Harold L Crowder from 1005 Chadbourne Ave, Concord, NC 28027, age 61, Phone: 7047820168

Resumes

Harold Crowder

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Us Patents

Prosthetic Knee Joint
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US Patent:

8029574, Oct 4, 2011
Filed:

Dec 31, 2010
Appl. No.:

12/983191
Inventors:

Franz W. Kellar - Gastonia NC, US
Harold Lloyd Crowder - Concord NC, US
Glenn A. Rupp - Cramerton NC, US
Assignee:

BioMedFlex LLC - Gastonia NC
International Classification:

A61F 2/30
A61F 2/38
A61F 2/44
A61F 2/32
US Classification:

623 2341, 623 1811, 623 2014, 623 2015, 623 2021, 623 2022, 623 2032, 623 2339, 623 234, 623 2343, 623 2035
Abstract:

A prosthetic knee joint includes: (a) a femoral member comprising rigid material with a convex, wear-resistant femoral contact surface including a convex ridge; (b) a tibial assembly including: (i) at least one cup comprising rigid material with a body and a rim substantially thicker than the body defining a wear-resistant cup contact surface; (ii) a rigid base; and (iii) a spring support interconnecting the cup and the base, the spring support elastically deflectable permitting controlled pivoting of the at least one cup; (c) wherein the cup contact surface bears against the femoral contact surface, transferring axial and lateral loads between the cup and femoral member, while allowing pivoting between the cup and femoral member; and (d) wherein the at least one cup allows the rim to deform elastically, permitting the cup contact surface to conform in an irregular shape to the femoral contact surface, when the knee joint is loaded.

Prosthetic Ball-And-Socket Joint
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US Patent:

8070823, Dec 6, 2011
Filed:

Mar 28, 2011
Appl. No.:

13/073963
Inventors:

Franz W. Kellar - Gastonia NC, US
Harold Lloyd Crowder - Concord NC, US
Assignee:

BioMedFlex LLC - Gastonia NC
International Classification:

A61F 2/30
A61F 2/28
A61F 2/32
A61F 2/44
US Classification:

623 234, 623 1611, 623 1714, 623 1811, 623 2211, 623 223, 623 2342, 623 2343
Abstract:

A prosthetic joint includes: (a) first member having a balanced centroidal axis, and comprising a rigid material and a concave interior defining a cup surface, the cup surface including: (i) a cantilevered first flange defining a wear-resistant protruding first contact rim, the first flange being asymmetric relative to the balanced centroidal axis; and (ii) a cantilevered second flange defining a wear-resistant protruding second contact rim; (b) a second member comprising a rigid material with a wear-resistant, convex contact surface; (c) where the first and second contact rims bear against the contact surface of the second member, to transfer loads between the first and second members, while allowing pivoting motion therebetween; and (d) wherein the flanges are shaped and sized so as to deform elastically and permit the first and second contact rims to conform in an irregular shape to the contact surface, when the joint is under load.

Crimp Fitting For Corrugated Stainless Steel Tubing
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US Patent:

8308201, Nov 13, 2012
Filed:

Aug 31, 2007
Appl. No.:

12/439527
Inventors:

Scott Duquette - Enfield CT, US
Franz Kellar - Gastonia NC, US
Harold Crowder - Concord NC, US
Vanwijak Eowsakul - Holyoke MA, US
Brian Coppola - Amherst MA, US
Assignee:

Titeflex Corporation - Springfield MA
International Classification:

F16L 33/00
US Classification:

285256, 285903, 29516
Abstract:

A fitting incorporating a crimp sealing device and a method of forming a seal between a length of corrugated tubing and the fitting are provided. A sealing crimp is formed over at least one corrugation of the tubing, where the sealing crimp can utilize a preformed bend or bulge to form a crimp and seal. Alternatively, the sealing crimp can apply pressure radially against an outer sleeve of the fitting, such that at least one corrugation of the tubing is compressed axially or radially to form a primary seal. The outer sleeve also can include one or more gaskets arranged between the outer sleeve and the tubing for forming a secondary seal. An inner sleeve can be received radially inside the outer sleeve, and one or more gaskets can be arranged between the inner sleeve and the tubing. Further, a jacket crimp can be applied against an end of the sleeve member to contact a jacket that at least partially covers the tubing.

Prosthetic Knee Joint
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US Patent:

8512413, Aug 20, 2013
Filed:

Sep 9, 2011
Appl. No.:

13/228766
Inventors:

Franz W. Kellar - Gastonia NC, US
Harold Lloyd Crowder - Concord NC, US
Glenn A. Rupp - Cramerton NC, US
Assignee:

Biomedflex, LLC - Gastonia NC
International Classification:

A61F 2/30
A61F 2/38
US Classification:

623 2341, 623 2014, 623 2021
Abstract:

A prosthetic knee joint includes: (a) a femoral member comprising rigid material with a convex, wear-resistant femoral contact surface including a convex ridge; (b) a tibial assembly including: (i) at least one cup comprising rigid material with a body and a rim substantially thicker than the body defining a wear-resistant cup contact surface; (ii) a rigid base; and (iii) a spring support interconnecting the cup and the base, the spring support elastically deflectable permitting controlled pivoting of the at least one cup; (c) wherein the cup contact surface bears against the femoral contact surface, transferring axial and lateral loads between the cup and femoral member, while allowing pivoting between the cup and femoral member; and (d) wherein the at least one cup allows the rim to deform elastically, permitting the cup contact surface to conform in an irregular shape to the femoral contact surface, when the knee joint is loaded.

Quick Actuating Fitting For Corrugated Stainless Steel Tubing
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US Patent:

20100090459, Apr 15, 2010
Filed:

Nov 16, 2007
Appl. No.:

12/515905
Inventors:

Scott Duquette - Enfield CT, US
Franz Kellar - Gastonia NC, US
Harold Crowder - Concord NC, US
Assignee:

TITEFLEX CORPORATION - Springfield MA
International Classification:

F16L 9/14
US Classification:

285 55
Abstract:

A fitting () incorporating a quick actuating sealing and locking device and methods of actuating the fitting and forming a seal between a length of corrugated tubing () and the fitting () are provided. The tubing () can be corrugated stainless steel tubing having a jacket () that at least partially covers the tubing. The sealing and locking device incorporates a sealing ring () and a loading ring ()—received in the fitting (), the sealing ring () being compressible against an end corrugation of the tubing—. The loading ring () can be actuated to move axially and engage the sealing ring (), thereby compressing the sealing ring () into substantial engagement with the end corrugation.

Prosthetic Joint
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US Patent:

20100161064, Jun 24, 2010
Filed:

Feb 26, 2010
Appl. No.:

12/714288
Inventors:

Franz W. Kellar - Gastonia NC, US
Harold Lloyd Crowder - Concord NC, US
International Classification:

A61F 2/30
US Classification:

623 1811
Abstract:

A prosthetic joint includes: (a) a bone-implantable first member comprising a rigid material and including a body having an annular flange extending outward at a first end thereof, the first end of the body and the flange cooperatively defining a wear-resistant concave first contact surface having a protruding rim and a recessed central portion; and (b) a bone-implantable second member comprising a rigid material with a wear-resistant convex second contact surface; (c) where the first and second contact surfaces bear directly against each other so as to transfer axial and lateral loads from one of the members to the other, while allowing pivoting motion between the two members; (d) wherein the flange is shaped so as to deform elastically and permit the first contact surface to conform to the second contact surface when the joint is placed under a predetermined load.

Snap-Fit Fitting For Corrugated Stainless Steel Tubing
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US Patent:

20100181760, Jul 22, 2010
Filed:

May 30, 2008
Appl. No.:

12/598380
Inventors:

Scott Duquette - East Windsor CT, US
Franz Kellar - Gastonia NC, US
Harold Crowder - Concord NC, US
Vanwijak Eowsakul - Holyoke MA, US
Assignee:

TITEFLEX CORPORATION - Springfield MA
International Classification:

F16L 21/06
B23P 11/00
US Classification:

285330, 2952502
Abstract:

A fitting incorporating a snap-fit sealing and locking device and methods of actuating the fitting and forming a seal between a length of corrugated tubing and the fitting are provided. The tubing can be corrugated stainless steel tubing having a jacket that at least partially covers the tubing. The sealing and locking device incorporates a bushing that is advanced through the application of axial pressure into a sleeve portion. Fingers on the bushing engage one or more corrugation grooves on the tubing and apply force to the tubing to collapse one or more corrugations to form a metal-to-metal seal. Distal motion of the bushing is inhibited after forming a metal-to-metal seal by contact between the bushing and the sleeve portion.

Corrugated Stainless Steel Tubing With Smooth Bore
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US Patent:

20100183893, Jul 22, 2010
Filed:

Mar 20, 2008
Appl. No.:

12/531837
Inventors:

Scott Duquette - Enfield CT, US
Dan Roberts - Mesa AZ, US
Chris Lukomski - Easthampton MA, US
Franz Kellar - Gastonia NC, US
Harold Crowder - Concord NC, US
Assignee:

TITEFLEX CORPORATION - Springfield MA
International Classification:

B32B 1/08
B05D 7/00
B32B 37/00
US Classification:

428586, 428 341, 428 369, 427230, 156293
Abstract:

Corrugated tubing () having a smooth or semi-smooth bore, and methods for fabricating such tubing are provided. A length of corrugation tubing () can be formed with a filler () or liner material inside the tubing. The filler material () or liner material may yield one or more improved properties such as reducing head (pressure) loss, reducing friction, sound damping, fire resistance, and corrosion resistance. The corrugated tubing with a smooth or semi-smooth bore can be included in a piping system in which a fitting is connected to the tubing.