connection between said panel sections, said hinge including a clamp means to securely clamp the panel assembly in place in said opening in a closed position thereof, a stationary post positioned proximate the hinged mounting of the composite unit, said clamp being operatively engageable with a portion of said post to cam said second panel section, and conjointly therewith said first panel section, into a securely closed position in said access opening.
Claim 4
Dependent Claim 46 words
An access panel as claimed in claim 2, and including a compressible bumper means between said post and said camming means, the clamp means functioning upon camming on said post for compressing the bumper to thereby securely resiliently position the complete panel assembly in closed position.
Claim 5
Dependent Claim 244 words
An access panel for selectively closing or opening a partially obstructed access opening in a compartment, said access panel including a first panel section and a second panel section, said panel sections being hingedly adjacently interconnected and forming a composite unit with the sections being pivotal with respect to one another, one end of said composite unit being hingedly connected proximate said opening and thereby pivotally mounting said first panel section with respect to said opening, and additionally pivotally mounting said composite unit with respect to said opening, the hinge interconnecting said panel sections being of an extended type covering substantially the length of the hinged connection between said panel sections, the plural pivotal relationships permitting a compound movement of the individual sections and the compound unit to move said access panel for optimally uncovering said partially obstructed access opening, the interconnecting hinge including a clamp means to securely clamp the panel assembly in place in said opening in a closed position thereof, a stationary post positioned proximate the hinged mounting of the composite unit, said clamp being operatively engagable with a portion of said post to cam said second panel section, and conjointly therewith said first panel section, into a closed position in said access opening, and a compressible bumper means between said post and said camming means, the clamp means functioning upon camming on said post for compressing the bumper to thereby securely resiliently position the complete panel assembly in closed position.
Claim 6
Dependent Claim 244 words
An access panel for selectively closing or opening a partially obstructed access opening in a compartment, said access panel including a first panel section and a second panel section, said panel sections being hingedly adjacently interconnected and forming a composite unit with the sections being pivotal with respect to one another, one end of said composite unit being hingedly connected proximate said opening and thereby pivotally mounting said first panel section with respect to said opening, and additionally pivotally mounting said composite unit with respect to said opening, the hinge interconnecting said panel sections being of an extended type covering substantially the length of the hinged connection between said panel sections, the plural pivotal relationships permitting a compound movement of the individual sections and the compound unit to move said access panel for optimally uncovering said partially obstructed access opening, the interconnecting hinge including a clamp means to securely clamp the panel assembly in place in said opening in a closed position thereof, a stationary post positioned proximate the hinged mounting of the composite unit, said clamp being operatively engagable with a portion of said post to cam said second panel section, and conjointly therewith said first panel section, into a closed position in said access opening, and a compressible bumper means between said post and said camming means, the clamp means functioning upon camming on said post for compressing the bumper to thereby securely resiliently position the complete panel assembly in closed position.
Claim 7
Dependent Claim 77 words
An access panel as claimed in claim 4 and further including a locking means having a first portion thereof mounted adjacent said access opening in said compartment, proximate the free end of said second panel section in closed position, and a second coacting portion of said locking means attached to said free end of said second panel section, said locking portions being operable in conjunction with said clamp means for securing said composite panel in closed position.
Claim 8
Dependent Claim 111 words
An access panel as claimed in claim 5, further including handle means operatively mounted on said second panel section, lever means extending from said handle means to said second portion, and being operable to disengage the locking means in the respective lock portions, for disengagement of said locking means to permit a first pivoting motion of said second panel section to disengage said clamping means whereupon the composite access panel can be pivoted into open position in compound movement with said second panel section pivoting with respect to said first panel section, and said first panel section conjointly with said first panel section pivoting around said hinge mounting said composite unit.
Claim 9
Dependent Claim 121 words
In an engine enclosure assembly for a wheeled vehicle, an engine compartment, an acccess opening for said engine compartment partially obstructed behind a wheel of said vehicle, hinged composite panel means operable to expose a portion of said engine compartment, said hinged composite panel means including two interconnectedly hinged sections, means hingedly mounting said composite panel means adjacent said access opening, the multiple hinges permitting hinging open the composite panel from behind the obstructing wheel, a stationary post on said vehicle proximate said access opening, resilient bumper means on said post, the hinge between said sections having clamping means thereon cooperable with said resilient bumper means to compress the same and to securely clamp the panel assembly in securely closed position.
Claim 10
Dependent Claim 121 words
In an engine enclosure assembly for a wheeled vehicle, an engine compartment, an acccess opening for said engine compartment partially obstructed behind a wheel of said vehicle, hinged composite panel means operable to expose a portion of said engine compartment, said hinged composite panel means including two interconnectedly hinged sections, means hingedly mounting said composite panel means adjacent said access opening, the multiple hinges permitting hinging open the composite panel from behind the obstructing wheel, a stationary post on said vehicle proximate said access opening, resilient bumper means on said post, the hinge between said sections having clamping means thereon cooperable with said resilient bumper means to compress the same and to securely clamp the panel assembly in securely closed position.
Claim 11
Dependent Claim 62 words
In an engine enclosure assembly as claimed in claim 7, said clamping means including a hook shaped locking tab affixed thereon, said tab, upon pivoting of the free end panel section causing a camming action of said tab on an edge of the hingedly mounted panel section to thereby compress said bumper means and forcefully secure the panel assembly in closed position.
Claim 12
Dependent Claim 80 words
In an engine enclosure assembly as claimed in claim 8, and further including a locking means having a first portion thereof mounted adjacent said access opening in said compartment, proximate the free end of a second said panel section in closed position, and a second coacting portion of said locking means attached to said free end of said second panel section, said locking portions being operable in conjunction with said clamp means for securing said composite panel in closed position.
Claim 13
Dependent Claim 113 words
In an engine enclosure assembly as claimed in claim 9, further including handle means operatively mounted on said second panel section, lever means extending from said handle means to said second portion, and being operable to disengage the locking means in the respective lock portions, for disengagement of said locking means to permit a first pivoting motion of said second panel section to disengage said clamping means, whereupon the composite access panel can be pivoted into open position in compound movement with said second panel section pivoting with respect to said first panel section, and said first panel section conjointly with said first panel section pivoting around said hinge mounting said composite unit.
Claim 14
Dependent Claim 187 words
In an engine enclosure assembly for a wheeled vehicle, an engine compartment, an access opening for said engine compartment, said access opening being partially obstructed by partial positionment behind a wheel of said vehicle, a composite access panel for selectively closing or opening said access opening, said access panel comprising first and second acces panel sections, first hinge means pivotally mounting an end of said first panel section to said engine enclosure adjacent an end of said access opening, second hinge means pivotally interconnecting said first and second panel sections, a stationary post mounted on said vehicle proximate said access opening and having an extended edge thereon, resilient bumper means mounted on said post and engageable by said first panel section in closed position of said composite panel, clamping means including a hook shaped member attached to said second hinge means and being engageable with said extended edge on said post in a pivoting closing movement of said second panel section with respect to said first section and of said access panel, and operable to compress said bumper to securely clamp the panel assembly in closed position.
Claim 15
Dependent Claim 187 words
In an engine enclosure assembly for a wheeled vehicle, an engine compartment, an access opening for said engine compartment, said access opening being partially obstructed by partial positionment behind a wheel of said vehicle, a composite access panel for selectively closing or opening said access opening, said access panel comprising first and second acces panel sections, first hinge means pivotally mounting an end of said first panel section to said engine enclosure adjacent an end of said access opening, second hinge means pivotally interconnecting said first and second panel sections, a stationary post mounted on said vehicle proximate said access opening and having an extended edge thereon, resilient bumper means mounted on said post and engageable by said first panel section in closed position of said composite panel, clamping means including a hook shaped member attached to said second hinge means and being engageable with said extended edge on said post in a pivoting closing movement of said second panel section with respect to said first section and of said access panel, and operable to compress said bumper to securely clamp the panel assembly in closed position.
Claim 16
Dependent Claim 76 words
In an engine enclosure assembly as claimed in claim 11, the multiple hinges permitting pivoting of said second panel section with respect to said first panel section, and pivoting of said composite access panel with respect to said access opening, the multiple hinges permitting hinging open the composite panel from behind the obstructing wheel by compound motions of said panel sections and of said composite access panel to thereby provide optimal opening of said access opening.
Claim 17
Dependent Claim 79 words
In an engine enclosure assembly as claimed in claim 12, and further including a locking means having a first portin thereof mounted adjacent said access opening in said compartment, proximate the free end of said second panel section in closed position, and a second coacting portion of said locking means attached to said free end of said second panel section, said locking portions being operable in conjunction with said clamp means for securing said composite panel in closed position.
Claim 18
Dependent Claim 112 words
In an engine enclosure as claimed in claim 13, further including handle means operatively mounted on said second panel section, lever means extending from said handle means to said second portion, and being operable to disengage the locking means in the respective lock portions, for disengagement of said locking means to permit a first pivoting motion of said second panel section to disengage said clamping means whereupon the composite access panel can be pivoted into open position in compound movement with said second panel section pivoting with respect to said first panel section, and said first panel section conjointly with said first panel section pivoting around said hinge mounting said composite unit.

References Cited (Backward Citations)

US1316579A Cited
US742319A Cited
US1113320A Cited
US2089504A Cited
US2765189A Cited
US2743773A Cited
US2794511A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-12-25 1982-06-26 1982-12-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-12-25 1986-06-26 1986-12-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-12-25 1990-06-26 1990-12-26 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag